About the job
Sigma Software Group seeks a Principal Full-Stack Engineer with deep frontend expertise for its Warsaw office. The position involves designing and building web applications that put user experience at the center. Collaboration is essential, as the role works closely with colleagues from different disciplines to ensure software solutions meet client expectations.
What you will do
- Design and implement web applications with a strong emphasis on frontend quality and usability
- Collaborate with cross-functional teams to deliver reliable, high-quality software
- Lead technical projects and set direction for development efforts
- Mentor junior engineers and help shape team best practices
Requirements
- Extensive experience in both frontend and backend development
- Demonstrated ability to lead projects and guide teams
- Proven track record of mentoring and supporting junior developers
- Strong commitment to building user-centric software
This Warsaw-based role offers the opportunity to influence client projects and contribute to the growth of the team.

