Extensive experience (minimum 5 years) with Java 17+, JVM internals, concurrency, and memory management, Strong knowledge of Spring Boot, including Spring MVC, Spring Data JPA, and Spring Security, Proven expertise in designing and developing microservices-based applications, Familiarity with AI/LLM tools to accelerate coding, refactoring, and bug fixing (e.g., Copilot, Cursor), Ability to leverage AI agents for automating unit tests, documentation, and PR descriptions, Expertise with AWS cloud and observability tools such as Grafana, OpenTelemetry, or DataDog, Proficiency with SQL and NoSQL databases, CI/CD pipelines, and Git version control, Fluent Polish required, Residing in Poland required