Early stage Rails engineer wanted to build AI-driven enterprise wealth tools in NYC. Founding role, high ownership, direct impact.
We’re a seed-stage NYC startup reimagining how wealth management firms work. LEA extracts structured data from complex financial documents and automates workflows—handling everything from document organization to pushing clean data into CRMs and planning tools—so advisors can focus on clients instead of admin.
You’ll be the first technical hire, working directly with me (CTO/co-founder) to ship features fast, shape our development culture, and integrate AI into our Rails + Postgres + Hotwire stack.
Tech stack: Ruby on Rails 7, Postgres, Hotwire, AI Location: Hybrid NYC (onsite 2–3 days/week) Compensation: Competitive salary + meaningful equity
Apply here: https://jobs.polymer.co/lea/35348
Fleming (www.fleming.de) is digitalizing financing for health professionals. We are building and maintaining a React-Native / Nestjs based bank account frontend and a Salesforce base loan sales platform with a Ruby on Rails frontend. We are looking for a well-rounded engineer. You don't have to know the technologies we are using if you bring the conceptual knowledge and the drive to learn.
Some German language knowledge is required since you are going to build German UIs
more info: https://fleming.de/jobs/
Contact jobs@fleming.de
We are hiring experienced Senior Software Engineer and AI Developers to help deliver full‑stack products that bring operational automation and domain intelligence to teams (full-stack, agents, RAG, data pipelines, business dashboards).
You’ll need experience in software engineering, proficiency in Python, Ruby, SQL, JavaScript, full‑stack frameworks (Rails, Flask/Dash, etc.), AI toolkits (OpenAI API, LangChain, LlamaIndex, vector stores, RAG pipelines), and experience with agentic development practices. Canadian work authorization and relocation to Calgary is required.
Reach out through link in bio. No recruiters please.
* Experienced full-stack Rails and security engineers to work on the Aha! product. Our application is built in Ruby on Rails, with React on the frontend for rich client-side experiences.
* Devops engineers with Ruby experience. We focus on the "dev" and all of our operations driven by code.
Aha! is profitable, you can work from anywhere in North or South America, and we offer excellent benefits. We use our own product to manage our work (which is especially rewarding) and we deploy continuously.
Our entire team has always been 100% remote - in North American timezones so we can collaborate during the work day.
Learn more or apply at https://wellfound.com/l/2zf9K9 - I personally review every application, so just mention you found us on HN.
Sitewire is a simple yet powerful construction finance platform that helps lenders and institutional asset managers track project progress, automate work verification, and speed up payments. The company is functionally profitable and expanding 2-3x per year. We’re looking for an experienced and entrepreneurial full-stack engineer (senior or above) to help us achieve an ambitious growth plan. You will be a core member of the engineering team, working alongside peers with the support of a mature founding team expert in construction, mobile, and IoT.
Technologies: Ruby on Rails, Hotwire (Turbo / Stimulus), Tailwind, TypeScript, React, Postgres, Sidekiq. Experience with mobile, data engineering, machine learning, or 3D graphics is a plus.
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?utm_source=hacker_news
Since 2014, we have been building the leading Subscription Analytics Platform for growing SaaS businesses and CRM purpose-built for B2B SaaS teams. We're a remote-first company with 62 team members across 23 different countries. Profitable and self-sustaining since our seed funding.
What we accomplished in 2024: https://chartmogul.com/blog/chartmogul-2024-year-in-review/
Tech Stack: Ruby, Ruby on Rails, Vue.js, Typescript, Postgres, AWS
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Senior Full Stack Engineer: https://jobs.chartmogul.com/o/senior-full-stack-engineer-del...
We're a niche SaaS for the residential cleaning industry - #1 in our space and growing. 10 years profitable, no VC, few meetings. Lots of deep work, shipping & care for our craft. Cool culture, yearly retreats in Europe.
Stack: RoR, pg, gql, TS/React, Git
You:
• 5+ years writing ruby in complex monoliths
• Opinionated about maintainable back-end architecture
• Growth mindset and a focus on delivering user value
• Own back-end domains and lead their evolution, shipping fast without sacrificing quality
• TS/React is a bonus but not required
Benefits: Competitive comp, 100% remote, stable company, yearly retreats, modern stack, low-meeting culture. Freelance/EOR possible. Fast recruitment process.
