Senior Java Developer - Core Banking

About the role

Megasol builds Corniche, a core banking system in production for 26 years that powers mobile and online banks with customer and account management, loans, cards and payments. Several new customers are expected to go live in early 2027, so the team of 11 developers is adding experienced Java developers. You will take ownership of features from design to release, working closely with customer support and test engineers.

Key responsibilities

• Turn customer requirements from banks and lenders into technical solutions
• Design new functionality and architecture together with the team
• Write high-quality, maintainable Java code
• Review code and help keep quality high across the team
• Deliver production-ready solutions, understanding dependencies and ensuring smooth production releases
• Work independently and in pairs on larger designs and harder problems

Required profile

• 5+ years of professional experience with Java
• Degree in computer science or equivalent experience
• Detail-oriented, patient and methodical with complex systems
• Fluent in Swedish, written and spoken
• Bonus: experience with Spring and SQL, front-end with Kotlin and Angular, interest in distributed systems and messaging (e.g. NATS), and background in financial or administrative systems

What we offer

• A small, close-knit team with real ownership from day one
• Flexible hours and a humane pace, with no crunch and no busywork
• Office-first work in Uppsala, with flexibility when it suits you and the team