Senior Java Developer

Salary: 1000-1400 PLN/day on B2B Work model: elastic hybrid from Gdańsk/ Gdynia (2 days per week from the office) Why choose this offer? • You can expect a flexible work organization • The international work environment will give you the opportunity to interact with the English language on a daily basis • Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) • The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a financial project focused on building a modern Straight-Through Processing (STP) Lending platform, designed to support end-to-end loan processing in a highly automated and scalable way. The system will play a central role in the lending ecosystem, integrating with multiple internal and external services, ensuring efficient data flow and real-time event processing. As this is a greenfield initiative, you will have a direct impact on architectural decisions, technology choices, and development standards, helping to shape a robust backend platform from the ground up. Responsibilities you'll have • Designing and developing scalable backend services using Java and Spring Boot • Building and maintaining REST APIs for integration with external and internal systems • Implementing event-driven architecture using Kafka • Designing and managing persistence layers with JPA and relational databases • Managing database schema evolution using Liquibase • Collaborating closely with Product Owner and Business SMEs to refine requirements • Writing clean, maintainable, and testable code following best engineering practices • Leveraging AI-assisted tools (e.g., GitHub Copilot) to improve development efficiency • Participating in Agile ceremonies and contributing to continuous improvement • Ensuring high code quality through testing, code reviews, and best practices Expected competences and knowledge • 5y+ of experience as Java Developer • Strong experience in Java (Java 21+) with solid understanding of backend development • Extensive hands-on experience with Spring Boot framework • Deep knowledge of JPA/Hibernate and database design principles • Experience in building RESTful APIs and integrating distributed systems • Understanding of event-driven architectures (Kafka) • Familiarity with Maven for build and dependency management • Experience with Liquibase or similar tools for database versioning • Good understanding of clean architecture and software design principles • Experience working in Agile environments • Strong communication skills and ability to work in an English-speaking team • Nice to have: experience with Cucumber for BDD testing Technologies you'll work with • Java 21+ • Spring Boot • JPA / Hibernate • Apache Kafka • REST APIs • Maven • Liquibase • Relational databases (e.g., PostgreSQL, Oracle) • GitHub Copilot (AI-assisted development) • Cucumber (optional, for testing) Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture, which is conducive to people who place emphasis on work-life balance and feedback culture. Furthermore, all projects are executed in international teams, giving constant exposure to the English language.    About Jit Team The Human factor of IT - it's not just a slogan, it's a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 700 experienced experts. We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme. Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity. By supporting indigenous initiatives, we ensure the circulation of good energy.