Project: Char Network is an open-source Bitcoin staking platform enabling a whole new generation of Bitcoin Layer 2 solutions.
Company: MZERO is a Miami-based software development team pioneering cutting-edge Bitcoin technologies, including the Char Network. Led by Bitcoin Core Developer Jeremy Rubin, MZERO prides itself on being an in-person, scrappy, and super-fun crew that's pushing the boundaries of what Bitcoin can do.
Experience: Mid-Senior level engineers. Familiarity with Bitcoin is "nice-to-have" but not required. Working onsite is a must!
We're aggressively hiring so don't be shy about reaching out! Send your github, resume, and cover letter to jobs@char.network. Use “{Job Title} Application - Hacker News” as the subject line.
Read the JD's below:
- Senior Engineer: https://bitcoinerjobs.com/job/1686628-senior-engineer-char-n...
- Engineering Manager: https://bitcoinerjobs.com/job/1687410-engineering-manager-ch...
We’re a VC-backed, fully-remote, fast-growing creator marketplace linking eCommerce brands with everyday social media users.
• Senior Full Stack JavaScript Developer ($120-160k USD): Modern tech stack—React, Node.js, Next.js, and Azure. Individual contributor on a small team with no mentoring duties and a 4-day work week.
• Senior QA Specialist & Analyst ($75-100k USD): Hybrid role blending business analysis with manual web app testing.
• Technical Product Operations Lead ($100-150k USD): Data-focused operations. We seek business-minded engineers with SQL, analytics, and integration skills.
APPLY –> https://stack-influence.breezy.hr/
Company: Offload is a permit driven dispatching solution purpose built for the industry moving the largest, most complex pieces of freight. Our customers haul the infrastructure of modern society and operate totally different from carriers moving general commodity freight. We’re bringing operational efficiency, organizational transparency and actionable data to an industry living on whiteboards and spreadsheets.
Experience: Strong preference for early stage experience (0 to 1)
Full-Stack Application Development: Create and maintain responsive, high-performing applications using React, TypeScript, NestJS, PostreSQL, vector DBs, and other technologies/platforms as required
Venture backed, early stage with good early traction. Team is small but stacked - want to add someone who can help us accelerate.
https://wellfound.com/l/2B8mPd or reach out brooke@letsoffload.com
Gigster is hiring a remote Senior Solutions Architect (Americas) to lead client projects, build Azure cloud solutions, and optimize costs. Must have 10+ years of experience, including 5+ with Azure, solid coding skills, and FinOps knowledge.
Learn more: https://job-boards.greenhouse.io/gigster/jobs/5392001004
This is a customer support platform designed for community-driven companies. The solution enables businesses to support their communities across multiple channels—including websites, Discord, Telegram, Slack, and email—all from a powerful and secure dashboard.
Essential - 3+ years of relevant development experience - Experience building SaaS products - Highly proficient and experienced with MongoDB, AWS, Node.JS, TypeScript - Ability to speak and write in English fluently - Experience within a startup environment and small development teams, building features and products end-to-end
Nice to haves - Experience with Svelte - Experience with using the latest AI tools in your development workflows
For questions and submissions find the email in my profile.
We're looking for early-stage talent to join our team in these roles:
1. Frontend Design Engineer: https://apply.workable.com/giskard/j/EB872047FF/
2. AI Security & Safety Researcher: https://apply.workable.com/giskard/j/E89FE8E310/
3. LLM Developer Advocate: https://apply.workable.com/giskard/j/FD207CDFBD/
4. Customer Success Manager: https://apply.workable.com/giskard/j/1446F6A1B6/
5. Enterprise Account Executive: https://apply.workable.com/giskard/j/1F95E78192/
Fourier Audio is revolutionising the way audiences experience audio by reinventing the tools used by designers to shape sound for live productions.
We’re an UK pro-audio startup backed by one of the world' biggest entertainment technology groups, looking for passionate engineers driven by a desire to build seriously excellent pro-audio products. We want people with an eye for detail, who relish the challenge of a wide remit with scope to innovate. We believe in freedom & responsibility; working with excellent people and letting them be excellent. You’ll join a focused and driven team intent on changing the (live audio) world.
Our stack:
- Rust & Typescript (Electron+React)
We offer:
- Remote or Office
- Startup vibe, experienced group stability
- Work on gear used on the biggest gigs in the world
I can answer any questions (email in profile, include HN in subject). Full details and to apply:
At the PSL studio, we build startups from zero to launch. Over the past 9 years, we've validated 450+ ideas and spun out north of 40 companies.
Our core team of engineers works to validate the technical feasibility of idea/seed stage companies and build prototypes for them once we've reached conviction on the market.
We have 3 principal engineers currently and have an opening for one more.
Learn more and apply via the job posting here: https://www.psl.com/jobs/job?gh_jid=7885441002
ApplianSys is a UK-based entrepreneurial company specialising in network appliance products, including CACHEbox, DNSbox, and EDUGATEbox. With customers in over 160 countries, we are recognised globally for our excellence in delivering tailored solutions for challenging
markets.
We urgently need highly capable, ambitious software engineers to accelerate our product development and help take us to the next level.
This position is for senior developers to contribute to all phases of the product development cycle. You will:
Work in teams to specify, design, and develop software for new products or upgrades. Provide technical leadership within the team, mentoring junior developers. Collaborate closely with hardware development, technical support, marketing, sales, and production teams, offering opportunities for cross-functional projects. Key Requirements Proficiency in Linux programming and fluency with network applications and protocols. Strong Python skills, or a strong grasp of multiple programming languages with transferable skills. Basic UI design and web application implementation knowledge. Strong team player with leadership ability, problem-solving skills, and stakeholder engagement experience. Organised and thorough, comfortable in a multi-tasking, deadline-driven environment. Degree in Computer Science or equivalent professional experience. Expertise in network technologies such as HTTPS, PKI, HTTP2/3, TLS, DNS, DHCP, Squid, nginx, etc. Understanding of Linux internals (kernel tuning, device drivers, system optimization).Email your CV to charlotte.hoptroff@appliansys.com and make sure to reference Hacker News! For more insight into working at ApplianSys, visit www.careers.appliansys.com.
We do audio video software (video editing, visual effects) and work remotely. I'm looking for self motivated individuals, great at async + remote + text communication and able to organize, report and manage the work themselves without external inputs.
Send me an email, the first part of the email is "contact" and after @ the domain name. Tell me your story, what you're looking for in your life now, a previous bad work experience you'd like to avoid and a good work experience that inspires you for the future
Agency hiring for a client through a fast-lane process. Permanent full-time position. US work authorization is needed due to the Public Trust Clearance requirement.
General Requirements - Experience - 7 to 8 years of overall professional experience in data science, analytics, or a related field
- At least 2–3 years of hands-on experience specifically focused on Large Language Models (LLMs) and related techniques (e.g., fine-tuning, instruction tuning, prompt engineering).
- Ability to obtain a Public Trust Clearance (Required for the role)
- Must be authorized to work in the United States.
Technical Proficiency:
- Coding knowledge and experience with at least one of the following languages: Python, C, R, Java, Scala, with strong proficiency in Python being highly preferred.
- Proven ability to use statistical computer languages (Python, R, SQL, etc.) for data manipulation, analysis, and model development.
- Knowledge of ML and data mining techniques (Regression, Deep Learning, NLP, Time Series Analysis, Social Media Analysis, etc.).
- Familiarity with AWS services (Athena, S3, Glue, SageMaker, Comprehend, Bedrock) for scalable model development.
- Preferred: exposure to MLOps tools, big data technologies (Hadoop, Spark), or other cloud services.
LLM-Focused Skills (Desired, not all required): - PEFT (LoRA/QLoRA) for efficient model fine-tuning. - Instruction Fine-tuning, Retrieval-Augmented Generation (RAG), Chain-of-Thought (CoT)/Tree-of-Thought (ToT). - Quantization, Pruning, and Knowledge Distillation strategies for model optimization. - Experience with Hugging Face Transformers, LangChain, Llama Index, and/or large-scale training frameworks. - Familiarity with LLM evaluation, interpretability, and best practices.
A young and dynamic company, active in energy transition and scaling up!
To further scale, we are looking for a new medior/senior software engineer - energy management strategies (EMS)
You role will be:
-Help with the development of the core of our EMS, ensuring it is robust, scalable and future-proof.
-Tackle complex mathematical challenges, with high-performance code.
-Develop and optimize the EMS core with scalable architecture.
-Implement advanced mathematical models for energy optimization (linear programming, convex optimization).
-Write top-tier code in C++ (Python is a plus).
-Ensure seamless integration between EMS, cloud services, APIs and IoT devices.
Make sure to apply using the spontaneous solicitation or to mail your CV to hilde@lifepowr.io and mention Hacker News!
We sell an unlabeled front-end application to credit unions and banks that allow millions to bank digitally with feature parity to large banks like Chase.
We run an AWS shop for the basic EKS/insert managed service but also write our own services for internal use. We pride ourselves on trying new things, even if they don't always pan out.
The SRE team at Lumin runs as a collaborative unit, with a "part of the ship, part of the crew" mentality. If you value being part of a tight knit team with the freedom to explore and innovate, apply!
If you apply, mention this post please!
