Java Developer (Freelancer) (m/f/d)

Freelance Mid-Level Java Developer

Location: Hybrid

Start Date: As soon as possible

Duration: 12 months, full-time (40h/week)

We are looking for an experienced Java Backend Developer to join a leading German bank on a freelance basis. This is an exciting opportunity to work onsite in Frankfurt am Main and contribute to innovative banking solutions.

Your Role

As a Mid-Level Java Developer, you’ll play a key role in both backend projects. You’ll collaborate with cross-functional teams to ensure seamless integration, robust architecture, and a smooth user experience for both internal and external stakeholders.

General

• Write clean, maintainable, and testable code.
• Participate in regular team reviews and planning sessions.
• Ensure timely delivery of project milestones.

Your Skill Profile

• Solid experience with Java and the Spring Framework.
• Familiarity with PSP integrations and secure payment architectures.
• Strong understanding of microservices and object-oriented design.
• Proficiency in RESTful API development.
• Experience with Continuous Delivery and test automation tools (JUnit, Testcontainers, REST-assured).
• Background in building tools or custom integrations, ideally in payments or customer support.
• Strong problem-solving skills and ability to work independently.

Please reach out to [email protected] if you have any questions.