Top 1 Ruby on rails developer Jobs in Missouri

Ruby Software Engineer III
Know Ink, LLC —St. Louis, MO
- Full-time
- Hybrid work
- Software troubleshooting
- Mid-level
- Office
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6d

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Ruby Software Engineer III
Know Ink, LLC —St. Louis, MO
Solid understanding of RESTful API design and implementation. Collaborate with product, QA, and client-facing teams to translate requirements into solid…
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6d

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Senior Software Engineer
The Piada Group —Columbus, OH
The Senior Software Engineer role is responsible for developing, maintaining, and improving Piada’s company sites, internal analytics dashboard, and point-of-…
$120,000 - $180,000 a year
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13d
Full Stack Software Developer - Cardio Partners - Dublin, OH
Sarnova —Dublin, OH
Customers’ emergency preparedness needs are met via Cardio Partners’ nationwide CPR training courses and state-of-the-art program management services.
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Ruby Software Engineer III

Know Ink, LLC
St. Louis, MO

Quick Apply

Job Details

Full-time
6 days ago

Qualifications

Ruby on Rails

Full Job Description

KNOWiNK

Mid-Level Ruby Developer

St. Louis, MO | Hybrid (3 days in office / 2 days remote) | Full-Time

About KNOWiNK

KNOWiNK builds election technology that keeps democracy running. Our platform powers poll worker check-in, voter verification, and election management for jurisdictions across the country. We're a tight-knit team that cares deeply about what we build, because what we build matters. If you want your work to actually mean something, you're in the right place.

The Role

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

What We're Looking For

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

Why KNOWiNK

Your work directly supports the integrity of U.S. elections, 1 in 4 voters in the US uses one of our products that's not nothing
Collaborative, low-ego team that values good ideas over seniority
Hybrid schedule with real flexibility baked in
Competitive salary and benefits
Opportunity to grow with a company that's scaling fast and doing meaningful work

KNOWiNK is an equal opportunity employer. We celebrate diversity and are committed to building an inclusive environment for all employees.

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Ruby Software Engineer III

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