Java + C# Developer (digital payment)

Senior • Hybrid

Gdańsk, Poland

Join an international technology team building next-generation open banking solutions used across Europe. Our platform enables secure, reliable, and high-quality connectivity to financial institutions—powering innovative products and services in the digital payments ecosystem.

You will work in a highly skilled, collaborative environment alongside teammates located mainly in Denmark, Ireland, and Romania.

As a Java Developer, you will contribute to the development, improvement, and maintenance of a large-scale open banking platform. You will work on advanced API solutions focused on security, data processing, monitoring, onboarding automation, and high-performance connectivity.

This role is ideal for engineers who enjoy solving complex problems, working in modern cloud environments, and collaborating with international teams.

Our expectations

Strong experience in building backend services (Java + .Net).
Approximately 6 years of relevant experience in Java programming.
Solid knowledge in C# programming.
Solid understanding of API design, distributed systems, cloud environments.
Experience in establishing bank connections through PSD2 interfaces.
Ability to write clean, maintainable, and testable code.
Experience working in fast-paced, product-centric environments.
Collaborative mindset and eagerness to work closely with product and engineering peers.
Proficiency in English, fluent Polish.
Hybrid work 2-3 days per week (Gdansk).

Main responsibilities

Design, develop, and maintain APIs and integration modules connecting the platform to thousands of European banks and financial institutions.
Collaborate with engineers and product stakeholders to define requirements, set acceptance criteria, and deliver solutions.
Contribute to architecture by ensuring scalability, maintainability, and adherence to best practices.
Maintain quality through code reviews, testing, and continuous improvement initiatives.
Solve complex problems involving performance, distributed systems, and regulatory constraints.

Britenet

Britenet is a company operating in the technology industry, focusing on developing next-generation open banking solutions across Europe. The company is dedicated to providing secure, reliable, and high-quality connectivity to financial institutions, thereby enabling innovative products and services within the digital payments ecosystem. Britenet values collaboration and operates in a highly skilled environment, with team members primarily located in Denmark, Ireland, and Romania. The company emphasizes a collaborative mindset, problem-solving, and continuous learning, fostering a culture that supports working in international, cross-functional teams. Britenet is committed to modern software development practices, including cloud environments and advanced API solutions, and it seeks to maintain high standards in security, data processing, and connectivity.