Apply:
careers+aug2025hn [the-ruby-instance-var-prefix] zenmaid [the-tiny-disk-char] com
Please include your resume/LinkedIn/GitHub, cover letter or intro message, and a note about a BE refactor you're proud of.
• Post-MVP AI-powered B2B SaaS; serial founder-built & self-funded (pre-angel/VC), first customers onboarding – hiring employee #2. Modernizing a software category every company needs.
• Stack: Rails 8 · Hotwire (low-JS) · ViewComponents · Tailwind 4 · AWS · DynamoDB · OpenSearch · LLM APIs (zero legacy).
• You: 5+ yrs Rails, full-stack; non-relational DB + AI/LLM integration; autonomous builder & team player.
• Culture: tiny senior a-team, zero managers – you code or you sell. Values: Ownership · Pragmatism · Tempo · Kindness · No Ego.
• Comp: € 80-100 k base + € 20-25 k stock options (Delaware C-corp).
• Process: founder call → code walkthrough → 4 h remote pairing → decision in days. Apply: https://www.linkedin.com/jobs/view/4271296722/ or reply here with intro/CV + GitHub + LinkedIn.
We're looking for a Senior TypeScript SDK Engineer to join the team responsible for the Nutrient Web SDK.
It is a toolbox for web engineers and application developers who need a painless way to render, edit and process documents. It either runs client-side using WebAssembly or connects to the Nutrient Document Engine. Take a look at its API docs to get an understanding of the scope involved: https://www.nutrient.io/api/web/
More details & application here: https://ats.rippling.com/en-GB/nutrient/jobs/27613cfa-84eb-4...
Nutrient | Senior Internal Tools Engineer | Full-time | Remote
We’re looking for someone who will work on our internal applications - primarily built with Ruby on Rails and Postgres - which power everything from product development and licensing workflows to revenue analysis and operational management across Engineering, Sales, Product, and Finance.
More details & application here: https://ats.rippling.com/en-GB/nutrient/jobs/66934d69-fd40-4...
We're a fast-growing, strategy-first software studio with multiple openings. Please use "hackernews" as your referral source and I'll flag your CV for priority review with the hiring team.
ROLE: Product Designers | REMOTE (Americas) https://careers.gojilabs.com/32359
ROLE: Ruby on Rails Backend Engineer | REMOTE (Central/Eastern Europe) https://careers.gojilabs.com/32206
ROLE: React/React Native Frontend Engineers | REMOTE (Central/Eastern Europe) https://careers.gojilabs.com/31840
ROLE: Full Stack Typescript Engineer | REMOTE (Central/Eastern Europe) https://careers.gojilabs.com/32205
I’m the founder, trying to do “enlightened business.” We are a people-first, fully-remote, boutique indie tech agency – building a team of talented, high integrity, and community-minded individuals first, then building businesses around them. Our leadership staff are ex-Fortune 100; everybody touches code. Notable recent projects: internal tools for Anduril, and voltagepark.com.
Engineers:
We are looking for Full-Stack Software Engineers with proficiency in some or all of: React, Python, Ruby on Rails, Database Design, Devops, and third-party API integrations. Tier3 roles are typically 5-10 y/o/e with $150-$175k annual total comp. Tier4 roles are 11-20 y/o/e, $210-$250k annual total comp. Higher tiers exist, and we welcome exceptional applications.
Please apply using this Google Form: https://forms.gle/2LnPAcqQYWbthddb6. Applicants who submit before August 15 will receive a reply by August 22.
Sales:
I am continuing to seek one or two unique business-/sales-/marketing-minded individuals - probably former tech startup founders - to work with me personally on formalizing and expanding our sales efforts. Understand our unique inventory of talent, help me find problems worth solving for the staff, and pitch bespoke solution proposals that make potential clients take notice. Please send me a pitch, including your preferred pay band and/or comp strategy: hn-sales-rfp@ptown.tech
Clerq is a NYC based fintech startup building the next generation platform payments platform delivers a seamless checkout experience for high-ticket transactions. By leveraging modern bank rails, the platform offers the conversion and UX benefits of cards with risk and money movement infrastructure purpose-built for large purchases. Clerq replaces outdated manual payment methods like cash, checks and wires and expensive card surcharges with a smooth, integrated solution that helps merchants convert more customers without sacrificing margins.
