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Senior Backend Developer (Java, AWS) Miejsce pracy: Kraków Technologies we use Expected SQL AWS Java Tomcat Spring Boot Spring Framework Kafka Optional Hadoop Apache Spark React.js About the project We are looking for a Senior Java Engineer to join our team building a cloud-native platform used by global Life Sciences organisations. You will work on backend services supporting pharmaceutical companies in analysing potential adverse drug effects. This role offers a mix of technical ownership, system design, and hands-on development in a highly collaborative, international environment. Your responsibilities Design, develop, and maintain backend services built with Java, Spring, Spring Boot, and AWS. Contribute to architectural decisions and system-level discussions. Ensure stability, scalability, and performance of distributed services. Write clean, maintainable code and participate in code reviews. Collaborate with cross-functional teams to translate requirements into technical solutions. Support deployment automation and production operations. Troubleshoot complex technical issues and propose improvements. Our requirements Minimum 4–7 years of experience in backend development with Java. Strong knowledge of Spring and Spring Boot. Experience with AWS in production environments. Solid understanding of microservices architecture. Hands-on experience with SQL and relational databases. Familiarity with Tomcat or similar application servers. Ability to work independently, make informed technical decisions, and contribute to system design. Good communication skills. Optional Experience with Big Data tools (Hadoop, Spark). Familiarity with Kafka or other event-driven systems. Ability to assist occasionally with small tasks in React. Experience working on projects in healthcare or Life Sciences. What we offer Stable employment in a fast-growing company. Flexible and remote-friendly working model. Health and wellbeing benefits. Learning and development opportunities. Modern equipment and comfortable work environment. Benefits sharing the costs of sports activities life insurance ITEAMLY SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ As Venture Building, we create profitable technology companies from scratch. We collaborate with partners who share similar aspirations and are open to leveraging the potential of their networks, cultivated over years. We regularly launch new projects founded on long-term, amicable relationships with our associates.