Principal/Senior Software Engineer
Poland and Central-Eastern Europe · Bulgaria; Poland; Romania
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- Company
- Poland and Central-Eastern Europe
- Location
- Bulgaria; Poland; Romania
- Posted
- September 18, 2026
About this job
designing and developing production-grade full-stack web applications and enterprise software, providing hands-on technical leadership and helping establish engineering patterns, standards, and best practices, translating product requirements and emerging ideas into pragmatic, scalable technical solutions, working across frontend and backend, with a strong focus on TypeScript, JavaScript, React, and Node.js or Deno, designing and integrating REST APIs, webhooks, event-driven integrations, and third-party SaaS platforms, contributing to technical decisions around authentication, authorisation, data access, security, performance, and reliability, mentoring engineers, sharing knowledge, and helping raise engineering capability across the team, collaborating with Product, Architecture,…
This is a short summary.
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Most-requested skills in Poland
Based on 1,034 Poland vacancies that list requirements, these are the skills employers ask for most often.
- Java41% of postings
- SQL32% of postings
- Python27% of postings
- Spring24% of postings
- CI/CD19% of postings
- React19% of postings
- JavaScript18% of postings
- Git16% of postings
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