Doctors are overworked, burnt out, and are quitting in masses.
I'm head of engineering at Freed, where we combine clinician love with the latest AI tech and intense execution to create products that make clinicians happier.
Our first product is an AI scribe that automates medical documentation.
- Acquired 17,000 paying and loving clinicians
- Generate 70,000 patient notes daily using ASR and LLMs, and have saved clinicians 2.7 million hours
- Created a consumer-grade UX, with greater enthusiasm than any product I've seen (https://love.getfreed.ai/b2xGQ1)
- Raised $30M led by Sequoia Capital, and are rapidly expanding our product offering.
Our engineering culture emphasizes speed, end-to-end ownership, responsibility, and independence. Our tech stack is React and TypeScript / Node.js.
Apply here: https://www.getfreed.ai/careers?utm_source=AOxjbOpE3X
Oliver's Army | iOS Founding Engineer | Remote | Full-time
We're building a next-generation social platform that connects people through real-time conversations. Our mission: "Prompt humans, not bots."
As our iOS Founding Engineer, you'll create our first native mobile experience for our real-time social Q&A platform with an innovative windowed interface. Our stack includes React, Next.js, Socket.IO, and MongoDB.
Join us to build something meaningful that facilitates genuine human connection in a world dominated by AI.
Apply: brandon@olivers.army
We're hiring engineers who want to work on challenging problems at scale. Our SaaS security platform processes massive amounts of traffic globally, and we’re looking for talented people to help us grow and improve it.
Site Reliability Engineer / DevOps – Own and scale critical infrastructure, optimize performance, and drive reliability across a globally distributed system. You should be strong in Kubernetes, networking, cloud infrastructure, CI/CD, and backend engineering. High impact, high ownership, and the latest tech.
More details: https://apply.workable.com/imachines/j/CD0057C4CC/
We're also hiring for:
Senior ML Applied Scientist - https://apply.workable.com/imachines/j/912CC62559/
Product Quality Analyst – https://apply.workable.com/imachines/j/4EC37DD078/
SREs – https://apply.workable.com/imachines/j/CD0057C4CC/
Senior Backend Engineers – https://apply.workable.com/imachines/j/2DE5642C7E/
Security Engineers – https://apply.workable.com/imachines/j/C5412F5387/
See all open roles: https://apply.workable.com/imachines/
Join us and build something impactful!
At Athena Intelligence, we are a venture-backed AI startup where we created an AI agent named Athena who functions as an artificial employee for leading enterprises. Companies including the likes of Anheuser-Busch are customers of ours and we are looking to expand our engineering team to support the extensive market demand that we need your help in supporting given the speed at which we are growing at!
If you like the idea of being on the forefront of AI agent adoption, developing cutting edge products on a nimble team, and are comfortable tackling projects head-on/comfortable with ambiguity, check us out and submit an application at: https://www.athenaintel.com/company#careers
We are hiring for FDEs, Product Engineers, and Platform Engineers
Viam helps companies unlock the power of AI, data, and automation in the physical world. We provide a single platform for engineers of all disciplines to solve problems together and build solutions that are fast and future-proof. Viam powers solutions across robotics, climate tech, marine, industrial manufacturing, Food & Beverage, and more. Founded in 2020 by former MongoDB co-founder and CTO Eliot Horowitz.
As a member of our Data team, you will tackle interesting problems that span various technical challenges in data storage, database optimization, data querying, API design, UI/UX, and more.
You will have the opportunity to create solutions that make it seamless for a user to get data from a device and use that data to do something really interesting and impactful. The current tech stack consists of Golang, MongoDB, GCP, Azure, and gRPC.
Any interest? Please reach out to me directly at Matt.Leva@Viam.com or apply at https://grnh.se/097d67da4us
We’re building the fastest way to fight doxxing and digital stalking. Kanary automates data removal requests, fixes social media settings, and prioritizes expert recommendations. All from the privacy of your device.
Join our team of 8, backed by top VCs and now funded by our customers.
Open roles: Product Engineer, Android Developer, Product Design Lead, Product Manager
Details & contact: https://www.kanary.com/join-the-team
We're looking for an AI engineer with a bio background. We're building the first AI-enabled regulatory platform for drug development. The existing processes to submit regulatory submissions to government bodies is extremely time consuming and expensive (plus no one likes paperwork). We're building a SaaS platform powered by LLMs to dramtically reduce the time spent producing regulatory documents (97% reduction in current benchmarks).
Full job description and application instructions -> https://weave-bio.notion.site/AI-Engineering-Role-18f400fcc2...
Tech used: Python, C#, JavaScript, SQL, Swift
We are looking for proficient programmers to join our team to train our AI chatbots to code. You will work with the chatbots we are building to measure their progress and evaluate code. As part of the application process, you will complete an assessment. If you pass, you will gain access to ongoing projects based on the quality of your work.
More details and option to apply: https://devitjobs.uk/jobs/DataAnnotation-Back-End-Developer-...
What we’re looking for:
1. Software Engineer- Platform |REMOTE (US)| Full-time This role's primary focus will be to improve features in the existing software, troubleshoot, write clean code, and grow workflows in Golang. Experience with developing cloud-based microservices, OpenTelemetry, and Goa frameworks a plus!
Interested: Please feel free to email me at taryn@crossnokaye.com to send me your resume and/or for any questions! I look forward to hearing from you!
At Canvas, we’re working on spatial computing - using computer vision to 3D reconstruct and understand your surroundings so that software can operate over real-world spaces. We believe it will power the next generation of augmented reality and some of the key parts of virtual reality as well.
Computer Vision Engineer (3D) (Europe Remote) Computer Vision Engineer (Scan-to-CAD) (Europe Remote) WebGL Tech Lead (Europe Remote) Product Manager, Operations (Europe Remote) Full Stack Engineer (Europe Remote) Product Design Lead (US Remote)
For detailed information check out https://canvas.io/jobs.
You can also email us directly at jobs@canvas.io.
Keywords: 3D, computer vision, photogrammetry, geomatics, SLAM, Lidar
• We're building AI-powered tools that make legal work smoother, smarter, and more accessible.
• As a well-funded stealth company with usage at scale, we're looking to expand our foundational team to take it to the next level. We found our amazing first engineer on HN!!
• We're solving hard problems at scale using AI, building solutions that literally change people's lives (our first product helps an immigration law firm help their clients of domestic violence and humanitarian crisis survivors find steady footing).
• Our engineering team uses best-in-class tools and practices learned from top Silicon Valley teams - we don't take shortcuts with quality.
• As a LatAm-based product and team, we're looking for talented engineers across Latin America to join us in shaping the future of legal tech.
Remote Engineering Roles at Tram Case (LatAm Only):
• Staff Full-Stack Engineer ([https://www.notion.so/tramcase/Staff-Full-Stack-Engineer-12f...](https://www.notion.so/Staff-Full-Stack-Engineer-12f5666d7ece...))
• Staff Backend Engineer ([https://www.notion.so/tramcase/Staff-Backend-Engineer-12f566...](https://www.notion.so/Staff-Backend-Engineer-12f5666d7ece807...))
• Senior Full-Stack Engineer (Front-End Focus) ([https://www.notion.so/tramcase/Senior-Full-Stack-Engineer-Fr...](https://www.notion.so/Senior-Full-Stack-Engineer-Front-End-F...))
• Senior Backend Engineer ([https://www.notion.so/tramcase/Senior-Backend-Engineer-12f56...](https://www.notion.so/12f5666d7ece8026a46fd93bd9533cbf?pvs=2...))
• AI Engineer ([https://www.notion.so/tramcase/AI-Engineer-1ad5666d7ece80bdb...](https://www.notion.so/1ad5666d7ece80bdbc95f8a8ce93dfa5?pvs=2...))
Tech Stack: TypeScript, Node.js, Python (required for all engineers), AWS, Keywords: Artificial Intelligence, Speech to Text, LLMs, Legal Tech, Conversational AI. Apply directly through our careers page and mention Hacker News as source for faster responses :)
We’re a VC-backed, fully-remote, Daily Fantasy Sports App. We have been live for 14 days in BETA and have acquired:
• 80,000+ Unique Users • 150,000+ ticket entries • 55,000+ bets placed
What the job entails: • Building a web3 backend and integrating with various wallets and smart contracts • Building a realtime update system that react app will use to display results • Managing a system that will handle synchronization between offchain and onchain data • Integrating sports data from third party providers to our Oracle • Integrating with a software development team and working closely with a technical project manager
Skills Necessary • Typescript experience required • Node.js, Express.js and Nest.js • 5+ years of software engineering • 5+ years of Nodejs or similar development experience • 3+ years of web3 development experience • Strong familiarity with Linux/Terminal environments
To Apply: Please send resume to b@rarebetsports.io https://rarelink.rarebetsports.io/
We make the number one AI Notetaker and are hiring across the stack (rails/typescript/go/k8s/gcp).
