Senior Java Software Engineer (Core Financial Services)

Join our team as a Senior Java Software Engineer! Yes, you can! That's our attitude towards our work, ambitions, ideas, and relationships. We at Luminor believe that anyone has the potential to achieve big things and encourage everyone to achieve them, professionally and personally. Whoever you are and whatever your role is, with Luminor, you will get a once-in-a-lifetime opportunity to build a local banking champion. As Luminor continues its transformation journey, we are expanding our internal engineering capacity to build stronger in-house expertise and support the delivery of strategic technology initiatives. As a Senior Software Engineer, you will design and build robust, scalable systems that power Luminor’s core platform. You will primarily work with Java 21, Spring Boot, Kafka, and cloud-native technologies, solving complex engineering challenges in event-driven and distributed architectures. This role is for someone who enjoys ownership, values clean design, and thrives in collaborative environments. You'll work in a dynamic Agile setup, ensuring high standards of scalability, performance, and reliability across all business streams. How You Will Make an Impact: Design, implement, and continuously improve systems for messaging, service-to-service communication, APIs, file, and workflow management, supporting all business streams across Luminor Build and evolve event-driven systems using Apache Kafka as a core backbone Take ownership of solutions end-to-end — from design to production stability Ensure high standards of quality, security, availability, and performance, applying engineering best practices Drive technical discussions, contribute to architecture decisions, and challenge existing solutions where needed Build Proof of Concepts to validate ideas and new technologies Collaborate closely with engineers, architects, and stakeholders to solve complex problems together Troubleshoot production issues, perform testing, and continuously improve system reliability Gain deep understanding of the bank’s processes and products Be part of a cross-functional Agile team Work in an international environment What Makes You a Great Fit: Strong hands-on experience in software development with Java (preferably Java 21) and Spring Boot Proven experience designing and building distributed, event-driven systems (Kafka or similar) Hands-on experience with AWS cloud platform and container orchestration (e.g. Kubernetes, Docker), as well as CI/CD pipelines (e.g. Argo CD) Experience with modern microservices architecture and API design Solid understanding of SQL databases; experience with NoSQL databases is a plus Strong ownership mindset — you take responsibility for what you build Ability and motivation to tackle challenging engineering problems Team player who values collaboration and knowledge sharing Fluent English is required in spoken and written communication due to working on the Pan-Baltic…