Millions of messy unstructured real estate data points. Thousands of edge cases. One mission to make it all sing. We're building the infrastructure to turn chaotic real estate data into precise location intelligence - backed by Y Combinator, General Catalyst, MetaProp, and Singularity Capital.
At PropRise, we're using AI to analyze millions of real estate data points daily—uncovering hidden deals even smart money miss. We are making unstructured and messy real estate data usable to help institutional real estate teams spot their next multi-million dollar location.
We're looking for an ambitious, data-driven engineer who's excited about building systems that will reshape how commercial real estate deals are sourced and analyzed.Our tech stack leverages TypeScript, Next.js, React, PostgreSQL, and GCP to handle large-scale data processing and analysis.
Founding Engineer (Backend) - $120K-180K + 0.50-1.50% equity:
Apply at: https://www.ycombinator.com/companies/proprise/jobs/PFuZCxC-...
Eureka Surveys (eurekasurveys.com) is one of the largest survey panel in the US, connecting Fortune 500 companies with the opinions of everyday people. We're a small, engineering-first team with a massive user base (9 million and growing!), and we're looking for a talented React/Next.js developer to join us.
About the Role:
Remote: Work from anywhere in the world. We're US-based but welcome applicants from all locations. Part-Time: Flexible hours to fit around your existing schedule. We understand you may have other commitments. React/Next.js Focus: You'll be working on our web and mobile web applications, building and improving features for our growing user base.
What We're Looking For:
Strong experience with React and Next.js. Solid understanding of web and mobile web development. A passion for building great user experiences. Work directly with cofounders
To Apply:
Please send your resume and any relevant portfolio links to kirby@eurekasurveys.com. We're excited to hear from you!
Holla, we want prenup, we want prenup.
Neptune helps couples build their financial future together. We're starting with prenups. We combine conversational AI with vetted experts to make complex financial decisions simple and accessible. We're backed by Floodgate (X, Lyft, Twitch) and other world-class investors.
You're a fit if you want to: - Own features end-to-end, from architecture to deployment. - Drive technical decisions that will shape our platform's future - Interested in using LLMs to build the next-great consumer financial platform
Stack: Typescript, NextJS, React, Python, Postgres
Email Ronke at: recruiting [at] meetneptune.com. Include HN in the subject.
Job description here: https://meetneptune.notion.site/Neptune-Founding-Engineer-14...
Pincites uses AI to help legal teams identify negotiation patterns, align with GTM teams, and streamline contract reviews. Our mission is to close deals faster by transforming legal into a strategic partner through transparent, automated workflows that improve consistency and collaboration.
We're already working with large enterprises that you'll know and are expanding our founding engineering team. You'll be a fit if you're:
- Ready to take ownership over large technical areas
- Proficient with React, Typescript, CSS, Next.js
- Experienced working with LLMs
- Love to learn
Fancy a chat? Please reach out to me on our job board: https://www.ycombinator.com/companies/pincites/jobs
Building a next-gen payment orchestration platform. We're a tech incubator/investor backed by successful implementations across fintech, e-commerce and enterprise software.
Tech stack: Java/Kotlin, Spring, Next.js, React, PostgreSQL, ActiveMQ, Docker/K8s, AWS, Terraform
You have:
- 5+ years building production software
- Deep Java/Spring and/or Next.js/React expertise
- Payment systems/financial protocols experience
- Strong English for global team collaboration
- Desire for taking ownership
We offer:
- Competitive compensation
- Modern penthouse office in central Bangkok
- Flexible working hours
- Global team (10+ nationalities)
- Startup culture with enterprise backing
- Visa sponsorship
Join our core Bangkok team working alongside distributed global colleagues. While we manage various tech projects you'll focus on our flagship payment platform - our most strategic initiative.
Apply directly by sending me an email at roan.m@puraido.com
We have other open positions too. See https://puraido.com/jobs/
Cloudist helps partners to offer Green Cloud services to their customers. The product you'd be working on would be a portal backed by an API allowing for clients to spin up VMs, provision S3-compatible storage buckets etc. Think AWS Console and API, but of course in a smaller scale.
We're a small, boot-strapped, profitable startup with an interesting voyage ahead of us.
This is a full-time (i.e. non-contractor) position, and we require you to be able to commute into our Malmö office several days a week. You should have a permanent work permit in EU and proven experience working face-to-face in EU-based teams. I.e. we offer no work visa sponsorship.
