Senior Java Developer

As a Senior Java Software Engineer (Luminor WebService), you will play a hands-on role in solving real, high-impact challenges across our financial transaction system. Key focus areas include:

• Code Refactoring & Technical Debt Reduction: Analyze, clean up, and improve legacy code for better readability, performance, and maintainability. Simplify overengineered flows and improve business logic consistency.
• Modernizing the Software Stack: Upgrade Java versions, refactor legacy services, manage dependencies, and transition outdated SOAP-based flows to scalable, cloud-native components
• Database/UI Remodeling: Optimize PostgreSQL performance, resolve duplicate access issues, improve access rights logic, and streamline slow-loading UI workflows caused by large data volumes
• Data Management: Implement efficient purging, retention strategies, and historical data clean-up
• Bug Fixes and Root Cause Analysis: Address existing issues in SOAP flows, access management, and data mismatches between UI and DB
• Cloud Integration & Flow Redirection: Work with S3, routing logic, and new microservice flows to support an incoming payment engine
• XML Management & Regulatory Support: Handle ISO standard changes, XML schema evolution, and validation across multiple versions
• Feature Development: Build support for e-invoices, payment limits, statements from external banks, and new payment-related features
• Documentation & Automation: Improve internal documentation and contribute to automated test coverage and test strategy

• Strong Java 11+ development experience with Spring Boot and SOAP
• Solid understanding of PostgreSQL database design, optimization, and access control logic
• Strong Git skills: resolving conflicts, rebasing, writing clear changelogs
• Hands-on experience with cloud-native deployments (preferably AWS), Kubernetes, and CronJobs
• Experience with message handling, S3 file processing, and asynchronous flow redirection
• Familiarity with XML parsing, transformation, and validation logic
• Experience addressing technical debt, writing clean code, and automating tests
• Ability to read through unclear legacy logic, ask the right questions, and improve structure
• Comfortable working in a team that is rebuilding and modernizing under pressure
• Fluent English is required in spoken and written communication due to working on the Pan-Baltic level

• Flexible working hours, Hybrid work, and a possibility to work from anywhere in the EU, Iceland, Switzerland, and the UK (in total 90 days per year)
• Additional weeks of vacation to all employees with 1+ years tenure
• Volunteer time off and 30 fully paid calendar days for military training every year
• Competitive health benefits package – health insurance after the first 3 months as + health days in case of your absence due to sickness without a doctor's note
• Internal and external training programs, workshops, conferences, online trainings for professional growth and wellbeing
• Special Offers for Luminor products & services
• Working with international teams who value challenging work together with good humor and having fun