At KUBO, we’re looking for a Senior Java Engineer to join a long-term modernization program for one of our clients in the financial sector. This role is focused on API design and backend development, as part of a broader architectural transformation effort.
As a consultant, you’ll work remotely from Poland in an international Agile team, helping shape a global platform used by CFOs and finance teams around the world.
responsibilities :
Design and implement OpenAPI contracts to support scalable service development
Build and maintain backend services in Java and Spring Boot
Contribute to architectural improvements and API-first development workflows
Deploy and manage services in Kubernetes environments
Collaborate with cross-functional teams to ensure robust, high-performing solutions
Troubleshoot production issues and improve system reliability
Contribute to improving team practices, code quality, and documentation
requirements-expected :
5-8 years of experience as a Java developer, working with Spring Boot
Proven experience designing and implementing OpenAPI/REST contracts
Experience deploying to and working with Kubernetes
Familiar with microservices architecture and containerized environments
Nice to have: experience with JBoss, EclipseLink, Oracle
Comfortable working in distributed teams with strong communication skills
Fluent in Polish and English (spoken and written)
offered :
Location: Remote from Poland
Contract type: B2B
Duration: Until end of 2026 (possible extension)
Salary: 140-210 PLN/h, negotiable, depending on experience
Benefits: Private medical care, life insurance, trainings, Multisport card
benefits :
sharing the costs of sports activities
private medical care
sharing the costs of foreign language classes
sharing the costs of professional training & courses
