Expert Java Developer

Expert Java DeveloperMiejsce pracy: GdańskTechnologies we useExpectedJavaKafkaSQLOptionalKubernetesAbout the projectSalary: 1100 - 1300 PLN/day on B2BWork model: hybrid from Gdańsk (2, 3 days per week from the office)You will be involved in a financial project focused on supporting the PIP (Payments Information Provisioning) Downtown team in delivering SEK Batch functionalities. The project plays a key role in building and maintaining distributed, high-performance backend systems within the financial domain, with a strong emphasis on event-driven architectures and real-time data processing.We are looking for an Expert Java Developer with strong experience in Kafka-based event-driven systems and relational databases, who is comfortable working in complex, distributed environments. The ideal candidate combines hands-on backend development with a solid understanding of software architecture, scalability, and clean code principles, and can actively contribute to both implementation and technical decision-making.Your responsibilitiesSupport the PIP Downtown team in delivering SEK Batch functionalitiesDesign, develop, and maintain backend services in JavaDesign, implement, and optimize Kafka producer and consumer logicBuild and operate services running in Kubernetes-based environmentsWork with relational databases (Oracle, DB2, MSSQL or similar)Build distributed, highly-available, and high-throughput applicationsApply architectural patterns such as microservices, domain-driven design, and event sourcingEnsure clean, maintainable, and high-quality codeOur requirementsJava – Expert level (minimum 8 years of experience working as a Java Developer)Kafka – Expert level, including designing and optimizing producer and consumer codeSQL – Senior level (Oracle, DB2, MSSQL or similar RDBMS)Proven experience in building distributed, highly-available, high-throughput systemsHands-on experience in applying domain-driven design, event sourcing, microservices architecture, and clean code principles in real-world projectsOptionalData engineering backgroundKubernetes – hands-on experience in running and operating backend servicesThis is how we organize our workThis is how we workat the client's siteDevelopment opportunities we offerassistance in preparation to public speechesconferences abroadconferences in Polanddevelopment budgetexternal trainingintracompany trainingmentoringsoft skills trainingsubstantive support from technological leaderssupport of IT eventstechnical knowledge exchange within the companyWhat we offerYou can expect a flexible work organizationThe international work environment will give you the opportunity to interact with the English language on a daily basisScandinavian 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 meetingsBenefitssharing the costs of sports activitiesprivate medical caresharing the costs of professional training & courseslife insuranceintegration eventscorporate sports teamcorporate librarychristmas giftsbirthday celebrationemployee referral programopportunity to obtain permits and licensesJit Team Summer OfficeJit CommunitiesEnglish lessonsRecruitment stagesHR InterviewTechnical TalkMeeting with the ClientThe OfferClient – 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.Jit Team sp. z o.o.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 500 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.