> Markdown version of [/jobs/ext/726776-ruby-software-engineer-iii](https://www.wearedevelopers.com/jobs/ext/726776-ruby-software-engineer-iii). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Ruby Software Engineer III

- **Company:** Know Ink, LLC
- **Location:** St. Louis, MO, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Automation of Tests, Code Review, Relational Databases, Software Debugging, Integrated Development Environments, PostgreSQL, Scrum Methodology, Query Optimization, Ruby on Rails, Ruby, Test-Driven Development (TDD), ReactJS, Rspec, Backend, Git, Vue.js, Front End Software Development, Restful APIs, Docker
- **Published:** June 29, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=8e212d9faa17000d

## About the Role

Do you have experience in Ruby on Rails?, * 3-5 years of professional Ruby on Rails experience

 * Solid understanding of RESTful API design and implementation
 * Comfortable with relational databases (PostgreSQL preferred) and writing efficient queries
 * Familiar with Git and collaborative development workflows
 * Experience with test-driven development (RSpec, Minitest, or similar)
 * Strong communication skills, you can explain what you're building and why
 * Self-directed and comfortable asking for help when you need it
 * Genuinely curious about how things work and how to make them better

Nice to Have

 * Experience with JavaScript/React or Vue on the frontend
 * Background in govtech, civic tech, or working in regulated industries
 * Familiarity with background job processing (Sidekiq, Delayed Job, etc.)
 * Docker or containerized development environment experience
 * Exposure to CI/CD pipelines

## Description

We're looking for a mid-level Ruby developer to join our engineering team and help build and maintain the software that powers elections. You'll be working on real, meaningful problems, complex data workflows, client-facing tooling, and backend systems that have to work flawlessly when it counts most. You'll collaborate closely with cross-functional teammates and have real ownership of your work from day one.

This is a hybrid role, three days a week in our St. Louis office, two days remote. We genuinely like each other here, so the in-office days don't feel like a punishment.

What You'll Do

 * Design, build, and maintain Ruby/Rails applications that are reliable, scalable, and clean
 * Collaborate with product, QA, and client-facing teams to translate requirements into solid technical solutions
 * Write and maintain automated tests, we take quality seriously
 * Participate in code reviews and contribute to engineering best practices
 * Troubleshoot and debug production issues, then actually fix the root cause
 * Contribute to technical documentation and keep it current
 * Work within Agile/Scrum workflows and stay in sync with sprint goals
 * Bring your ideas, we want engineers who think, not just execute


## Related Videos

- [Coffee with Developers: David Heinemeier Hansson](https://www.wearedevelopers.com/videos/875-coffee-with-developers-david-heinemeier-hansson)
- [Coffee with Developers - Adam Wiggins](https://www.wearedevelopers.com/videos/919-coffee-with-developers-adam-wiggins)
- [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94)
- [Always on the Right Track with Rails with Eileen Uchitelle, Senior System Engineer at GitHub](https://www.wearedevelopers.com/videos/100358-always-on-the-right-track-with-rails-with-eileen-uchitelle-senior-system-engineer-at-github)
- [Coroutine explained yet again 60 years later](https://www.wearedevelopers.com/videos/690-coroutine-explained-yet-again-60-years-later)
- [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews)

## Related Articles

- [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline)
- [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)
- [Dev Digest 131 - AI'm not sure about OSS](https://www.wearedevelopers.com/magazine/472-dev-digest-131-ai-m-not-sure-about-oss)
- [Should senior developers refuse interview coding challenges?](https://www.wearedevelopers.com/magazine/29-should-senior-developers-refuse-interview-coding-challenges)
- [WeAreDevelopers Dev Digest Issue 116 - The new search wars…](https://www.wearedevelopers.com/magazine/445-wearedevelopers-dev-digest-issue-116-the-new-search-wars)
- [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again)