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April 8, 2026

Senior / Lead Ruby on Rails Developer

Senior • Remote

Gliwice, Poland

We are looking for a high-level Ruby on Rails Expert to take a key role in the development team. This position is designed for someone who excels in backend architecture but can also navigate the frontend landscape when needed. As a Senior or Lead Developer, you will be responsible for the technical direction of the project, ensuring high performance, and maintaining a robust codebase while communicating effectively with international stakeholders.

Responsibilities

  • Technical Leadership: Leading the backend development lifecycle using Ruby on Rails.

  • Architecture: Designing and implementing scalable, secure, and maintainable backend services.

  • Full-stack Support: Collaborating on the frontend layer, specifically with React (experience here is a big plus).

  • Code Quality: Conducting code reviews, mentoring team members, and establishing best development practices.

  • Communication: Acting as a technical point of contact, ensuring clear alignment between technical goals and business needs.

Requirements

  • Expertise: Mastery of Ruby on Rails and the Ruby language.

  • Frontend: Practical experience with React (highly desirable).

  • Ownership: Proven ability to lead projects or significant technical modules.

  • Soft Skills: Proactive attitude, strong problem-solving skills, and a "Lead" mindset.