About Fathom:
• YC W'21, raised Series A this summer, ~50 employees
• Growing 10-20% every month (ARR + Usage)
• 82 NPS, #1 app on both G2 + Zoom marketplace, 10k+ installs on HubSpot marketplace
Team makeup + culture:
• Low ego, high integrity, highly collaborative, hard working
• Senior team (10 eng), many have worked together at previous companies
• Remote but synchronous. Multiple team offsites per year
This IS for you if:
• You want to work on a product people love
• You like highly talented, experienced coworkers
• You prefer working hard and making pragmatic decisions that keep the team shipping quickly
This is NOT for you if:
• You want rest & vest
• Sprint planning is your favorite
• You being right is more important than the team being right
If interested, apply for roles here. Mention you’ve come from HN in the application!
- App team / Rails+typescript (https://jobs.ashbyhq.com/fathom.video/01619869-e031-464c-b3b...)
- Platform team / Go (https://jobs.ashbyhq.com/fathom.video/50323c12-96b2-4e6a-b8e...)
Reprompt builds AI Agents for Location. Companies like Foursquare, TomTom, and Grab use our agents keep their massive place datasets up to date.
To do this we have an internal agents platform that supports Web, Vision, Doc Reading, and self-driving browser agents.
We're 3 people now, onsite in SF and looking for an engineer who has worked with LLMs before. Our founders are both technical, and have years of experience with both startups and big tech.
Join us to build the future of location and accelerate your career.
https://www.ycombinator.com/companies/reprompt/jobs/YfQBWDH-...
Fast-track your career by joining our growing team, where you will have the autonomy to drive the company to new heights and leave an impact on an industry at the cusp of incredible change.
At Building Swell, we know construction is ushering in a new wave of industrialization. Join us in arming these modern builders with mission-critical technology to manufacture smarter buildings and address the housing shortage.
Position: Implementation Manager You are: someone deeply curious, constantly looking to learn the "why" behind customer actions. You care about helping customers unlock their own potential and leverage best implementation practices to leave a real impact. You’ll be driving the direction of customer implementation, support, and user research; shaping the future of the company and the construction industry.
Position: Sales Development Representative You are: someone deeply curious, constantly looking to understand customer pain points and business challenges. You're a natural communicator who thrives on building relationships through outbound prospecting. You care about helping potential customers see the value in our solutions and can effectively communicate how our technology addresses their needs.
Location: USA or Canada
If interested, please reach out at careers at buildingswell dot com
Specifically, we're looking to make our first SRE hire at the intersection of Kubernetes and MacOS virtualization.
We're also looking to hire a team of developers (including a lead) for migrating our back-office admin and GraphQL API from a mix of TypeScript and PHP to Django. You can apply to either the IC or lead role through the "Automation Engineer" posting.
DeviantArt was founded in 2000 and has been a part of Wix since 2017. It is the largest online social network for artists and art enthusiasts. For emerging and established artists, DeviantArt is the foremost platform to exhibit, promote, and share works with an enthusiastic, art-centric community. We have over 86 million registered users worldwide, and our users -- lovingly referred to as “deviants” -- upload tens of thousands of original pieces of art every day, from more traditional art like painting and sculpture, to digital art, pixel art, films, anime, and AI art.
We're looking to add another to our very small remote distributed DevOps team. The DevOps team performs all tasks normally inclusive of SRE/DevOps/Infrastructure Engineers, with a bit of database administration mixed in. We are responsible for the day-to-day management of large-scale, mission-critical production systems that run on a public cloud. We automate, manage, and maintain the global infrastructure that makes DeviantArt tick. We respond to and mitigate all system issues. We develop and support the developer environment, and build and maintain CI/CD pipelines. The job lists the location as Kyiv, and although going into an office could be an option, preference would be for 100% remote.
This job requires an on call rotation, and needs a generalist knowledge of a large complicated site infrastructure, excellent linux command line skills, some database skills, and an enjoyment of troubleshooting and solving complex issues, sometimes during system events and outages.
We take our work seriously, but don't take ourselves too seriously :) Come work with us, enjoy remote flexibility, have fun, and build neat things.
https://careers.wix.com/position/oracle-2f398303-1f68-52ba-9...
Muck Rack is the leading SaaS platform for public relations and communications professionals. Our mission is to enable organizations to build trust, tell their stories, and demonstrate the unique value of earned media. Muck Rack’s AI-powered, comprehensive, and integrated platform streamlines the PR workflow to help businesses generate positive media coverage, monitor mentions to manage brand reputation, and analyze PR’s impact on business outcomes. By combining media database, monitoring, and reporting into one dynamic platform, we empower teams to collaborate seamlessly, pitch effectively, and analyze results faster and more efficiently.
Founder-controlled, fully distributed, and growing sustainably, Muck Rack has received several awards for its unparalleled culture and product from organizations like Inc., Quartz, G2, and BuiltIn. We value resilience, transparency, ownership, and customer devotion, and infuse these values into everything we do.
We’re looking for a Senior Machine Learning Engineer to join our quickly growing team and make a big impact.
As a Senior Machine Learning Engineer in the Tech org, you’ll work closely with data scientists, software engineers, product managers, and designers, to develop Machine Learning technologies which help simplify the jobs of our users. You’ll work on major technical projects with large data volumes, lead the building of new features, and help shape our engineering culture and processes. Our technology team is focused on scale, quality, delivery, and thoughtful customer experience.
To be set up for success in this role, you’ll need to have: - 5+ years total professional experience building Machine Learning products within user-facing software apps - A capacity for a high degree of autonomy and out-of-the-box thinking - A commitment to collaborating closely with other engineers and across functions
If any of the below also describe you, this could be an exciting opportunity: - Worked on a complex, high-traffic site at a startup or software-as-a-service company, ideally with large amounts of data - Experience with text modeling, NLP, and large language models - Experience serving GPU-intensive models in large-scale production environments - Interest in search - Interest in journalism, news, media or social media
PermitFlow’s mission is to streamline and simplify construction permitting in the $1.6 trillion United States construction market. Our software reduces time to permit, supporting permitting end-to-end including permit research, application preparation, submission, and monitoring.
We’ve raised a $31m Series A led by Kleiner Perkins with participation from Initialized Capital, Y Combinator, Felicis Ventures, Altos Ventures, and the founders and executives from Zillow, PlanGrid, Thumbtack, Bluebeam, Uber, Procore, and more.
Permitting is a challenging yet interesting problem; thousands of municipalities across the United States have their own processes and requirements - many which are continually updating. Software, AI, and LLMs provide an exciting opportunity for us to reason at scale and distill a nuanced and localized permitting process into a standard and streamlined experience for our customers.
We're looking for customer-obsessed, ambitious, and hard-working teammates who are excited about solving a real-world problem with technology at its helm.
NYC Onsite Roles | apply at: https://jobs.ashbyhq.com/permitflow?departmentId=d33195eb-89...
1. Staff Software Engineer - $200K-275K + equity
2. Fullstack Software Engineer - $125-240K + equity
3. Senior Frontend Engineer - $125K-240K + equity
Check out the role here:
https://www.lumafield.com/careers/job?id=b208427e-6066-4c58-...
And learn more about Lumafield below:
Lumafield was founded in 2019 to upgrade manufacturing.
We are engineers with deep experience across the product development cycle, from initial ideas to shipping hardware, across industries and specializations, who became frustrated by the cost and complexity of modern manufacturing. So we decided to upgrade it.
Engineers make million-dollar decisions every day, and they need tools that give them the greatest possible insight into their products. By offering unprecedented visibility into products, as well as AI-driven tools that highlight problems and generate quantitative data, Lumafield promises to revolutionize the way complex products are created, manufactured, and used across industries. We started with industrial CT scanning, which for us was the most valuable but underutilized tool in the manufacturing toolbox, enabling us to rapidly inspect essential components non-destructively.
We rebuilt the whole system, from X-ray capture, to computer vision analysis, to web-based collaboration, to the entire business model, making the most advanced manufacturing tech more accessible to every industry. Our company, like our platform, is designed for upgrades. We’re building for greater intelligence, autonomy, and speed. For deeper vision, operational excellence, and powerful insights. And then we'll upgrade it all again.
Lumafield is headquartered in Cambridge, MA, and has an office in San Francisco, CA.
Coder is an open-source, remote-first software company. Our CDE moves development from local machines to cloud infrastructure, reducing onboarding time while speeding up builds, tests, and workspace configuration for individuals and large dev teams. The developers that we support work at companies like Discord, Dropbox, and Palantir.
[1] Senior Open Source Engineer (US/Canada, Remote) [2] Software Engineering Manager (Poland, Remote) [3] Security Engineer (US/Canada/Poland, Remote)
Careers page w/ more information + salary bands: https://coder.com/careers?utm_source=O2n5Ew72WD
I support all recruiting for our R&D team, you can reach me directly at connor.brim@coder.com.
Join us in building Ameba, an AI platform that turns supply chain noise into knowledge.
If you've never considered working in supply chains before, everything around you, including the device you're reading this on, has a story of how it got there. From raw materials to the final product in your hands, that story is its supply chain.
If you're the kind of engineer who thrives on solving novel challenges, such as building modern data pipelines to construct a supply chain from unstructured communication streams, Ameba offers you the opportunity to build from first principles in a greenfield space.
We're a seed startup made up of experienced entrepreneurs (who have previously raised $160m+, built supply chains for 30+ brands) and builders (formerly at Meta, Microsoft, Snap, Apple & Palantir). We have big ambitions and are backed by the best investors in Europe, having raised over $9m since our launch just over a year ago — and we're just getting started.
