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. As our business grows, we're expanding the team, backed by a recent $140M+ growth equity raise.
We are looking for a candidate with a generalist background in software development, including 5+ years of experience on Platform Engineering, DevSecOps, Site Reliability Engineering (SRE), or MLOps teams. You'd be joining a small cross-functional team and have the chance to make critical contributions.
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.
If interested, apply here: https://grnh.se/1pm4u2ys7us
Rebuilding core marketplace flows (Search -> Booking -> Post-booking) and consolidating fragmented pricing/inventory logic into a clean backend domain. Senior, Staff-leaning: you own pricing/inventory/search, ship end-to-end (UI + API + data model + rollout), mentor engineers, report to Head of Eng. Clear growth path to Staff.
Stack: Next.js/React/TypeScript/Tailwind + Ruby on Rails/Node.js + Postgres/MongoDB + AWS/Datadog + Playwright.
Need: 4+ yrs production web apps, comfortable in both Rails and React, solid on schema design/query performance.
Bonus: international expansion (Mexico/Caribbean, then Europe) and new verticals (Spa) coming this year — good time to join if you like greenfield scope.
Full JD + Apply: https://uctalent.io/referral/Huynh_Nhu_Bao_Nhan221138/Mg5J2X...
ResortPass is rebuilding the web experience behind one of the largest hospitality marketplaces. We're rewriting ~75% of resortpass.com this year, focusing on Core Web Vitals, SEO, performance, and developer experience.
Roadmap this year is aggressive: international expansion (Mexico/Caribbean, then Europe), moving search off Algolia in-house, a new Hotel SaaS product, Spa as a new business line. AI features (concierge chat, AI booking assistant) are also landing on this frontend, so there's exposure there too.
You'll help lead large frontend initiatives, define architecture, mentor engineers, and work closely with Product and Backend teams.
Tech: React 19, Next.js 16 (App Router), TypeScript, Tailwind, shadcn/ui, Playwright, Datadog, Node.js, Ruby on Rails, PostgreSQL, MongoDB, AWS.
Looking for engineers with 6-10 years of experience building production web applications and deep expertise in React/Next.js.
Full JD + Apply: https://uctalent.io/referral/Huynh_Nhu_Bao_Nhan221138/O-al4W...
We manage over $3B for CPG brands like OLIPOP, Tropicana, and Dr. Squatch. We 5x'ed revenue last year and are on track to 4x this year.
The role is engineering + customer implementation: working closely with customers that are household names to run their implementations to ground, as well as enable the broader set of customers.
Stack is Rails, Python, TypeScript, Postgres, and AWS.
Job Description: https://jobs.ashbyhq.com/confido/e3d42ff2-4ab4-4469-9091-d24...
Tax Rails is building TurboTax for payroll taxes — we simplify the payroll tax processes like e-filing and election filings into clean APIs. We're hiring a senior Rails engineer (4–10 yrs) to own features end-to-end: modeling gnarly tax workflows, document generation, e-file pipelines. Care about correctness — in tax, "mostly right" isn't right. No tax background needed.
Email griffin [at] taxrails [dot] com with a short note, resume, and something you've built.
3Play makes content accessible across disability and language. Our human-QA'd captioning, audio description, subtitling, and dubbing services are used by over 10,000 media, higher ed, creator, enterprise, and government customers. We’ve worked on really cool projects: recent examples including captioning the 2024 Paris Olympics and providing quality AI dubbing for high-profile YouTube creators.
I'm leading the Growth team, and we're working to build new, beautiful UI experiences on our long-loved services. Our stack is a Remix/Rails product and Astro/Sanity marketing site, both backed with modern design system foundation (what you might expect with Typescript, Tailwind, ShadCN, Tanstack, etc). I'm looking for a principal-level engineer with strong taste in front-end: someone who cares about UX and styling, takes accessibility and page weight seriously, builds strong validation / testing harnesses, and keeps a dependency tree sane instead of letting it metastasize.
The other part of this role is contributing to our agents and workflows. We've invested heavily here with the right mix of enthusiasm, guardrails, and budget. You'll have heavy influence over how it evolves: what we hand to agents vs. keep in human hands, how work gets specified and parallelized, how we keep the results beautiful, and where the security and review gates live. There’s a ton of opportunity to work with the latest AI tooling and determine best practices as the industry matures. We’re a small team happily working over 15 years with high impact, high autonomy, and low bureaucracy. Come join us! Apply at https://www.3playmedia.com/company/jobs-post/?gh_jid=7761973.... Mention HN when you apply!
