Senior Java Developer
First seen by Alion on Nov 2, 2026.
We are looking for 4 Senior Java Developers, including one Tech Lead, to build integrations for bank deposits and withdrawals.
You will connect banks, including international banks, with an existing payments platform and back-office systems. The platform is already running in production - you will add new integrations, not build it from scratch. You will have the opportunity to take part in a project for 6 months, 100% remote from any place in Poland. If you have experience in the financial or banking industry, new opportunities are waiting for you from January 2027!
Key responsibilities
Review the bank’s technical documentation.
Discuss technical details with the bank or integration provider.
Prepare the technical design for each integration.
Develop and test the integration.
Deploy it to production and set up monitoring using existing company tools.
Hand over maintenance to an internal team, including documentation and knowledge transfer.
Ideal candidate profile
Senior-level Java experience with microservices – at least 8 years
Experience connecting external systems using different communication methods.
Experience with the financial industry, like banking integrations, bank file formats and payment schemes.
Ability to turn technical documentation into working solutions.
Experience testing and deploying backend services.
English: minimum B2
Ability to join the project in January 2027 (must have)
Conditions
Form of cooperation: B2B contract
Salary: 160-180 PLN net/h
100% remote work – you can work from any place in Poland
Project for 6 months
Start: January 2027
Benefits: Private medical care, Life insurance, Sports card
Recruitment steps
Phone call with a KUBO Recruiter (20–30 minutes).
Technical interview
Interview with the client
Decision and feedback
Tech stack
- Java
- Microservices
- Banking Integrations
- Backend Services
- Technical documentation
- English
- Communication methods
- Testing
- Deployment