If you're interested, please email me directly via craig (at) ameba (dot) ai with [HN] in the subject. Note we are currently unable to sponsor visas.
CEMIT is a data intelligence company with ambitions to lead a digital transformation of the railway industry globally. As a scale-up supported by top-tier investors, we are a dynamic and customer-centric organization with R&D at the core of our DNA. Our platform collects data from trains or tracks and uses machine learning and analytics to provide real-time insight into the health of the trains and tracks to drastically improve maintenance efficiency and rail uptime. Together we are leading an intelligent shift that will increase the reliability, affordability, and efficiency of rail transportation, enabling a greener future.
Today we collect data from more than 40,000 km of railway every day, positioning us at the forefront of data intelligence for the railway industry. By winning Eurostars in 2022 we were recognised as the most innovative SME in Europe among 432 finalists.
Full Job Description and application form here: https://cemit-amby.teamtailor.com/jobs/5591191-fullstack-eng...
Please bear in mind we can't currently support relocation or visa obtaining, therefore you should be located in and have a valid work permit for Norway
Puraite is building an AI-powered research platform for the pharma, biotech, and medical research industries. Our goal is to automate systematic literature reviews, drastically accelerating evidence-based decision-making.
We're looking for a Frontend Engineer to help shape an intuitive UI that simplifies and accelerates a complex workflow.
What we're looking for:
- Experience with modern frontend technologies
- A strong sense for clean UI/UX design
- Interest in AI, medical research, and data-driven applications
What we offer:
- 18-month contract (hired via Paderborn University)
- Salary up to TV-L 13 (German public sector pay scale)
- Flexible hybrid working
We strongly believe that diverse teams build better products, so we especially encourage applications from women and candidates with diverse backgrounds.
If this sounds like you, or if you know someone who'd be a great fit, reach out!
Send me an email at karlson # puraite.com
Forward is building the next evolution of embedded payment capabilities for SaaS companies looking to monetize their platforms. We're growing rapidly and looking to add a talented frontend or full-stack engineer to our team. Ideally we're looking for someone with Nextjs and design experience to create a library of embeddable payment widgets.
I'm happy to answer any questions or provide more details, please email me at amays # getfwd.com.
We're on the hunt for a frontend engineer to join our team of product and engineering people spread across Australia (our home base is Melbourne but you can work from anywhere).
What you'll be working on is pretty exciting - we're building with React and TypeScript, including canvas-based interactions and custom domain-specific language editors, we have lots of challenging UI work to do.
We are a well funded, profitable company, with 20 years in ICM, we have a global customer base across Australia, Asia, Europe, and the US in 25+ industries.
Link if interested: https://www.performio.co/careers?gh_jid=4447789006
At OpenBCI we are building the next generation of high-quality human-computer interfaces. We are a growing team of ambitious engineers, designers, and scientists. We are on the lookout for an experienced Software Developer with a passion for biosensing, brain-computer interfaces, and platform architecture. The Lead Software Developer will be responsible for managing a team of talented engineers and guide the creation of new and existing OpenBCI software products.
We are a stealth-mode cyber and AI startup in California, backed by top-tier VCs and industry-leading angels from the top of the cyber industry. Founded by cybersecurity experts from Microsoft and Tesla, our team is on a mission to redefine the industry with breakthrough products that deliver entirely new capabilities in the cyber realm.
We’re seeking a founding team member who is a true code guru—a developer who can transform ideas into scalable, high-performance systems from the ground up. In this role, you will be responsible for end-to-end development, setting technical standards, and ensuring that our codebase reflects top-tier design patterns and best practices.
See more details and apply here: https://www.linkedin.com/posts/activity-7302447341729370112-... or Yoni@nebari.ai
We're building a virtual-first headache and migraine clinic, making expert care more accessible for the millions of people who suffer from these debilitating conditions. As part of our team, you'll work closely with our co-founders, operations and clinical teams to shape the future of telehealth.
We've built our platform using Elixir, Phoenix and LiveView on AWS, with infrastructure as code managed through Terraform and CI/CD via Github Actions. We leverage Postgres for a variety of purposes. Our philosophy emphasizes simplicity and pragmatism and our culture is rooted in empathy, creativity and focus.
See more details and apply here: https://www.havenheadache.com/careers?utm_source=4RbDKozYoE
We are making autonomous testing platform that finds bugs in your software with perfect reproducibility to help you fix them.
Please apply here https://antithesis.com/company/careers/
Open roles:
- Senior Software Engineer
- Website Engineer (I review every application)
- Graphic Designer - Brand & Marketing (I review every application)
- Technical Recruiter
- Senior Consultant
- Customer Success Manager
Absinthe Labs is making loyalty markets more efficient. With over 20M visits and 2M+ users since our founding in 2022, we built the first Web3-native customer data platform that powers points programs across the digital landscape, and we’re now seeking a Senior Full-Stack Engineer to expand our capabilities, integrating complex backend logic with seamless frontend experiences.
Role Highlights:
Platform Development: Design and build user-centric interfaces for incentive designers using Radix UI, Tailwind CSS, and Next.js, ensuring scalable backend services using Node.js and GraphQL. Data Architecture & APIs: Develop data pipelines, integrate with Hasura (GraphQL), PostgreSQL, and optimize our server-side logic for high-performance data retrieval. Dynamic Builder Tools: Engineer zapier-like interfaces for configuring data sources and build a WYSIWYG loyalty portal editor. End-to-End Product Ownership: Architect, deploy, and maintain services across the stack, ensuring secure SSR and seamless API interactions.
What You Bring:
Experience: 5+ years in full-stack engineering, ideally in B2B saas, Fintech, or Web3 consumer apps. Frontend Mastery: Strong experience in React, Next.js, and transforming Figma prototypes into polished UIs using Radix UI, Tailwind CSS, and shadcn. Backend Expertise: Proficiency in Node.js, GraphQL (Hasura), PostgreSQL, and designing secure, scalable backend architectures. Cloud & Security: Familiarity with AWS (Amplify, Cloudfront), containerization (Docker/Podman), and security best practices (e.g., CORS, CSP). DevOps & CI/CD: Experience with automating deployments, optimizing database queries, and maintaining a smooth developer experience using modern CI/CD pipelines. Startup Agility: Thrive in a fast-paced, impact-driven environment.
Why Absinthe Labs?
High-Impact Work: Join a tight-knit team shipping Web3 loyalty infrastructure that directly influences millions of users. Flexibility: Work remotely or from NYC Hybrid. Compensation: Competitive salary (region-based) + equity in a high-growth Web3 startup.
Apply Here: https://absinthe.network/careers#open-positions
We are a Machine Learning consulting company that builds end-to-end Machine Learning solutions. By applying the latest AI research, we keep our clients at the forefront of innovation. If you are interested check out: https://www.ml6.eu/knowledge-hub/blog and https://www.ml6.eu/customers/cases
Work on innovative projects for the biggest clients across Europe such as Randstad, ASML, FUNKE, and many more! Whether it’s about leveraging LLMs to improve customer support, building data lakes on cloud platforms to improve storage or implementing models using sensor data for quality control. You can find it all at ML6. You will mostly work with Python and a range of ML frameworks such as TensorFlow, PyTorch, or HuggingFace Transformers to solve hard Machine Learning tasks and help bring these application into production by building data pipelines and cloud infrastructure on all of the major cloud providers (GCP, AWS, Azure).
Open roles include:
• Senior ML/Data Engineers
• Senior AI Consultants
• Senior AI Project Managers
• Industry Directors
• Junior ML/Data Engineers
and many more!
Apply now at the https://jobs.ml6.eu/
Pulumi simplifies managing cloud infrastructure. Pulumi's Infrastructure as Code (IaC) platform enables developers and infrastructure teams to define, deploy, and manage cloud resources using familiar programming languages like Python, TypeScript, Go, .NET, Java, and YAML.
Engineering
Engineering Manager - Ecosystems, Engineering Manager - Cloud AI, Engineering Manager - Pulumi ESC, Principal Software Engineer - Ecosystem, Principal (and Senior) Software Engineer - Languages and SDKs, Principal Software Engineer - Secrets, Senior Frontend Engineer, Senior Software Engineer - Insights
Product
Principal Product Manager - IaC Platform, Principal Product Manager - Insights, Principal Product Manager - Shared Services
For full details and to apply, visit our careers page: https://www.pulumi.com/careers/
At LiveKit, we build open-source APIs to power the future of computing. We are a company of engineers building software stacks for other engineers.
Hiring: -Software Engineer, Agents : https://jobs.ashbyhq.com/livekit/1757f49e-7e19-4c45-85f7-e46... -----Software Engineer, Agents Hosting: https://jobs.ashbyhq.com/livekit/f152aa9f-981c-4661-99d3-683... ---------Developer Success Engineers: https://jobs.ashbyhq.com/livekit/cebe68cf-5a6b-470b-a036-560...
