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Senior IT Developer

Freelancehybrid⏱ > 12 months5+ yrs📍 Warsaw, Poland, 🇵🇱 Poland🗣 English

Senior backend developer building security testing automation tools.

Develop backend features for an automated security retest platform, primarily using Python and Java with Spring Boot. You'll design REST APIs, integrate external security tools, and write test automation in a hybrid setup (3 office days weekly in Warsaw/Gdańsk/Gdynia). Requires strong backend experience and familiarity with application security concepts; knowledge of DAST/SAST tools and LLM APIs is valued.

Tech stack
PythonJavaSpring BootREST APIsDockerCI/CD
Rate
150 PLN/h
via

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Found at a specialist agency · listed 8 October 2026 · InsideJobs links you to the original posting.