Senior Java Developer
New
Poland (Remote)Full-TimeSenior
Salary30,000 - 35,000 PLN per month
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Job Details
- Languages
- English B2+
- Experience
- 6+ years
- Required Skills
- JavaSpring BootCI/CDMicroservicesLLM
Requirements
- 6+ years of Java backend experience
- Strong Spring Boot expertise
- Experience modernising legacy systems at scale
- Background in banking, fintech, trading or similar high-reliability domain
- Solid multithreading knowledge (concurrency, locking, atomics)
- Practical use of AI dev tools – Claude Code, GitHub Copilot or similar
- Strong API design and microservices architecture knowledge
- English B2+
Responsibilities
- Modernise legacy Java services using AI-assisted analysis, refactoring and testing
- Build AI-powered CI/CD pipelines with automated code review, test generation and security scanning
- Develop MCP servers and LLM-based tooling for other engineering teams
- Ship measurable results: faster APIs, better performance, higher reliability
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