What we are looking for: -BUILDERS!!!! --Passion for building something truly impactful, curious ---Experience building LLM-based applications --Working with Python, Node and Rust
cofounders: Russ D'sa, CEO and cofounder: https://www.linkedin.com/in/russelldsa/ David Zhao, CTO and cofounder: https://www.linkedin.com/in/davidzhao/
We are Toontown: Corporate Clash, an entirely not-for-profit MMORPG that is a fan reimagination of Disney's defunct MMORPG, Toontown Online. Besides continuing the legacy of Toontown Online and bringing the MMO into the 21st Century, we also use our original IP to [raise funds for charities](https://corporateclash.net/news/article/155) - we have raised over $54K for children's health and LGBTQ+ charities.
We are on the lookout for a broad range of talents, from Tech to Art to Community Management! Everybody on the team is a volunteer - there is no salary, we do not solicit donations and all expenses are funded by our staff. We pride ourselves as being a training ground for up-and-coming talent to gain experience working on a real product in a 100+ strong team; some of our volunteers have used their experience with us to land jobs in and out of the industry.
We have lots of interesting tech problems that arises from building on top of a 20+ year old codebase (yes, Toontown development started out on Python 2.0!). We are especially interested in people with an interest in distributed systems, system administration, game physics and automation pipelines!
You can see all of our positions and how to apply here (when emailing us, feel free to say HN): https://corporateclash.net/help/apply
How much you want to contribute is up to you; our volunteers typically contribute 5-10 hours a week.
NOTE: You can ignore the 3-month in-game activity requirement, it's being revised soon!
We’re looking for a highly responsible and independent full-stack engineer to join our team in a startup operating within the music industry.
This engineer isn't just a coder: we are looking for a leader, someone that provides solutions, that can deliver but also propose different technical approaches to the challenges.
+ React & Node.js codebase with high ownership over features and improvements;
+ Maintain high coding standards, ensuring clean, scalable, and well-documented code;
+ Help untangle and improve the current environment and processes;
+ This role will closely work with the Product Manager;
+ Take responsibility and proactively report progress;
Feel free to contact me at ricardo@infinitycloud.pt, drop me your CV and I'll get back to you.
Command Zero is looking to revolutionize the way organizations conduct cyber investigations. We're seeking an experienced back-end developer to help design, build, and maintain our Go-based back end. An ideal candidate has 3-5 years of (recent) experience in building production code in Go.
For more information, see https://www.linkedin.com/jobs/view/4169587096/ Feel free to send a resume directly to jobs@cmdzero.io.
We are a small (~35), fast-growing (tripled revenue last year) team building a unified API for HR systems. We are looking to hire an engineering manager to help us manage one of our product squads.
I haven't yet finished writing the job spec but I still wanted to put this out there already for the HN hiring thread. You can get a feel for what our engineering culture is like based on the job posting of our Product Engineering position: https://jobs.ashbyhq.com/Kombo/5446702e-cf0b-4a53-9400-0be2d...
Feel free to contact me at arne@kombo.dev - I'm the CTO and leading the hiring process!
Kagi founder here. I am looking for a wingman to help expand our footprint.
Kagi on HN: https://hn.algolia.com/?q=kagi
Details: https://kagi.peopleforce.io/careers/v/108201-head-of-busines...
Curipod founder here.
Curipod is the all in one platform for teachers to plan and deliver AI native interactive lessons that prepare kids for the 21st century.
900k+ Monthly Students and growing fast.
Most of the engineering team are former founders and CTOs. Join us to redefine how classroom lessons are done natively with AI.
Apply here: https://curipod.notion.site/Product-Engineer-ab56cf80eadc45c...
We're hiring for multiple software engineers to help tackle one of the most important sectors for the global economy: maritime shipping.
Nearly every person is affected by stuff shipping on the seas - whether its energy, ore, or wind turbines, but the industry itself is antiquated and archaic, and hampered by paperwork and bureaucracy. Our customers are crying out for better solutions. We're looking for people to help us build those solutions.
If you're the sort of person who is - intellectually curious about new industries - wanting talking to and getting close to end users - keen to use LLMs and other AI tools - proficient in functional programming - biased towards shipping software
Then please get in touch.
Our tech stack for new projects is largely typescript/vue/mysql (we have several fans of fp-ts and EffectT with us and would like some more). But like the industry at large we also have significant legacy code in javascript. If you're the sort of person who likes refactoring complex projects to make them more workable, then we also want to hear from you.
We hire remotely and globally with offices in Houston, London, Singapore, and Joinville (Brasil). You should be fluent in English. The current team is >20 people.
Interested? You can contact me directly from my profile. I'm the CTO.
Please, no recruiters or agencies.
We’re hiring across our Python teams to build the infrastructure for predicting the future of energy markets.
https://www.second-foundation.eu/position/python-developer
We have other roles as well, for Quants, Traders and Kotlin developers.
MongoDB Atlas is a multi-cloud developer data platform that simplifies how developers work with data.
We’re hiring a Site Reliability Engineer to join our Developer Infrastructure team. Our team supports the broader SRE organization by:
- Building and maintaining container images, OS packages, and infrastructure tooling - Managing internal Terraform workflows - Handling cloud resource provisioning across AWS, GCP, and Azure
This is a full-time, remote role for candidates based in the US. Prior familiarity with bazel, Go, Terraform, Argo and GitHub Actions would be helpful.
If you’re interested, apply at https://www.mongodb.com/careers/jobs/6168913 (ignore JD and mention your interest in the "SRE DevInfra" team in your cover letter/note and the talent partner will route it to the team)
There are other roles in the same organization listed here if you search for 'New York': https://www.mongodb.com/company/careers/teams/engineering
Spec is redefining how the world's largest brands fight online fraud. Our first-of-its-kind technology detects a cybercrime by scanning Internet traffic in motion, enabling online ticketers, retailers, and marketplaces to proactively identify fraudulent users and bots.
We're searching for a Cloud Infrastructure(senior/staff) to join our team in building the cloud platforms and infrastructure that are revolutionizing the fight against online fraud.
Apply here: https://job-boards.greenhouse.io/spec/jobs/4049807007
Please mention that you saw this post on HN when applying!
TerraAI is trying to tackle climate change by helping the world hit its electrification goals via copper extraction.
In the same way image generators have shown the remarkable ability to produce a diverse set of realistic pictures conditioned on a text prompt (and other inputs), we are developing a generative model that produces 3D geological models conditioned on geophysical surveys, bore hole measurements, and other forms of physical observation. The outputs of the generative capture what we know and don’t know about the state of the subsurface, allowing explorers to make maximally informed decisions about how and where to explore for critical resources.
We are looking for a talented deep learning engineer or scientist to lead the development of this model that will revolutionize decision making in the earth subsurface for a wide range of clean energy applications.
Apply here: https://jobs.ashbyhq.com/terraai?utm_source=ankjvVkzlx
We are hiring across multiple positions in both engineering locations. Evervault is a VC Funded (Sequoia, Kleiner, Index) Payments & Data Security infrastructure company utilizing encryption to process the most sensitive data on the internet.
Product Engineer London https://evervault.com/careers/software-engineer
Senior Engineer (Payments) https://evervault.com/careers/senior-software-engineer
More non engineer roles are also open: https://evervault.com/careers
Arista Networks has multiple open positions the following roles which require C++/python systems programming experience on Linux:
https://www.smartrecruiters.com/AristaNetworks/7440000010863...
https://www.smartrecruiters.com/AristaNetworks/7440000434896...
https://www.smartrecruiters.com/AristaNetworks/7440000432106...
We also have one open position for a k8s systems engineer:
https://www.smartrecruiters.com/AristaNetworks/7440000432176...
Please mention you saw the openings on HackerRank when applying. You'll find more open positions in our Careers page.
Alpaca.Markets | REMOTE (APAC, Japan preferred) | Senior Software Engineer, Trading Team | varies on location
Alpaca [0] offers brokerage APIs that let you (and your customers) trade various financial instruments all around the world. We're currently hiring for two teams: our crypto team and our trading team.
We're looking for senior candidates who like shipping. Our hiring philosophy is to bring in the right people, pay them well, and give everyone meaningful work to do.
Alpaca as a whole is about 50 engineers. We're primarily golang microservices on top of kubernetes, but we'll use whatever tools are best to get the job done and satisfy our customers. To get an idea for the kind of work we do, check out what we shipped in 2024 [1].
Crypto application: https://boards.greenhouse.io/alpaca/jobs/5319640004
Trading application: https://boards.greenhouse.io/alpaca/jobs/5389104004
Any questions, feel free to email me peter.downs @ alpaca.markets.
[1]: https://alpaca.markets/blog/alpaca-2024-year-in-review/
Layer Health is an AI/ML startup spun out of MIT by David Sontag, leveraging LLMs to transform how clinical data is understood and used. Our systems are actively deployed in life science companies and major healthcare systems, providing an AI layer for our customers to make sense of their health data, and ultimately help positively influence patient outcomes. We're now exiting our seed stage after successfully raising our Series A and are building the team to meet the needs of our growing customer base.
Work Location: HYBRID in Boston (back bay) or NYC (grand central) Headcount: 12 total / 8 of them are engineers
Stack: mostly React + Typescript Frontend / Python Backend // GCP
Open Roles (note that all roles require a MINIMUM of 4 years of work experience) * Backend Engineer (Product & Infra) * Fullstack Engineer (Frontend) * Data Scientist * ML Engineering * Research Engineering * Research Scientist (PhD's) * Product Strategy * RWE
Email me at mike-c@layerhealth.com for more info!