Relevant builds a data platform that helps safety-net healthcare providers deliver better care using data from their electronic health records. Our customers are non-profit clinics called Community Health Centers. You can read more about them, us, and the roles on our jobs page: https://relevant.healthcare/jobs/
We're a small team (~25 overall). We're bootstrapped (no external capital whatsoever, VC or otherwise) and profitable. We've got a modern tech stack (Rails, Typescript, React, GraphQL, d3) and a healthy approach to both tech debt and work/life balance… and we’re also a very nice group of people that get to work on interesting problems for some of the few unimpeachably good actors in healthcare!
SerpApi is the leading API to scrape and parse search engine results. We provide 100+ APIs to Google, Google Maps, Google Images, Bing, Baidu, and 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, and are a Contributing Member of the Rails Foundation.
Apply at: https://serpapi.com/careers
Perry Street Software, the largest independent publisher of LGBTQ+ apps globally and creator of SCRUFF (www.scruff.com) and Jack'd (www.jackd.com), is hiring for Senior Ruby Developer.
In this role, you will help build our Ruby API powering our family of mobile dating apps. We are looking for engineers who are passionate about architecture and monads! (Ok just kidding about the last part -- but you can see more about our approach to API development in our Medium blog series at https://medium.com/perry-street-software-engineering, and you can see our contribution to Ruby architecture at https://github.com/perrystreetsoftware/Rubyzen). The position is 40 hours per week and ongoing/full-time.
Interested developers should apply at: https://rubyonremote.com/jobs/73278-senior-ruby-developer-eu...
Applicants should please read this 60-second blog post (https://tombedor.dev/human-attention-and-human-effort/), which we believe applies equally to job applications as it does to generated code.
Purely AI-generated applications will not be considered for this role.
Rail Europe is a global travel tech company and the reference brand for European train booking. We're looking for experienced Ruby on Rails developers.
Stack: Ruby on Rails, Hotwire, AWS, Postgresql
Open roles here: https://www.welcometothejungle.com/en/companies-v1/rail-euro...
We are a people-first, boutique tech agency creating on-demand teams and software solutions for long-standing clients. These clients trust us to practice engineering excellence as though we were members of their own staff. Our leadership team is ex-Fortune 100 with software engineering backgrounds: we’re still coding. Notable recent projects include a gigantic ERP migration for Anduril Industries, and a skunkworks with Surge Labs helping to develop some of the frontier LLM models themselves (yes, seriously). This is a remote-first agency, but some projects involve onsite work.
I’m the founder and CEO, and I’m trying to do what I call “enlightened business”. I take responsibility for both staff and clients, and I look for people who approach their work with a similar sense of ownership. Applicants must meet a high bar - I personally review every hire. In return you’ll get:
* Flexibility and a low-bureaucracy environment * Clients that won’t treat the vendor like “the B Team” * The chance to act as a code architect, not just implement tickets * Exposure to a wide variety of industries and modern challenges * Me as your personal champion and advocate Feel free to submit, even if you already did in the past.We’re currently especially seeking:
Back-end, Front-end, and Full-Stack Software Engineers, Tiers 3 and 4 (Typescript/Javascript, React, NextJS; Ruby on Rails; Python; DevOps, and third-party API integrations)
Tier 3 roles are typically 5-10 years experience with $150-$180K total comp.
Tier 4 roles are 11-20 years experience, $215-$260K total comp.
Higher tiers exist, and we always welcome exceptional applications.
Though not yet universal, many of our clients are now demanding senior/staff engineers with success using modern agentic approaches. Be ready to explain where current models work well and where they do not.
Please apply using this Google Form: https://forms.gle/Ec9WgTTakAV8HcAx9
Opendate builds the ticketing platform powering independent music venues across North America.
We're looking for a senior engineer who is pushing the boundaries of AI-assisted software development.
Everyone says they use AI. We're looking for someone who has gone much further—someone who is constantly experimenting with new workflows, building agents, automating entire pieces of development, and rethinking what one engineer can accomplish.
Our engineering team believes AI is fundamentally changing what great engineering looks like. We want people who are helping define that future—not waiting for someone else to.
Our stack includes Ruby on Rails, React, PostgreSQL, AWS, Sidekiq, and Stripe, but we're far more interested in how you build than the specific technologies you've used.
If you're excited by questions like:
How can AI own an entire feature from design to deployment? What engineering work still requires humans, and what should be automated? How do we move dramatically faster while maintaining an exceptionally high bar for quality? What does an engineering organization look like when every engineer has AI teammates?