We have started with the $1T+ U.S. auto vertical, where our platform is growing rapidly and already powering payments for several of the most recognized brands in the industry including multiple Fortune 500 companies. With proven traction, the company has expanded into high-growth adjacencies including high-ticket e-commerce, private travel and powersports.
We are a lean team and looking for senior or staff level engineers to help us accelerate our growth and build a future that doesn't rely on credit card networks.
Stack: Python/Django, React, Nodejs, AWS Comp: $180-210k + Equity
Email me at nick@clerq.io if you are interested in hearing more!
SerpApi is the leading API to scrape and parse search engine results. We deeply support Google, Google Maps, Google Images, Bing, Baidu, and a lot more.
Our current stack is Ruby, Rails, MongoDB, and React.JS. We are looking for more Junior and Senior FullStack Engineers.
We have an awesome work environment: We are a remote first company (before Covid!). We do continuous integration, continuous deployments, code reviews, code pairings, profit sharing, and most of communication is async via GitHub.
We value super strongly transparency, do open books, have a public roadmap, and contribute to the EFF.
Apply at: https://serpapi.com/careers
Sonix (https://sonix.ai) is an AI-powered transcription and translation platform used by thousands of businesses, researchers, media teams, and legal professionals around the world. We’re profitable, bootstrapped, and growing fast.
We're looking for a senior full-stack engineer to join our small team. You'll work directly with the founder/CTO (me) on everything from AI feature development to infrastructure to working with our support team to squash bugs. Our stack is Rails + React + Postgres + Redis.
It’s a great role if you love shipping quickly, owning big parts of the product, and working on a product people actually use every day.
More details here: https://sonix.ai/careers/senior-software-engineer Email me directly: stephen@sonix.ai
Chronograph was founded to bring next-generation technology to private capital markets. Through our suite of cloud-based analytics and data management solutions, we help many of the world’s largest and most sophisticated venture capital, private equity, and credit funds understand their investment performance in unprecedented detail.
We are looking for a candidate with a generalist background in software development, including 3-5+ years of experience on DevOps, Platform Engineering, Site Reliability Engineering (SRE), or MLOps teams. You’d be joining a small cross-functional team and have the chance to make critical contributions as we scale our engineering team and business.
Our ideal candidate has a passion for automating ops, troubleshooting infrastructure, and creating first-class developer experiences. On top of that, expertise with the following (or similar) tools/technologies is a strong signal of fit: Kubernetes, Prometheus, Grafana, Terraform, AWS, GitHub Actions, PostgreSQL, Node.js, Ruby on Rails, Nix, and Docker.
Note that while this is a remote position, travel to our NYC HQ 3x/year for "team week” on-sites is required.
If interested, apply here: https://grnh.se/1q1yybxf7us
Scholarly is building the HR operating system for higher education. We've built a software platform that enables our customers to make data-driven decisions and to automate essential processes like performance reviews, tenure processes, leave workflows, and more. We are a venture-backed seed stage company of experienced, motivated, and collaborative folks. We are backed by leading investors in the industry and working with some of the best universities in the US.
We're looking for mid-level and senior-level full-stack candidates without about 5 or more years of experience building web applications. We write Ruby and Rails, but we are considering candidates with other stack experiences. Engineering is based in Seattle and on site in Pioneer Square. Looking to get back to a collaborative, in-office culture post-COVID? Let's chat.
If interested, please apply here: https://scholarly.breezy.hr/p/f3bc050f524d-software-engineer
Yardstik is on a mission to reduce workforce risk through tools like background checks, identity verification, fraud monitoring and more. We are a well capitalized fast growing company based in Minneapolis but with a distributed workforce.
We’re looking for a Staff Engineer to help us build a brand new line of Risk products.
This isn’t just a heads-down coding role. You’d be leading the technical direction for an entirely new product category — shaping the architecture, making key system decisions, and working closely with Product and Go-To-Market to bring it all to life.
We’re a Ruby on Rails shop, so if you’ve got deep experience with Rails (and opinions on how to scale it well), you’ll feel right at home. You’ll have a ton of ownership, real input into the roadmap, and the chance to build something from the ground up that truly helps our customers reduce risk in smarter ways.
Apply here: https://app.trinethire.com/companies/135023-yardstik/jobs/10...
