Senior Java Developer

A global investment bank is expanding its engineering hub in Kraków, focusing on modernising a business-critical Collateral & Margining platform used across global markets. The team supports a large-scale monolithic platform while building a new microservices-based collateral platform using modern engineering practices and cloud-native tooling.

• Strong experience with Java 17/21, Spring Boot, and microservices
• Knowledge of PostgreSQL and DevSecOps pipelines
• Experience working in Agile and/or DevOps environments
• Strong communication skills and ability to collaborate across global teams
• Proven experience delivering complex systems from concept to production
• Ability to translate functional requirements into scalable technical solutions
• Strong TDD discipline (JUnit, integration tests, Cucumber)

Nice to have:

• Experience with AI-assisted development tools (e.g., GitHub Copilot)
• Spring Cloud components (Hystrix, Eureka, Zuul, Sleuth, Feign, Ribbon)
• Distributed caching/in-memory data stores (Redis, Hazelcast, Coherence)
• REST APIs and messaging (MQ, Solace)
• Automated deployment tools (Ansible)
• TypeScript, Angular, HTML5
• Cloud exposure (GCP/AWS)

• Design, build, and maintain high-quality Java microservices
• Contribute across the full software development lifecycle, from design to production support
• Apply Agile and DevOps principles to improve delivery velocity
• Use TDD (JUnit), integration tests, regression tests, and Cucumber for end-to-end scenarios
• Collaborate closely with QA, product, and architecture teams
• Mentor junior engineers and support knowledge-sharing across the team
• Support production systems including incident resolution, monitoring, and problem management
• Build automation and tooling to improve operational efficiency

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