Join us, and build the technology powering tomorrow’s digital banking experience!Kraków - based opportunity with hybrid work model (2 days/week in the office).As a Senior Java Developer, you will be working for our client, a global financial services organization modernizing its digital banking ecosystem and delivering secure, scalable, and high-performance applications. You are contributing to the design and development of backend services, collaborating with cross-functional teams, and ensuring reliable integration across complex architectures. In this role, you are applying best engineering practices, supporting production deployments, and participating in strategic technical decisions that shape next-generation platforms. You are continuously improving code quality, enhancing system performance, and staying current with emerging technologies to support long-term innovation.Your main responsibilities:Designing and developing high-quality Java and Spring-based solutionsCollaborating with cross-functional teams to deliver new features and enhancementsEnsuring code quality by performing code reviews and creating unit testsOptimizing application performance and troubleshooting technical issuesSupporting deployment and monitoring activities in production environmentsParticipating in architectural discussions and technical decision-makingContributing to CI/CD pipelines and automation practicesStaying informed on industry trends and emerging technologiesWriting clear and maintainable technical documentationIntegrating secure coding practices into all development activitiesYou're ideal for this role if you have:5+ years of professional Java development experience (Java 8+)Strong knowledge of object-oriented programming and design patternsHands-on experience with Spring and Spring BootProficiency in building RESTful APIsExperience with version control systems such as GitKnowledge of unit testing frameworks like JUnit or MockitoExperience working with CI/CD tools and processesUnderstanding of container technologies such as Docker or KubernetesUnderstanding of messaging systems like Kafka or IBM MQExperience with ORM frameworks such as Hibernate or MyBatisIt is a strong plus if you have:Exposure to cloud platforms such as AWS, GCP, or AzureExperience working in highly regulated or financial environmentsFamiliarity with performance-tuning Java applicationsExperience supporting production systems in large distributed architecturesWe offer you:ITDS Business Consultants is involved in various, innovative, and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people. The offer includes:Stable and long-term cooperation with very good conditionsEnhance your skills and develop your expertise in the financial industryWork on the most strategic projects available in the marketDefine your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several yearsParticipation in Social Events, training, and work in an international environmentAccess to an attractive Medical PackageAccess to Multisport Program#GETREADYInternal job ID #8127You can report violations in accordance with ITDS’s Whistleblower Procedure available here.