Ruby on Rails Fullstack Developer

We’re looking for a mid/senior Ruby on Rails Developer for a long-term collaboration who’ll help us build new products and improve our existing ones (CMS, Stock Management System - both are mature and well-maintained).

If you’re able to:
- Write clean and scalable code in Ruby
- Learn new technologies
- Integrate with external providers (APIs)
- Implement simple frontend where needed
- Vibe-code some prototypes using technologies you might not be an expert in - but still enjoy exploring
… send your CV, you should be a great match :)

We care about code quality (we have code reviews, CI/CD and pair programming sessions) and a good atmosphere at work. We put a lot of effort on exploring AI capabilities in making our daily work easier, faster and more fun.

Current tech stack and tools:

• Ruby 3/4 (depending on the project)

• Ruby on Rails 7/8 (depending on the project)

• InertiaJS + Vue on the frontend layer

• Claude Code

• Rspec

• Postgresql

• Redis

• Sidekiq

• Docker

• Gitlab (including Gitlab CI/CD)

• Kubernetes

What we're looking for:

• At least 4 years of commercial experience in Ruby on Rails

• We are looking for someone with mid-level experience or higher

• Communicative proficiency in Polish and English at a minimum of B2 level

Required skills:

• Ruby

• Ruby on Rails

• Rspec

• HTML, CSS

• Javascript

• Docker

• Understanding how CI/CD works

• Agentic coding, including understanding of what skills / MCP servers are

Nice to have:

• Any experience in implementing MCP servers

• Experience with InertiaJS

• Experience with Vue.js / Stimulus.js or other modern front-end framework

• Experience in using front-end components frameworks such as Bootstrap, Foundation, Bulma, etc.

• Kubernetes

• Understanding of OAuth2

• OpenAPI

• Experience in integrating with AI solutions provider, such as OpenAI, Elevenlabs etc. via their APIs

What you'll be responsible for:

• Implementing new features (in new projects developed from scratch but also in existing projects - all of them are developed by us)

• Refactoring and optimizing existing code

• Having an impact on the tech stack (we’re open to introducing new technologies when it makes sense)

• Contributing to product development (we welcome ideas for improving our products)

• Performing code reviews

Benefits:

• Salary range PLN 15 000 – 20 000 + VAT (B2B)

• Flexibility to choose between working in our Warsaw office (Mokotów), a hybrid model, or fully remote with occasional office visits

• MacBook Pro

• Option to sign up for a sports card and medical coverage