Read more and apply at https://www.cloudist.se/full-stack-developer
Don't hesitate to contact me at thomas.lundstrom@cloudist.se if you have any questions.
We’re a small but mighty startup in commercial real estate tech, building something people actually want. Our marketplace has already gained significant traction, with over $40B in loan quotes processed. We’re looking for a senior full-stack developer to take ownership of both backend and frontend, make key decisions, and ship real product. This is a high-impact role—if you want to build, move fast, and work closely with a team that values execution, this is it.
The Role Own full-stack development with Laravel (backend) and Next.js, Vue.js, or React (frontend). Build and scale features, optimize performance, and integrate third-party APIs. Architect and maintain a scalable infrastructure. Work directly with founders in a fast-moving, high-output team. Who You Are Experienced in Laravel, PHP, MySQL, Next.js, Vue.js, and API development. Have built and scaled production apps. Comfortable making technical decisions and taking full ownership. Thrive in a fast-paced environment—this isn’t a slow, cushy job. Why Join? $140K-$180K salary + equity. We value top talent. Small team, high impact. Your work will directly shape the product. No corporate fluff, just building. Direct access to founders, fast decision-making. Miami-based. We work together in person to iterate quickly. Relocation assistance available for the right candidate. How to Apply Send a resume (PDF) and a link to GitHub to chaim@financelobby.com
We're building technology that sends data through mud - literally. Our telemetry systems operate at extreme depths, temperatures, and pressures, serving both traditional drilling and pioneering sustainable energy applications like geothermal power. As a bootstrapped and profitable company of 35 people, we offer startup-like challenges with established business stability.
Two key roles we're hiring for:
1. Data Engineering:
- Build scalable platform monitoring thousands of drilling devices
- Create anomaly detection, performance monitoring and predictive maintenance systems
2. Machine Learning:
- Develop signal processing/denoising models for wireless telemetry
- Build ML systems for real-time signal recovery in high-noise environments
- Build data pipeline for continuous expansion of data, benchmarking and model deployment
Tech: Backend: Python, PyTorch. Frontend: NextJS, TypeScript, React frontend
Why join:
- Direct impact on real-world systems in a small team
- Unique hardware/software technical challenges
- Growth-focused culture with no red tape
- Help transition drilling tech to sustainable energy
Benefits: Health/dental/vision, 401(k) match, PTO, remote flexibility
Email ken (-at-) erdosmiller.com with your resume and why you're excited about these challenges.
Prefer US Work Authorization. Open to Canada, Europe. No agencies.
We are looking for candidates that are excited to join us on a mission to build a web economy for AI agents. All of our roles are fully-remote.
Remote Open Roles
- Infra Engineer (Python, GCP, k8s)
- Frontend Engineer (React, NextJS, GraphQL)
- Growth Associate
Link to Apply: https://to.atrium.st/careers-mxaqz
Artificial Analysis is an independent AI benchmarking and insights provider. Our benchmarks help engineers and companies understand AI and make informed decisions on AI technologies and providers.
We are hiring for two roles:
1. Full Stack Engineer: Full Stack Engineer to support our benchmarking of AI and with communicating these benchmarks to our users. Proficiency in Typescript & Python required. Familiarity with LLM APIs preferred.
Tech stack: Javascript/Typescript, Node.js, React/Next.js, Python.
2. ML Engineer: ML Engineer to support our benchmarking and evaluation of AI software stack. You will design and run benchmarks and evaluations of different AI models.
Strong analytical skills and proficiency in Python required.
Apply at hiring (-at-) artificialanalysis.ai with your resume, github and dot points on relevant experience.
The company: Healthtek Solutions is looking for a frontend (or fullstack) software engineer with 3+ YoE. We're a Brooklyn-based healthcare company (~30 people and growing), primarily working in the revenue cycle management (RCM) space. We're focused on building the next generation of healthcare products and services that empower physicians and medical practices across New York State.
The role: Our software group is a lean (2 person) engineering team looking to round out our skillset with experienced frontend chops. The primary RCM product that we're building and scaling is a Postgres/NextJS/Typescript app on AWS. You'll be a key part of building out our technical strategy and team culture as we grow.
To apply or learn more contact me at `kevin dot guo at healthtek dot com`. We do offer visa sponsorship.
