Senior Backend Java Developer

Jit Team employs over 770 experienced experts and collaborates with clients worldwide to create innovative IT solutions delivered by specialized teams. The company has a decade-long partnership with a leading financial group in the Nordic countries, executing over 60 projects with more than 200 staff involved. The client operates globally in financial services, emphasizing a Scandinavian culture fostering work-life balance and a feedback culture. Jit Team is a Polish company with over 15 years of activity, actively supporting educational and charitable initiatives.

• Several years of experience as a Senior Java Developer
• Strong expertise in Java development
• Excellent knowledge of Spring Boot
• Hands-on experience with application modernization and migration projects
• Practical experience working with Java 21
• Strong understanding of relational databases and SQL, particularly PostgreSQL
• Experience with messaging technologies such as JMS and MQ
• Knowledge of OpenAPI and AsyncAPI specifications
• Experience with Git and modern CI/CD practices
• Solid understanding of software design patterns and object-oriented programming principles
• Strong communication skills and ability to work in a collaborative environment

• Lead application modernization activities, including upgrades to **Java 17+/**Java 21 and Spring Boot 3.3.x
• Design, develop, and maintain Java-based applications supporting savings and investment products
• Build and enhance calculation engines ensuring compliance with tax regulations across multiple countries
• Implement solutions supporting complex business processes, integrations with tax authorities, and customer reporting
• Participate throughout the entire software development lifecycle from requirements analysis to deployment
• Collaborate with business stakeholders and financial analysts to translate business requirements into technical solutions
• Contribute to system architecture discussions and technical improvements