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Java Lead / Senior Developer

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

Senior Java developer leading modernization and microservices work in banking.

Lead technical initiatives on a long-term B2B contract in Warsaw's banking sector. You'll design and evolve microservice architectures, refactor legacy systems using established migration patterns, and work with Oracle/PostgreSQL at scale. The role expects you to mentor the team, conduct code reviews to high standards, and evaluate AI-assisted development responsibly—with at least one day per week on-site.

Tech stack
JavaSpringSpring BootOraclePostgreSQLMicroservicesLLMAI Agents
Rate
1300 PLN/day
via

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Found at a specialist agency · listed 18 August 2026 · InsideJobs links you to the original posting.