...you'll probably enjoy working with us.
If this resonates, we'd love to hear from you.
https://www.opendate.io/careers/senior-full-stack-software-e...
My name is Marius and I am the CTO at AREO (https://goareo.com/).
AREO, founded in January 2023 by a team with 20+ years of combined experience in retail and startups, is a young startup specializing in developing innovative solutions for supermarkets and grocery retail stores.
Our cutting-edge B2B SaaS platform optimizes workflows for employees by providing real-time access to inventory, product information, and customer inquiries. We serve large supermarket chains in Germany and across the EU.
We already hired two backend developers through "HN - Who is hiring" and are now seeking a Lead Product Engineer / Engineering Manager with a minimum of 8 years of experience (preferably in startups), as we just closed another large contract with a major retail chain and are growing quickly.
For both the Product Engineer and the Engineering Manager role professional knowledge of German is required.
If you're passionate about building innovative retail products from scratch, these roles are for you.
Backend Stack: Ruby / Rails (8.x), StimulusJS / Hotwire / Turbo, AlpineJS, Postgres, Docker, DigitalOcean, OpenAPI, LLMs
Perks: Fully remote roles (Europe), work where you are most productive, sizeable equity in a rapidly growing company, flat hierarchies, no-ego work environment, work in a lean but highly experienced team
Apply here: marius[at]goareo.com and mention “HN - Who is hiring?” and the role you are applying for in the subject.
YC is hiring Product Engineers to build the future of YC -- and increasingly, software for startups everywhere.
We're a team of ~20 engineers building everything from Work at a Startup and Demo Day to investor software, founder tools, AI systems, and new open source projects. We don't have PMs. Engineers talk to users, decide what to build, and ship quickly.
Some of what we've been building:
* New products: GStack rethinks the software stack for an AI-native world. GBrain explores persistent memory and knowledge systems for AI. Paxel and other AI-powered products help founders—and increasingly everyone else -- build software and companies faster.
* Products at scale: We build and operate Work at a Startup (2M+ candidates, 1000s of early startups), Demo Day, our investor marketplace, SAFE signing, founder CRM, and the software that powers YC itself.
* Data: YC has over 20 years of proprietary startup data. We're applying it to how we think about the future of YC's batch, fundraising tools, hiring, recommendations, and entirely new ways to help people start and grow successful companies.
AI has fundamentally changed how we build software, and we're looking for engineers who are already experimenting with coding agents, MCP, LLMs, context engineering, evals, developer tooling, and whatever comes next. Our stack includes Rails, React, Postgres, Python, TypeScript, LLM APIs, and plenty of experimental infrastructure, but we're much more interested in great builders than expertise in any particular framework.
We're in person in San Francisco (Dogpatch). You'll work closely with founders and alongside people like Garry, Jared and Diana, helping define how YC—and startups more broadly—build software in the AI era.
We offer competitive compensation, carry in the YC fund, and a small, high-autonomy engineering team.
Learn more about the team and role at https://www.ycombinator.com/software. If this sounds exciting, I'd love to chat -- email me directly at ryan@ycombinator.com.
What’s exciting about this specific role & company right now? We partner with major health plans to make homes safer and more accessible for older adults and high-needs populations. By combining technology with a network of clinicians and installers, we deliver personalized home modifications nationwide. We’re fast-growing and backed by incredible investors like Valtruis and The Home Depot. As an engineer here, you’ll be solving complex data and scaling challenges that directly improve patient outcomes. We operate with high autonomy and a modern stack, giving you the room to ship meaningful code.
Stack: React and TypeScript on the front end and Ruby on Rails on the back end
When you look at the headers of major websites, you’ll see us. If it has to be performant, secure, scaled worldwide, and always-on, it uses Fastly.
We're a globally edge cloud platform for performance and security, emphasizing open standards, sustainable engineering, and resilience-by-design.
We're hiring across compute, security, platform engineering, network and edge protocols, release engineering, network architecture, client services engineering, and more.
Rather than building walled gardens, we co-founded the Bytecode Alliance, heavily upstream our work to open standards, actively author IETF drafts, and power the global infrastructure for open-source Python, Rust, Ruby, OpenStreetMap, and much more.
- The Stack: Rust, C/C++, Go, Javascript, Typescript, WebAssembly (Wasm/WASI), Wasmtime, Cranelift, eBPF/XDP, QUIC, HTTP, TLS, TCP, Varnish/VCL, Linux kernel internals, distributed systems, professional services.
- Apply: https://www.fastly.com/about/careers