Senior Java Consultant

Type of contract: B2B contract

Salary range: 125-160 PLN/H 

What will you do?

You will build and evolve high-performance backend services and APIs for modern, large-scale digital platforms used by a global financial services client, working hands-on in a collaborative international environment with a strong focus on reliability, security, and engineering quality.

Your tasks

• Design and develop backend services in Java


• Build and maintain RESTful APIs and microservices used at scale


• Collaborate with product managers, architects, and engineers to deliver new features


• Contribute to system design with focus on performance, reliability, and security


• Work in Agile delivery with CI/CD pipelines and DevOps ways of working


• Review code and write automated tests to ensure quality and maintainability


• Support applications in production and troubleshoot issues when needed


• Continuously improve code quality, tooling, and engineering practices

Requirements

• Commercial experience with Java 8+ or 11+ or 17+


• Strong knowledge of Spring and Spring Boot


• Hands-on experience with REST APIs


• Hands-on experience with microservices architecture


• Experience with SQL databases such as PostgreSQL or Oracle


• Familiarity with CI/CD pipelines


• Experience with Git


• Experience with Maven or Gradle


• Experience working in Agile or DevOps teams


• Very good English communication skills


• Openess to hybrid work 2 days a week from our client office (for candidates from Kraków) and 6 days per month for candidates based outside Kraków.

Nice to have

• Experience with AWS or GCP or Azure


• Experience with Docker


• Experience with Kubernetes


• Experience with Kafka or MQ or other event-driven messaging systems


• Experience in banking, finance, or other regulated environments