Chroma is building the memory layer for AI applications. It's an open-source vector database, with multi-environment support from a local DB to a unique serverless architecture. We just launch a re-written version of our product in Rust, and also work in Typescript, Next.js, Go, and Python.
We're hiring for these engineering areas:
- Infrastructure
- Production engineering
- AI tools engineering
- AI Engineer - Tools & Support, focused on developer support
Apply here: https://jobs.ashbyhq.com/trychroma/9ed3aee8-07dd-44e3-9ca1-d...
More details at: https://careers.trychroma.com
We're bringing currency back to cryptocurrency. We care a LOT about UX and are at the forefront of chain and account abstraction. We’re making crypto actually usable as a currency and not just a degenerate gambling fiesta.
We are VC-funded ($1.4m pre-seed), advised by heavyweights like ex-venmo CTO, and founded by Harvard alum.
Apart from Project Manager, we have some other roles we're hiring for. Review and find them here: https://peanut.to/jobs (and list HN as the place you learned about us!)
We are hiring a data platform engineer who will work on platforms that accelerate the transition to carbon-free energy. Return’s main activities are building and operating industrial-size Battery Energy Storage Systems and solar plants. Our operations are located in the Netherlands, Germany, and Spain.
You will be making a measurable (country-level) impact on the transition to renewable energy.
The tech team members have co-founded several companies and/or have experience with remote development teams since 2008. They will personally help you through most of the recruiting process (there is no recruiter involved).
If you call yourself an SRE, DevOps engineer, or a backend engineer, you are also more than welcome to apply!
More info at https://jobs.polymer.co/return/32535 or https://jobs.polymer.co/return for all open positions.
Join us in pioneering the future of e-commerce search. 1M+ MAU growing rapidly. $10M+ raised from top-tier VCs and individuals with backgrounds from Google, Amazon, OpenAI, Stitch Fix, Whatnot, Stripe, and more.
We're a hard-working team of 5. We have a new office in Jackson Square with a great view that we're looking to fill with other high-performance people!
Tech-wise, it's primarily Clojure, if that's interesting (no worries if you haven't used it). We've also built our own graph db to cope with the scale, and the foundations of a neuro-symbolic AI agent that learns more about the world on every search!
Job posting and more information here → https://careers.onton.com
We read and respond to every application.
We need your help to scale up our cloud based, AI testing software startup and put our 40M Series C raise to work.
We’re a 100% serverless operation built on Google Cloud Platform that rapidly develops and deploys features on a CI/CD model. Seven years in, we’re a Gartner recognized industry player and growing our engineering ranks to keep building out our platform.
Our open positions:
- Software Engineer - Mobile Infrastructure (Onsite / Hybrid US)
- Software Engineer - Integrations Team (Remote India)
Our stack is built with modern Java 17, TypeScript, and Infrastructure as Code
Drop me (an engineer), any questions joe at-symbol mabl.com, and checkout our careers site [1]. We can’t wait to work with you.
Dev tools company with 180,000+ users. $15M in funding from Vercel CEO, GitHub CTO, Cloudflare CEO, etc.
We're building an AI-powered flight recorder for web apps – so anyone can report issues to engineers in a way that's actually debuggable (w/ console, network, websockets debugger, etc).
Small, senior team – several ex-engineering directors turned ICs (mostly ex-early Cloudflare). Looking for staff-level engineers with experience building highly performant front-end apps.
Stack: React/Typescript and MobX (MST) on the frontend, and Node/GraphQL across our backend.
As a dev tool, developers at Jam are directly connected and involved with the product. Your usage of the product will directly inform the direction of Jam's future.
Apply here (we read and respond to every submission): https://jam.dev/careers
Mountain View, CA Preferred / REMOTE (US)
ReSim is on a mission to revolutionize robotics development by building the ultimate virtual testing platform. We empower autonomy teams to scale simulation for their robots, helping them accelerate their progress and impact. We're looking for an Application Engineer to join our Professional Services team to help onboard and support our customers in integrating ReSim into their workflows. You'll work with some of the leading robotics companies in the world helping them move faster and make better robots. You'll also help develop the product across the stack to deliver customer requests.
This role is perfect for someone who thrives at the intersection of technical expertise and customer engagement. Our ideal candidate will have:
- A love for robotics or simulation.
- Strong skills in Python and/or C++
- Experience with Docker, modern CI/CD systems, and Bazel
- Passion for creating intuitive APIs and working with customers
If you're interested, you can read the job description (https://www.resim.tech/application-engineer) and apply at jobs [at] resim.ai with your resume and some examples of relevant experience.
* open source, building a dev tool. We have a public handbook (posthog.com/handbook) if you want to learn how we work, pay and more in complete detail.
* we are growing through more autonomy and transparency not through process.
* we have a ton of scale and a bunch of super interesting technical problems to solve
* we're building 20 more products over the next couple of years, so you could end up building one of those
* we need: product engineers, a cracked clickhouse engineer to help automated and run our PB scale clickhouse cluster. A hybrid product analyst/product manager combination posthog.com/careers
We're all about the backend! As a fully remote Python software house, we comprise a small, agile team of senior engineers, each with at least five years of experience. We're known for delivering stable solutions and always accounting for edge cases, minimizing the need for urgent fixes.
- Full Remote Flexibility: Work from anywhere.
- Flexible Hours: Pick your own hours.
- Dynamic Projects: Work with startups globally on projects of your choice.
- Influence: Contribute to decisions and influence how we operate thanks to the Sociocracy 3.0 framework.
- Personal assistant for your non-work tasks.
- Multicultural environment with a voice for everyone.
Who Are We Looking For? Experienced Python engineer with at least 5 years of programming (not necessarily professional), including at least a year with Python. Must have a deep love for Python and the ability to come up with Pythonic solutions to problems.
How to Apply: We don't care about CVs. Just go to https://careers.reef.pl/ and see what we're all about!
Contact: Email: hiring@reef.pl Company Website: https://reef-technologies.com/
Interested in getting into the FinTech space? We're looking for killer typescript react / C# devs to help us build our trading EMS web application. Must be seasoned and able to work independently, we're an small series A startup, moving very fast and it's quite chaotic, please don't apply unless you really can handle complex end-to-end features across the front-end/back-end yourself. 5 years+ building real complex things.
Email: rick at adroit-tt dot com with resume
A trillion dollars in GPU compute power will be deployed this decade. We are building the framework and tools that will enable them to operate at full capacity. We are looking to expand on our engineering side and are interested in hiring people who can demonstrate proficiency in writing C/C++ code, CUDA, Python and a good understanding of a GPU internal operation.
No bullshit interview process. I would probably talk to you for around half an hour about what you’ve done related to this. I may ask to see some code you’ve produced in the past. No take-home assignments. If there’s promise, you may be asked to work one or two weeks with us, paid.
If you are a student or just graduated, we have a couple internship spots. We don’t mind training people if they show strong interest and adequate fundamental skills.
Email: hn @ moralestapia . com
We're looking for a senior / staff / principal frontend software engineer (8+ years of experience) who excels at solving complex problems and delivering solid performance. You'll develop software for a system that serves thousands of users, with enterprise-grade requirements on robustness and reliability.
Requirements: Expert knowledge in JavaScript/TypeScript and React; excellent writing and communication skills. Bonus skills: Expo/React Native, Puppeteer / Playwright, AWS, Terraform, PostgreSQL Python. Minimum 10 years of experience required. Location: remote or Berlin, start date ASAP.
26 days of paid vacation + German public holidays (totaling 38 days). Fully remote work environment with three offsite events per year around the world.
Reach out to hnhiring [at] cogram [dot] com
A career at Rockstar Games is about being part of a team working on some of the most creatively rewarding and ambitious projects to be found in any entertainment medium. You would be welcomed to a dedicated and inclusive environment where you can learn, and collaborate with some of the most talented people in the industry.
RESPONSIBILITIES
Develop highly scalable server-side features for our online game console clients using object-oriented development in C#, ASP.NET, and SQL Server.
Develop back-end services and APIs. Actively practice Test Driven Development (TDD) while developing new features and refactoring existing code.
Work in an AWS cloud-based, event-driven microservice architecture with a high priority on web performance optimization.
Collaborate with other Rockstar technology teams across our worldwide studios.
New York: https://grnh.se/01daf4583us
San Diego: https://grnh.se/87116de23us
New England: https://grnh.se/3d1c2f9a3us
You can see our other openings here: https://www.rockstargames.com/careers/
We're a small team of 4, but scaled to $1M+ in ARR across ~200 customers and recently raised $5.6M from YC and the founders of Posthog, Algolia, Showpad, Shipbob, etc.
We're building the entire data stack of a marketeer in-house and deeply integrated. This offers them a 10x better product experience to understand where they're acquiring customers from.
Our infra processes ~4000 jobs/s and billions of $ in e-commerce transactions. We're building realtime data pipelines and complex data analysis tools -- lots of interesting challenges.
Have a look here for more info - https://jobs.gem.com/converge/am9icG9zdDreA6I3WJ4ZJ1Yx_WHS5z...