Frontend Developer - Must have strong design sense and eye for detail, as well as 3+ years of experience developing web apps with modern HTML, SCSS/SASS, WCAG, and UI patterns. Experience with Rails, VUE.js, and WebComponents/CustomElements is a plus.
Ruby/Rails Developer - Must have 3+ years Ruby on Rails experience, preferably with growing depth of skill on a single app. We have multiple clients with different deployments and customizations to business logic, and we use Github version control. Experience with Vue.js, US healthcare, and content management is a plus.
Implementation Manager - Must have 3+ years experience in software implementation, as well as project management, user testing, and training. Passion for healthcare is a plus.
About the project:
We create tools for healthcare organizations that help patients find care (https://www.sparkle.health/).
* It is a large app, been around for many years, so there is a mix of greenfield new features as well as maintenance and improvement of existing features.
* Our team is international and all remote, but mostly overlaps with the Pacific or Central time zone.
* Our developers work with near-autonomy toward shared goals. We don't micro-manage.
* We actively maintain work/life balance and reject crunch culture. We work hard to foster an atmosphere of independence and trust.
To apply: Please email lisa @ combinaut dot com with your resume and GitHub url.
Clio is the market leader in legaltech products and we recently raised a Series F round of 1.4 billion CAD to a valuation of 4 billion CAD, marking the largest Canadian tech funding in history (https://betakit.com/clio-tops-4-billion-cad-valuation-with-l...)
We also intend to acquire AI legal research tech company vLex to build a data moat with an estimated 1 billion searchable documents stored and ~50k new uploaded each day (https://betakit.com/clio-to-acquire-american-legaltech-vlex-...)
Some stats for Clio alone: 300MM+ ARR with 90% retention and 30% growth YoY / no debts / fortunate to have never done any layoffs. 1500+ staff before acquiring vLex, 450+ engineers, 55 eng teams.
* Security - currently ~20 engineers in 4 teams (offensive sec, defensive sec, infra sec, compliance) + standing up 1 net new team soon (product sec)
- Senior Infrastructure Security Engineer - infra is cloud-first on AWS with Kubernetes. 165K-172K CAD base salary + equity.
- Software Development Manager, Product Security - leans product software dev building for external sec features (rather than needing existing sec history or specialization). 205K-215K CAD base salary + equity.
* Machine Learning - currently ~30 engineers in 4 teams (MLE, MLOps, AI product dev x2) + still evolving especially after this vLex acquisition
- Senior Machine Learning Engineer - NLP, GenAI, fundamentals in statistical modelling and experimentation. Open to both Canada and US. 170K-179K CAD base salary + equity for Canada, ~200K USD base salary + equity for US.
- Senior MLOps Engineer - Python/Ruby, AWS, Kubernetes and Terraform. 170K-179K CAD base salary + equity.
* Others
- Senior + Staff Database Engineers - 2 separate roles, MySQL at massive scale. 165K-172K CAD base salary + equity for Senior and 200K-206K CAD + equity for Staff.
- Software Development Manager, CalendarRules - 60% performance management, 20% project planning (with dedicated PMs and Designers), 20% hands-on in the code building features with the team. Code is RoR but language agnostic in hiring process. Intentionally small teams to allow for managers to also code. 205K-215K CAD base salary + equity.
--> Message engineering.recruiting@clio.com and/or apply directly: https://www.clio.com/about/careers/engineering/
All applications are reviewed and processed by humans.
Blacklane is a global premium chauffeur service company operating in 50+ countries, focused on sustainable and high-quality services. We’re hiring for two senior engineering roles:
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### Principal Software Engineer
Lead architectural decisions across teams, design scalable backend systems, and mentor engineers. You'll work with Ruby, Go, TypeScript, AWS, Kubernetes, Kafka, and Postgres.
Apply: https://grnh.se/h29mw6kz2us
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### Engineering Manager – Partner Integrations
Lead a cross-functional team building APIs and services that connect Blacklane with external partners. Own delivery, support engineers, and drive technical direction across key integrations.
Apply: https://grnh.se/61ffb9i02us
If you like to know more about our challenges in the Partner Integration team, please take a look at our press coverage: https://www.blacklane.com/en/press/releases/riyadh-air-partn...
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We offer a hybrid work setup (Berlin, Barcelona, or London), competitive compensation, and a mission-driven engineering culture. More roles: https://www.blacklane.com/en/career/ped/