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Senior Ruby on Rails Developer
  • Warsaw
Senior Ruby on Rails Developer
Warszawa, Warsaw, Masovian Voivodeship, Polska
LLINFORMATICS
6. 3. 2026
Informacje o stanowisku

technologies-expected :


  • Ruby on Rails
  • Active Record
  • RSpec
  • AWS
  • Heroku
  • RDBMS
  • PostgreSQL
  • React.js

responsibilities :


  • Implementing new functionalities on our client’s platform.
  • Solving complex programming challenges while improving your knowledge.
  • Conducting regular code reviews / PR reviews for your colleagues.
  • Maintaining existing code and fixing bugs.
  • Writing unit, integration, and E2E tests.
  • Contributing to frontend components using React when needed.
  • Supporting rapid iteration, experimentation, and data-driven development initiatives.
  • Optimizing application performance, reliability, and scalability.
  • Collaborating with Product Managers and cross-functional teams to align engineering execution with product vision.

requirements-expected :


  • 6+ years of experience in Ruby on Rails.
  • Familiarity with Active Record and RSpec.
  • Experience working on production applications in AWS or Heroku.
  • Experience working with RDBMS like PostgreSQL.
  • Experience writing tests / following a TDD approach or strong testing culture.
  • Experience building server-side applications using the MVC pattern or similar.
  • React experience (building components, integrating APIs).
  • Understanding distributed systems and resilient applications.
  • Practical knowledge of REST API communication.
  • Polish and English at B2+ minimum level.
  • Familiarity with Agile methodologies (Scrum, Kanban).

offered :


  • Flexible Working Hours – We focus on results! Manage your time, keep your team informed about your availability, and attend key meetings.
  • Work from Anywhere – Choose your ideal setup! Work 100% remotely within the EU, go hybrid, or enjoy our Warsaw office, fully equipped for productivity.
  • Comprehensive Onboarding – From day one, we ensure you feel comfortable and supported, so you can quickly become part of the team.
  • Flat Structure – We value initiative and open communication. Every voice matters here!
  • Real Impact on How We Work – You’ll have the opportunity to shape our processes, tools, and ways of working. Your ideas won’t be left in a drawer—they will directly influence daily collaboration and the effectiveness of the entire team.
  • Positive Company Culture & Team Spirit – We create an environment where everyone feels appreciated and comfortable.
  • Modern Work Methods – We use cutting-edge project management techniques inspired by the IT world.
  • Transparent Communication – Regular 360° feedback sessions and mentor support to help you grow.
  • Top-Notch Equipment – Get a MacBook for your work. If you choose to work from our Warsaw office, youll also have access to a 34” (16:9) widescreen monitor and an ergonomic standing desk.
  • Weekly English Lessons – Optional classes with a native speaker to help you improve your skills.

  • Praca Warszawa
  • Warszawa - Oferty pracy w okolicznych lokalizacjach


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