We are looking for a Senior-level engineer to help us build out and scale DevCycle. We are a small team that's been building in the feature flagging / AB testing space for a while (from Taplytics YC W14), supporting open standards like OpenFeature. We run a large distributed system serving trillions of monthly evaluations, relying on technologies like Cloudflare Workers, Next.js, Nest.js, WASM, etc.
If you are interested, please connect at: https://jobs.lever.co/devcycle/c985bdfb-c6c4-4640-96c2-da3ec...
Complete Sleep is a VC-backed, early stage company that is changing the way sleep apnea is tested, diagnosed, and treated so that patients can quickly get the help they need. About 1 in 4 adults has sleep apnea, and 80% of those people haven't even been diagnosed.
Our founding team is composed of early-stage veterans in each key area of our business. We care about our patients, the people we work with, and the people in our lives outside of work. Passion for our mission, having fun at work, and enjoying life outside of work are all important to us.
We're looking for a Staff Backend Engineer with 10+ years experience to lead our backend stack, working closely with our technical CTO. Our stack is built with golang, with NextJS frontends (there are multiple frontend apps). We're hosted on AWS in Dockerized containers and managed via Terraform. We have a stable, well-structured technical environment that is meant to empower engineers to build with quality, performance, and security in mind.
We're not legacy healthcare, and we never plan to be. If we're going to solve this problem, we have to build things well and transform the way people are treated. Come join us in helping people, while building great technology!
To apply or learn more, email rohen at mycompletesleep dot com. I'm also down to grab coffee if you're currently in NYC.
Trunk is an a16z funded dev tools startup, redefining software development at scale. We aim to solve problems that developers hate by bringing the tools usually built in-house at the best engineering orgs to every development team. We've built 4 products so far and have plans for more:
* Code Quality: a universal linter/formatter, available as a CLI, VSCode extension, and CI check; * Merge Queue: a merge queue, to ensure that PRs are tested in order before they're merged; and * CI Analytics: detects, quarantines, and eliminates flaky tests from your code base. Prevents flakey tests from producing noise and blocking CI. *Flaky Tests: Detect and eliminate Flaky Tests. In 2022, we raised a $25M Series A led by Initialized Capital (Garry Tan) and a16z (Peter Levine)Our tech stack:
* Frontend: Typescript, React, Redux, Next.js * Backend: Typescript, Node, AWS, CDK, k8s, gRPC * Observability: Prometheus, Grafana, Kiali, Jaeger * CLI: C++20, Bazel * VSCode Extension: Typescript * CI/CD: GitHub Actions * General: GitHub, Slack, Linear, Slite Unlimited PTO (and we all actually take PTO), competitive salary and equity packages! Please apply here: https://trunk.io/jobsAt Sensay, we're on a mission to shape the future of AI personal replicas. As we expand our development team, we are looking for a talented senior full-stack engineer to help build outstanding features that our customers love.
As a senior full-stack engineer, you will be responsible for designing, developing, and maintaining our applications using Next.js, Supabase, and TypeScript. You will collaborate closely with product owners, UX specialists, and other developers to deliver high-quality software solutions that meet the needs of our users
Technical Requirements:
- Strong experience with Next.js and TypeScript
- Proficiency in front-end technologies such as HTML, CSS, and JavaScript.
- Experience with API design and development, including RESTful services.
- Familiarity with databases and data modeling, particularly with PostegreSQL and Supabase is a plus.
- Understanding of Agile methodologies and experience working in collaborative team environments.
We have a team of 10 software engineers that is constantly growing. Full flexibility and minimal meetings.
Send me a message directly: andrea+hn [at] sensay.io
Purplefish is transforming the trillion-dollar talent industry with powerful AI agents that will fully automate most hiring processes end-to-end.
We are funded by 8VC, and Adam and I previously worked closely together to launch 145 companies at the venture studio Fractal Software out of a $650 million fund. Before that I was a staff software engineer at Lyft, and Adam was CRO at Wunderkind ($100m+ ARR). We've built a powerful voice agent, and are expanding into other parts of the sourcing-to-onboarding flow.
