Senior Java Software Engineer (Core API Unit)

Join us and get a once-in-a-lifetime opportunity to literally build a local banking champion!

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 a Senior Java Software Engineer within our Core API Unit, you will play a key role in shaping and developing the services that support Luminor's core platform. Working with technologies such as Java 21, Spring Boot, Kafka, AWS, and cloud-native solutions, you'll help create reliable, scalable, and high-performing systems in a modern event-driven environment.

We're looking for someone who enjoys solving complex technical challenges, takes ownership of their work, and values collaboration. In this role, you'll be part of an Agile team focused on delivering secure, resilient, and scalable solutions that serve the entire organization.

What You'll Do

• Develop, enhance, and maintain solutions for APIs, messaging, service integration, workflow processing, and file management across the bank
• Design and build event-driven applications with Apache Kafka as a key technology
• Own the full lifecycle of solutions, from technical design through delivery and production support
• Ensure solutions meet high standards of quality, security, performance, and availability
• Contribute to architectural discussions and actively influence technical direction
• Create Proofs of Concept to evaluate new technologies and approaches
• Partner with engineers, architects, and business stakeholders to deliver effective solutions
• Investigate and resolve production issues while continuously improving platform stability
• Build a strong understanding of Luminor's products, systems, and business processes
• Work within a cross-functional Agile team
• Collaborate with colleagues across an international organization

• Solid experience developing enterprise applications using Java (ideally Java 21) and Spring Boot
• Demonstrated experience building distributed and event-driven systems using Kafka or similar technologies
• Practical experience with AWS, container platforms such as Kubernetes and Docker, and CI/CD tools such as Argo CD
• Strong understanding of microservices architecture and API development principles
• Experience working with SQL databases; familiarity with NoSQL technologies is considered an advantage
• A proactive ownership mindset and accountability for delivered solutions
• Passion for solving complex engineering challenges and continuously improving systems
• Strong collaboration and knowledge-sharing skills
• Fluent English communication skills, both written and spoken, due to working in a Pan-Baltic environment

• Flexibility. Flexible working hours, Hybrid work, and the possibility to work from anywhere in the EU, Iceland, Switzerland, and the UK (in total 90 days per year)
• International teams. Teams that go outside Pan-Baltic borders, where people value challenging work together with good humor and having fun
• Culture. You’ll be joining a team where things move fast, ideas flow freely, and change is part of the everyday. It’s a dynamic environment that keeps you learning, growing, and never bored
• More vacation. Additional weeks of vacation are available to all employees who have been in the company for 1 year or more
• Volunteer time off. We care about giving back to society, therefore, you will get additional days off for volunteering purposes
• Paid leave. We are proud of our employees who are participating in military training. Therefore, Luminor offers 30 fully paid calendar days for military training every year
• Health benefits. A competitive benefits package in addition to your salary that includes health insurance after the first 3 months pass in all three Baltic states, as well as Health days in case of your absence due to sickness without a doctor's note needed
• Wellbeing. Access to tools and resources that help you feel good and be productive at work and in life
• Professional growth. Internal and external training programs, LinkedIn learning, workshops, conferences, online training, etc
• Special Offer for Luminor products & services. Enjoy special offers & pricing for products and services provided by Luminor