We're a construction payment management SaaS based in Ireland. Main contractors and subcontractors use us to track subcontracts, payment applications, and retentions — replacing the spreadsheets they currently rely on. Small team of 5 (3 in engineering), customers in Ireland and the UK.
We're hiring our 3rd engineer. You'd own features end-to-end alongside our two existing engineers. Async-first, fully remote, real product ownership.
What we want: - 5+ years shipping Rails in production - Daily Claude Code or Codex user with a real workflow, your own skills/hooks/commands, opinions on when to override the agent, habit of reviewing AI output as critically as a junior PR - Strong written English, calm under customer-facing pressure
Stack: Rails 8, Hotwire (Turbo + Stimulus), Postgres, RSpec, AWS, GitHub Actions
Apply: product-hiring@trak-pro.com please share your resume and a one paragraph note on your AI workflow (tools, skills, hooks, or commands you've built). https://trak-pro.com
We are a people-first, boutique tech agency creating on-demand teams and software solutions for long-standing clients, who 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 and who are still coding. Notable recent projects include internal tools for Anduril, and the original buildout (both auction site and operations infrastructure) of Voltage Park. 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)
Our Tier 3 ("mid-tier") roles are typically 5-10 years experience with $150-$180K total annual comp.
Our Tier 4 ("senior") roles are 11-20 years experience, $215-$260K total annual 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/7yv5jhybsGRNDx3o9
* Quantitative Researcher for Monetization
* Quantitative Researcher for Portfolio Optimization
* Quantitative Researcher for Congestion Revenue Rights (CRRs)
* Power Market Researcher
* Surety Director
* Growth Lead
* Originations Lead
Comity is on a mission to improve the reliability, transparency, and efficiency of our energy systems, fostering a future with sustainable and abundant energy. To accomplish our aims, we’re leveraging state of the art statistical learning and convex optimization methods (AI) to build the financial rails of our future energy systems.
We envision energy systems that are efficient, autonomous, resilient, and powered by 100% renewable energy.
You can read the full JD and apply here: https://jobs.ashbyhq.com/comity
Missive brings inbox collaboration to teams that run on email.
This isn’t your typical SaaS; it’s a full-fledged app users live in all day. We integrate with dozens of APIs and servers, process 10M+ emails, 100M+ requests per day serving thousands of users who collaborate in real-time. If you’re excited by data at large scale, complex edge cases and third parties that always find new ways to fail, this is for you.
Missive started over a decade ago. It is mature, still 100% founder-owned and highly profitable. We’re in it for the long run; a small, dedicated team building a product customers genuinely love.
We keep our stack simple and that doesn’t mean boring. The backend is a Rails monolith, Postgres, plus a few tiny services in Ruby, Node or Bun.
Warning, we are hiring remotely, but Eastern americas to central Europe timezones only.
Read more and apply here: https://jobs.rubyonrails.org/jobs/27037-senior-backend-devel...
Open Roles: - Senior AI Engineer — LLM engineering, AI agents, reliability assistant - Senior Product Engineer — Ruby/Rails, owns features end-to-end - Senior Platform Engineer — infrastructure, CI/CD, capacity planning - Senior Site Reliability Engineer — SLOs, incident management, automation - Head of Platform Engineering — infrastructure strategy + team building
GTM / Customer - Enterprise Account Executive (2 locations) - Mid Market Account Executive - Solutions Engineer — APIs, Terraform, technical customer success - Head of Support - Customer Success Manager - Technical Support Engineer (Hybrid)
Legal - Commercial Counsel — customer/partner agreements, compliance
Apply at https://rootly.com/careers
At Triumph Financial, we’re building the modern freight payments network powering over $37B in annual volume. Our mission is to make freight transactions seamless, accurate, and secure, helping an entire industry move faster.
We have a variety of roles open, and I'd encourage anyone to checkout our careers page: https://triumph.io/about-us/careers/
For our Carrier vertical specifically we are looking to hire:
* Lead / Staff level engineers (.NET (we have F# in production now), or Rails backend).
* Staff Product Manager
On the PM front: two roles, one on our user facing product, one in our operations team (ideal target candidate loves to build efficiencies).
Roles are here: https://triumph.io/about-us/careers/
Please put “Ash HN” or something similar in the referrals so we can bubble you up.
If you have questions, feel free to reach out directly at aanderson at tfin dot com.
Opendate is the operating system for live music venues — booking, ticketing, marketing, and settlement, all in one place. We replace the tangle of spreadsheets, holds-and-confirms email chains, and ticketing platforms that independent venues, promoters, and festivals have been duct-taping together for decades. Customers range from 200-cap clubs to multi-day festivals.
We're a Rails shop with real backend problems: multi-tenant ticketing at on-sale scale, financial settlements that have to reconcile to the penny, and integrations with the rest of the music industry's plumbing (Stripe, Dwolla, Seats.io, Twilio, SendGrid). If you like systems where correctness actually matters and the users are people you can go meet at a show, you'll fit in.
Stack: Rails, React/Redux, PostgreSQL, Redis, BigQuery, AWS, GCP, Docker, Terraform. Flutter on mobile. AI-first engineering culture — Cursor, Claude Code, and Copilot are part of the daily workflow, not banned from it.
100% remote within the US (no sponsorship), with optional Indianapolis or Chicago offices if you want them. Looking for 5+ years of senior full-stack experience, comfortable owning projects end-to-end and shipping to production weekly.
Apply: https://www.opendate.io/careers/senior-full-stack-software-e...
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.
Apply at: https://serpapi.com/careers
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 a full-stack candidate without about 5 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://jobs.ashbyhq.com/Scholarly/d4c84468-fd4b-4dd7-9b22-2...
I'm Ryan, an EM and engineer here at YC. We have a small, 18-person software team with no PMs -- engineers own everything end-to-end.
We build the software behind YC's $6B in investments: tools that help partners evaluate thousands of startups per batch, AI-powered apps that founders use every day, and platforms like Work at a Startup that connect candidates with YC companies. Engineers get unlimited AI tokens -- both for development and to build AI-powered products. What wouldn't you build to help founders + YC with that much firepower?
What makes this different from other roles:
* You'd learn more about startups here than you could possibly imagine. Every batch brings hundreds of founders building things across every industry, and you're right in the middle of it.
* We attend Demo Day, founder dinners, and work directly with partners and many of the companies. (They make great products!)
* We pay well, offer carry in the fund (like equity), and provide generous relocation support if you're not in SF yet.
Two roles open:
* Product Engineer -- full-stack, own the product lifecycle. Rails/React stack. Build tools that power how YC invests in and supports startups. It's a wide range, and sometimes it feels like labs-like work, other times it feels like a supersuit to power founders and our Partners like Garry and Jared.
* Community Builder and Software Engineer -- hybrid role. Run YC's talent-facing programs (meetups, tech talks, career expos) AND build the software that makes them scale. You need to be a great engineer and LOVE to build and support communities.
Checkout more about the roles, and email me directly if you're excited to learn more about startups than you will anywhere else - ryan@ycombinator.com