Tech Mahindra is looking for senior software engineers to help build cutting-edge Cloud Platform Engineering solutions for our customers. If you have a strong software engineering background and are passionate about DevSecOps, Observability, and FinOps, we'd love to hear from you!
What you'll do: Design, develop, and implement scalable cloud platform solutions Build automation frameworks for DevSecOps, CI/CD, and security best practices Enhance observability and monitoring for high-performance cloud systems Drive FinOps strategies to optimize cloud costs and improve efficiency Work with modern cloud-native tools like Kubernetes, Terraform, Prometheus, OpenTelemetry, AWS/GCP/Azure, and more
What we're looking for: Strong software engineering experience (Python, Go, Java, or similar) Experience with Cloud (AWS, GCP, Azure) and Infrastructure as Code (Terraform, CloudFormation, etc.) Deep understanding of DevOps, security automation, monitoring, and cost optimization Ability to collaborate in a fast-paced, remote-friendly environment
Why join us? Work on high-impact cloud platform engineering projects Solve complex challenges in DevSecOps, Observability, and FinOps Be part of a growing team that values innovation, automation, and continuous learning
Interested? Reach out at cprabala@techmahindra.com
Python essential
We are looking for an experienced Software Engineer to help accelerate our AI backend. We'd like someone who can jump in and accelerate/own large components of the development.
For someone London based, this could very likely turn into a FT role. Must have highly relevant experience and strong references.
Please share your details at https://www.linkedin.com/company/seadotdev/
Are you a great coder (Python/Typescript, but great skills are transferrable) with a solid foundation in the LLM/ML world? Are you well versed in data engineering concepts, and excited to work with the latest GenAI models and bring these solutions into production with us? Then I'd love to hear from you!
We are a small team who care deeply about our work as well as each other. We iterate fast, and err in the side of showing a quick prototype of an idea, rather than spending hours in meetings talking about it.
Our vision for this project is extremely ambitious, and you will be a crucial part of making this a reality.
If you fit the above description, hit me up at jakob.hoppermann@abbvie.com
As a full-stack software engineer at Floryn, you’re joining us in building a fintech company which provides fast and easy access to credit for small and medium sized businesses. We’re somewhat like a bank, but without the bureaucracy and the white collars. You’ll be working at a landscape of applications that are responsible for wiring millions of euros, daily, directly into our customer’s bank accounts.
We are looking for both junior and experienced software developers. Software stack: Ruby on Rails, React and React Mobile, PostgreSQL, Docker and AWS.
Find out more: https://jobs.floryn.com/o/fullstack-software-engineer-sherto...
Bloomberg is hiring experienced software engineers to build high-performance infrastructure that powers real-time financial data for global markets. We process massive datasets from regulatory agencies, exchanges, central banks, and financial institutions—fueling Bloomberg products and AI-driven insights. Our work directly impacts traders, analysts, and decision-makers worldwide.
We tackle hard distributed systems problems at scale, from low-latency data processing to cloud/hybrid computing, leveraging cutting-edge open-source & proprietary technologies.
I joined Bloomberg in 2020 via its acquisition of Second Measure (YC S15) and stayed because of the challenging problems and the freedom to solve them. Bloomberg values deep technical expertise and gives engineers real ownership over impactful projects.
We're hiring for roles in these locations with 3-days in office most weeks:
Princeton/New York: https://bloomberg.avature.net/careers/JobDetail/Senior-Softw...
Portal Innovations invests in ecosystems to support life sciences entrepreneurs in different geographies in the US. We use Stargaze, our AI-toolkit for identifying and sourcing innovation to make strategic decisions around:
- Finding rising star researchers to support
- Understanding where science is headed
- Forming high-impact relationships with researchers, founders, investors, and pharmaceutical companies
As we continue to build out this "frontend for biotech innovation", we need a seasoned engineer to help us accelerate our roadmap for 2025.
Here's a snapshot of what you'll work on with me:
- Build ETL pipelines (bringing in data around publications, patents, etc.). We've made good progress here, but need someone who can get it over the finish line.
- Build an internal data infrastructure that allows us to iterate on data science experiments to create new Innovation Biomarkers
- Work with our team to evaluate and benchmark different models and pipelines to classify innovators, resolve entities across datasets, generate high quality matches for innovation search, and more
- Occasionally work across the stack (React / Next, Python, Postgres) if you're interested in branching out
You're a great fit if you:
- Have experience with Python, Postgres, and general ETL pipelines / infrastructure (AWS, Modal, Airflow)
- Take your craft seriously and own your work
- Aren't afraid of getting into the weeds
- Work well asynchronously but appreciate the occasional meeting to iron out any blockers
Bonus points if you:
- Enjoy reading about machine learning & data science or have trained and deployed models in the past
- Have an interest in the biotech innovation space
Drop me a note at ashish.uppala@portalinnovations.com if you're interested, or know anyone that'd be a good fit :)
Exnaton is a start-up spun out of ETH Zurich, which offers software for renewable energy to utility companies. Our software enables energy providers to set up energy communities and smart energy tariffs in their distribution areas. Users of our software can track their energy consumption and buy renewable energy from their neighbors, which makes investing in the energy transition simple and fun!
Fullstack tasks:
- Developing a state-of-the-art application for the energy sector;
- Building highly reliable software and operating customer deployments;
- Working as part of a team of highly motivated and talented individuals and take ownership and responsibility of components in frontend and/or backend from conceptualisation to production.
DevOps tasks:
- Ensure reliability and scalability of our software deployments for high availability and performance;
- Improve the efficiency and transparency of our development pipeline by streamlining workflows and automation;
- Optimize cloud infrastructure with efficient server provisioning and multi-tenancy architecture;
- Manage our AWS infrastructure & CI/CD pipeline by overseeing cloud resources and automating deployments;
- Enhance monitoring and logging of our different services and deployments to improve observability, quickly detect, diagnose, and resolve system issues and identify root causes;
- Improve and leverage our microservices architecture for scalability, efficiency and security;
- Strengthen system security by implementing best practices and improving access controls.
More information here: https://exnaton-ag.jobs.personio.com/job/1968833?language=en...
Sphinx Defense builds software to solve complex national security problems for America and its allies. Founded by engineers and technologists with deep experience across commercial and defense technology, we're building a vehicle-agnostic communication infrastructure to enable satellite operators to securely utilize antenna networks and maneuver satellites in real-time. We're bootstrapped, profitable, and growing aggressively.
To learn more about who we are, our engineering culture, and whether this is the right place for you, read our Key Values profile: https://www.keyvalues.com/sphinx-defense
Sr. Backend Engineer - Space Command and Control - Remote : https://grnh.se/9c9d31ef8us
Don’t see a role that aligns with your interests or don’t have the specific Space/ Command & Control experience? Apply to the general interest application and list what type of role you would be interested in : https://grnh.se/4ce199d68us
Check out our open roles: https://www.sphinxdefense.com/#careers
Keycard is on a mission to redefine machine identity for the AI Era — empowering developers to seamlessly connect people, agents, and services across networks, clouds, and applications. As generative AI and agent-based workflows grow more sophisticated, they demand real-time, adaptable access patterns. Keycard unlocks dynamic, identity-based credentials, ensuring every agent and service operates with precise, contextual permissions—creating a robust foundation for trusted AI systems.
We envision a global identity network, underpinned by open protocols, allowing distributed systems to adapt dynamically, scaling to handle complex AI workloads, and maintain cryptographically verifiable trust relationships. By rethinking secret management and machine identity from first principles, our goal is to delight developers, meet the performance demands of platform engineers, and establish new security primitives for cloud-native architectures — all in an inclusive, collaborative environment focused on consistent, high-quality execution and crafting products that developers love so much they bring them everywhere they go.
Founding Principal Engineer: https://www.keycard.sh/careers/founding-principal-engineer Founding Systems Engineer: https://www.keycard.sh/careers/founding-systems-engineer
AI Simulation and Control Engineer: Up to £150k + 2% depending on experience (https://wellfound.com/l/2AUs7A)
Backend Software Engineer (Python): Up to £150k + 2% depending on experience (reach out direct to david@optimal.ag)
Optimal builds AI agents to control the world’s critical infrastructure - from factories, to datacenters, to farms.
We are backed by the Director of AI Research at Google DeepMind as well as early VC investors in SpaceX, Anduril, and Palantir.
We have built the world’s most advanced AI control system for high-tech greenhouses and have just signed out first customer contracts in North America and Europe having proven the performance of our AI across 3 seasons in our own demonstration greenhouse.
david@optimal.ag
Looking to join a social-impact driven company? Are you a software developer ready to use your skills for good? Onja trains underprivileged youth into world-class software developers. We are on the lookout for Course Designers who can help our students go from ‘what is coding’ to working in Global tech teams.
Help build a scalable course that will help train Madagascar’s brightest young people, while working alongside a team of talented, fun colleagues from all over Madagascar and the world. These roles would perfectly suit someone with experience in the tech world who's looking to break into education and make a difference with their time.
Please apply through the following links:
Front end Course Designer: https://onja.org/careers/front-end-course-designer Back end Node.js Course Designer: https://onja.org/careers/back-end-node.js-course-designer Full Stack Course Designer: https://onja.org/careers/full-stack-course-designer
- Our main languages are Rust and TypeScript, we also use mobile and offline pipeline languages (Python, Scala, and Terraform).
