Senior Ruby on Rails Developer (Remote)

Czym będziesz się zajmować?

We#39;re looking for a Senior Ruby on Rails Developer to join a project for a US-based HealthTech client.

You#39;ll write and review code, contribute to architecture decisions, optimize performance and care about code quality, working closely with PMs, designers and other developers. You#39;ll use AI every day to move faster, and you#39;ll be the one who makes sure the code is actually correct, secure and maintainable before it gets merged. quot;AI generated itquot; isn#39;t done. In healthcare, a subtle bug or a missed edge case costs more than time.

What you#39;ll do

• Design and build web applications in Ruby on Rails, including relational database design
• Work with cross-functional teams to define, design and ship new features
• Write automated tests that cover edge cases and overall reliability
• Fix bugs and improve performance
• Review code with the same standards, whether a person or AI wrote it
• Help define and improve internal standards for maintainability and style
• Talk directly with the client when needed: clarify requirements, discuss technical solutions and present your work
• Test new tools and workflows, and share what works with the team

Kogo poszukujemy?

• 5+ years commercial Ruby and Ruby on Rails
• Relational DBs (PostgreSQL); experience with NoSQL, caching, message brokers
• Client comms: REST API, WebSockets; auth: JWT, cookies, OAuth
• CI/CD, deployment tools, Docker, Git
• Design patterns, SOLID principles
• Automated tests with RSpec or similar
• Architecture contribution: business/functional/non-functional requirements, scalability
• Daily use of AI tools; ability to review AI-generated code
• Code review: giving and receiving
• Fluent English (client calls, demos, technical discussions)
• Fluent Polish (internal)
• Interest in HealthTech; focus on quality, security, compliance

Nice to have

• JS framework: Vue or React
• AWS or similar cloud platform
• Web servers (Nginx)
• HealthTech/pharmacy: HIPAA, e-prescribing, insurance, FHIR
• Experience embedded with client, consulting, FDE, or startup multitasking

This role probably isn#39;t for you if:

• You treat a ticket as done when code runs rather than tested, reviewed, maintainable long-term
• You prefer an unchanged stack/workflow for years; we adopt better tools regularly
• You avoid responsibility for merges; here you sign off final code

Czego wymagamy?

5 lat doświadczenia na podobnym stanowisku
Znajomości:

• Ruby
• Ruby on Rails
• Relational databases
• REST
• CI/CD
• Docker
• Git
• Design patterns
• Architektura systemu
• Narzędzia AI
• Code review

Mile widziane:

• NoSQL

Języki:

• Polski
• Angielski

Jakie warunki i benefity otrzymasz?

• 15k–20k PLN netto/m (B2B)
• B2B - Elastyczne godziny pracy (100%)
• Praca zdalna: Dowolnie
• Budżet szkoleniowy, Szkolenia wewnętrzne
• Pakiet medyczny, Ubezpieczenie, Pakiet sportowy
• Kawa / Herbata, Zimne napoje
• Parking, Parking rowerowy
• Płatny "urlop" dla B2B

Kim jesteśmy?

Momentum is a Wrocław-based team building software for healthcare companies worldwide. For years we#39;ve helped HealthTech startups and scaleups turn ideas into compliant, production-ready products. Now we#39;re also building our own, in wearables and medical data integration, and part of that work is open source.

We work AI-first. AI is part of our everyday work, in development and in delivery. We keep testing new tools, agents and workflows, and when we find a better way to build, we change how we work.

Curious how we work? See what we#39;re building: Open Wearables on GitHub.