We're currently a team of 3 engineers in NYC (9 people total). We're working on really cool problems with multimodal AI agents (and some really not cool problems like ATS and HRIS integrations). I'm trying to build the engineering team that I would want to join, which to me means a high emphasis on agency, purpose, technical excellence, collaboration, learning and velocity. Recently A16Z mentioned us in the state of voice AI report: https://a16z.com/ai-voice-agents-2025-update/
We're building on LiveKit's agents framework and a host of other systems. We're looking for builders - people who are willing to learn and experiment and build fast.
If that's interesting, let's talk.
We power social commerce success for the most successful European D2C beauty and personal care brands in China, the world’s largest ecommerce market.
Our solution allows brands to sell through and analyse multiple ecommerce marketplaces with just one integration.
We've built out the China side of our solution and are now hiring a full stack developer in our European team to help take our brand portal to the next level.
We're at seed stage but are smashing our metrics and getting ready for a series-A later this year.
We're looking for scrappy self-starters who can grow with us on this journey.
Stack: Typescript, React (NextJS 14 app router), Tailwind, Postgres (Supabase)
If you're interested drop a comment below or email james dot campbell at goyaso.com
Schoolhouse.world is a non-profit startup founded by Sal Khan with the mission of connecting the world through learning. Our peer tutoring platform empowers learners everywhere with free online tutoring over Zoom. We currently have over 100K users from 150+ countries, with plans to grow the platform to millions.
You'll be one of five engineers owning full-stack projects, scaling up infrastructure, and moving quickly to impact learners and tutors across the world.
Stack: TypeScript, Node, Next.js, React, PostgreSQL, AWS Compensation: $175K-$200K Perks: Fully remote, flexible hours, competitive salary + benefits, work-from-home stipend, semesterly retreats
Job description: https://jobs.ashbyhq.com/schoolhouse-world/2506b8aa-26a2-4a3...
At Gigs, we're building for SIM Cards what Stripe built for payments. If you enjoy working on challenging problems in a space that has a lot of room for new ideas and abstracting complexity, this is your spot.
Gigs has recently raised a $73M Series B round lead by Ribbit Capital. We're looking to grow our A+ team (ex. Soundcloud, Stripe, Apple, Airbnb) to build our vision of providing phone and data plans though an API, globally.
Stack: RoR, Go (Backend), TypeScript, React, Next.js (Frontend)
Apply here: https://gigs.com/careers
We're building automation software for the $7T insurance industry, accelerated by AI. Seed stage in terms of headcount (< 20 people) but Series B in terms of business traction (+ cash-flow positive). We've intentionally stayed under the radar.
- Product has caused customers to literally cry tears of joy
- Experienced eng team from Airbnb / Asana / Brex / LiveRamp
- Stack: TS, Postgres, React, GraphQL, and Next.js
Apply here: https://comulate.com/careers
We're expanding our team and looking for passionate individuals to join us in building innovative solutions for philanthropy in the DAF team (we provide the technology that runs the Charityvest DAF). Our current openings include:
Senior Software Engineer, Back-end, DAFs: Design and implement core products for our Donor-Advised Fund (DAF) offerings, using a modern fully serverless event-driven architecture in AWS with TypeScript and Postgres.
Senior Software Engineer, Front-end, DAFs: Craft exceptional, high-performing user interfaces for our DAF platform, using modern React 18+ and Next.js 14+ features.
Additionally, we're also seeking two Senior Product Managers with a proven track record of shipping highly relevant products to production, bonus points if they're fintech related.
If you're passionate about fintech and making a meaningful impact in the world of charitable giving, we'd love to hear from you.
Feel free to email me your CV and I'd be happy to share more details: edmundo+hn [at] charityvest [dot] org
At Packfleet we’re bringing the experience of receiving a package into the 2020s with modern tech, real-time tracking and updates, seamless integrations and great customer experience.
We have a small team of 6 engineers with experience at some of the best known tech brands in the UK (Monzo, Citymapper, SkyScanner, Amazon, Apple)
We're hiring for the following:
- Senior Frontend Engineer, to work on building world-class recipient & merchant apps. (NextJS, React)
- A Senior / Mid-level Backend Engineer to help us build better operational tooling, including vehicle routing and warehouse automation (NodeJS, K8S, Rust)
We run a full-stack TypeScript setup combined with some Rust services where performance matters (e.g. our in-house router).
The role is 2 days a week in the office (South London), 3 days a week remote.
Apply at https://packfleet.com/jobs or feel free to email me: rico [at] packfleet