- We're based in NYC with our HQ in Union Square.
Interesting things we're working on:
- HorizonDB, our Geospatial database written in Rust
- Precise indoor location more accurate than iOS and Android leveraging Ultra-Wideband and other sensors.
- Anomaly detection to identify spoofed locations
- Mobile infrastructure that automatically configures itself optimizing battery-life and location accuracy for different use-cases over time
- Multi-Region AWS deployment, 99.99%+ availability, Speeding up deploys of backend data services with EC2 Warm Pools
- Automating security posture with Vanta
- Frontend tools to visualize and debug location data at scale
Check out our jobs page here: https://radar.com/jobs#jobs
If you have any questions, feel free to reply here or you can e-mail me at tim@radar.com
Plural creates AI workflow tools for investment banking and private equity analysts to supercharge their productivity and their ability to derive insights on their deals and data. We work with customers in London, Paris, Berlin, and New York.
We're looking for a senior full stack engineer with experience building complex UIs and data handling code on the backend in Python. You'll work on our RAG system and document processing pipelines, so any experience in those areas would be helpful too.
We are a small startup, with a committed team and lots of opportunities to learn on the job, and be given ownership of significant projects.
Technologies: Python, Typescript, React Salary: 80-110 GBP depending on experience
Email dan at plural.ai if interested
Look at the latest headlines and you will see something Ki insures. Think space shuttles, world tours, wind farms, and even footballers’ legs. Ki’s mission is simple. Digitally disrupt and revolutionise a 335-year-old market. Working with Google and UCL, Ki has created a platform that uses algorithms, machine learning and large language models to give insurance brokers quotes in seconds, rather than days. Ki is proudly the biggest global algorithmic insurance carrier. It is the fastest growing syndicate in the Lloyd's of London market, and the first ever to make $100m in profit in 3 years. Ki’s teams have varied backgrounds and work together in an agile, cross-functional way to build the very best experience for its customers. Ki has big ambitions but needs more excellent minds to challenge the status-quo and help it reach new horizons.
Calling all Software Engineers interested in Machine Learning and AI! If you're on the lookout for an exciting new opportunity, check out our open position at https://lnkd.in/ejgAfujK
Join the Model Platform squad at Ki, an ambitious team dedicated to developing Ki's Core Algorithmic Underwriting Platform, the backbone of Ki's Algorithmic Underwriting capabilities and aspirations.
The squad's mission is to empower Ki in constructing and deploying cutting-edge algorithmic underwriting models and scalable model graphs. Examples of what you might be involved in are - developer tooling, micro-services orchestration systems, ML model serving infrastructure, feature serving and storage infrastructure.
Tech stack: Python, Golang, Kotlin, Typescript, Kubernetes, GCP.
Feel free to reach directly if you have any question https://www.linkedin.com/in/alessandro-r-rizzo/
Rust is a programming language that helps people build reliable and efficient software at scale. It's a language that many people love.
The members of the Rust Project work together to build and advance this language and its related tooling and infrastructure. We take a particular pride in shipping tools that are stable and well polished.
We've lately been doing more explicit program management as part of our ongoing work to improve and scale our processes for shipping our language and these high quality tools. We've developed systems and standards for this that have proven to work well within the Rust Project, and we've been seeing substantial value from this work being done in the context of our edition and project goal programs.
We're now looking to hire some sharp and talented individuals to support and advance these systems and this work. That's where you come in.
For details on this role, and how to contact us about it, see here:
EDIT: I am only considering applicants based in Melbourne at this stage.
Sideline is a rapidly growing SaaS product for law firms that enables a track changes feature for draft emails within Outlook.
Around 30 law firms are currently using the product across three continents. Sales have been inbound. The company is bootstrapped. I am the sole founder looking for somebody to take the lead on the technology side so I can focus on growing the business.
Sideline is a web application. You will have full ownership of the codebase and SaaS infrastructure. You will interact directly with customers, being included in product feedback calls and some sales meetings.
Technologies used: JavaScript (some jQuery - not for long), TypeScript, Node.js, Azure, MS Graph APIs, Office JavaScript APIs. Note this is not a .NET/VSTO/COM Add-in.
Background on me: I was a corporate lawyer for 10+ years, as well as doing a bit of legal tech consulting, before founding Sideline. I’m active on LinkedIn.
If interested to learn more, please email: daniel at trysideline dot co.
Comity is on a mission to improve the reliability, transparency, and efficiency of our energy systems, fostering a future with sustainable and abundant energy. Our team is leveraging statistical learning and convex optimization methods to build the financial rails of our future energy systems that will accelerate the deployment of clean energy resources.
You can read the full JDs and apply here: https://jobs.ashbyhq.com/comity/63bad4c2-af41-4e75-bffa-9029...
Questions? Read out to andres@comity.ai
Lixo is a pioneering company specializing in data analysis solutions for waste collection, enhancing sorting quality and promoting the circular economy.
We are looking for a Senior Software Engineer to take ownership of our platform, focusing on architecture, performance, and scalability.
Tech stack: TypeScript (React/Node), HTML/CSS, PostgreSQL, Docker, Git, Google Cloud Platform (GCP) Requirements: Fluency in French Apply here: https://www.welcometothejungle.com/fr/companies/lixo/jobs/se...
Please mention that you found us on Hacker News.
AI has transformed text, images, and code—but structured data remains overlooked. Prior Labs is an early-stage startup building Foundation Models for tabular data, unlocking a new AI modality with the potential to transform science, finance, healthcare, and data science itself. Our model, published in Nature, is already state-of-the-art for small datasets, and we’re scaling this into a step-change for data science.
We’re backed by Balderton, XTX Ventures, and leaders from Hugging Face, Black Forest Labs, DeepMind, DataRobot, .. Our team includes world-class researchers and engineers from top AI labs, and we’re growing fast.
We're hiring founding engineers & builders to help define this new category:
Software Engineer – Build scalable infrastructure and APIs to integrate our models into real-world applications.
Product Manager – Define and execute the vision for AI-native tools for structured data.
Developer Relations – Grow the developer community, drive adoption, and showcase use cases.
ML Engineer – Optimize and scale our foundation models for structured data.
Location: On-site in Berlin or Freiburg (we believe in building together). Why Join? Competitive salary + equity, shape the future of foundation models for structured data from day one.
Apply now: https://jobs.ashbyhq.com/prior-labs
Questions? Reach out at noah@priorlabs.ai
Oneleet is an all-in-one cybersecurity startup that has built its own Attack Surface Monitoring (ASM), Code Scanner, Device Monitoring, and Compliance Platform. We are growing at an unprecedented pace and working on some very exciting projects.
What we're looking for:
- Senior Software Engineers with experience in our tech stack - Strong problem solvers who can work independently in a remote environment - Security-minded developers passionate about building robust, scalable systems (not a requirement) - Comfortable working during Eastern Time
Tech stack: Go, TypeScript, React, Kubernetes
We offer:
- Competitive salary ($100k-180k based on experience and open to negotiation) - Equity in a fast growing cybersecurity startup - 100% remote work - Company offsites every quarter (past offsites have been in The Netherlands and Italy)
If you're interested in joining our team, please reach out to nafees<at>oneleet<dot>com with the subject line "HN: Senior Software Engineer". Alternatively, you can also apply at https://www.ycombinator.com/companies/oneleet/jobs
Hi there, want a role with real impact? Join our mission to empower food manufacturers to eradicate supply chain food waste. We've raised our pre-seed and are backed by a £1.9M government grant to build an innovative AI driven software to support with the identification and intelligent reallocation of food. We’re looking for passionate problem solvers who have experience building and scaling web applications.
As our first FS software engineer you get to use your favorite tools and build from scratch (working with our data scientists to integrate our optimisation models).
Send your CV and a 60 second video about why you want to work with us to dini@thewonkicollective.com :)
Full job post here: https://www.linkedin.com/jobs/view/4165291061
Grebban is one of the most sought after agencies in Europe and works mainly with ambitious brands seeking long-term partnerships. We have a very high success rate in creating fantastic business value for our clients.
Tech Stack: PHP, Laravel, MySQL, React.js
Infrastructure: Docker, Linux, AWS
Roles:
Software Developer / Typescript: https://career.grebban.com/jobs/5555838-software-developer-t...
Backend / Laravel Developer: https://career.grebban.com/jobs/5172259-backend-laravel-deve...
We work on industrial/grid-scale batteries and other renewable generation: monitoring, managing and trading them on multiple energy markets. Batteries like these: https://en.wikipedia.org/wiki/Battery_energy_storage_system Everyone starting from the C-suite is passionate about addressing climate change and transitioning to renewable energy!
We're a small team of 7 backend engineers atm (other teams have Ops, FE and DS roles). We have paying customers and have been around for a while. Our current goal is to make the platform more scalable and move to new markets. The biggest challenge is understanding how the various energy markets and energy storage in general work and then translating that to reliable working software.
We're currently looking for a Senior Backend Engineer (Go) and a Senior Data Scientist. Our office is in London Blackfriars and most engineers come in about 2 days a week, but this is flexible.
Feel free to message me with any questions or apply directly: