Senior Java Developer – Banking Microservices Expert

Empower scalable financial systems — drive innovation in banking technology!
Warsaw-based opportunity with remote work model (up to 5 days remote per week).

As a Senior Java Developer, you will be working for our client, a leader in the banking industry, dedicated to building and maintaining core domain systems that serve internal clients. Join us in creating robust, event-driven microservices that shape the future of banking infrastructure, fostering seamless digital experiences and technological excellence.

Your main responsibilities:

• Develop and maintain core banking services using Java 21/25, Spring Boot 4.0, and MongoDB.
• Design and implement event-driven architectures utilizing Apache Kafka and Schema Registry.
• Collaborate on microservices ecosystem, ensuring high quality and scalability.
• Work with legacy code and contribute to system evolution within a complex environment.
• Ensure code quality through tools like JaCoCo and SonarQube, following best practices.
• Participate in CI/CD pipelines using OpenShift, Jenkins, and Maven.
• Apply Domain-Driven Design (DDD), CQRS, and Hexagonal architecture principles.
• Work independently within a mono-repo approach, managing multiple repositories and shared libraries.

You're ideal for this role if you have:

• 7+ years of experience in Java development, ideally within banking or financial services.
• Deep knowledge of Java (21/25), Spring Boot, and MongoDB.
• Strong experience with Kafka and event-driven architecture.
• Proficiency with REST APIs, Git, Maven, and CI/CD tools.
• Ability to work with legacy systems and develop scalable solutions.
• Solid understanding of microservices architecture and domain modeling.

It is a strong plus if you have: (optional)

• Certifications or experience in OpenShift, Jenkins, or related cloud technologies.

Language Required for the role:

• Communicative Polish.

Eligibility for the role:

• Only candidates with an existing legal right to work in the European Union will be considered for this role.

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Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.