Senior .NET Developer (Banking) – Remote (Poland)

This position is with a distributed engineering team focused on critical banking systems within the banking and investment banking industry. The role involves working on applications related to securities and banking operations, supporting multiple banking entities, product control, and risk management.

• Minimum 5 years of professional experience as a .NET / C# Developer
• Hands-on experience in the banking or investment banking sector (mandatory)
• Full-stack development experience with backend focus and frontend included
• Strong understanding and application of SOLID design principles
• Experience with document-based databases, such as MongoDB
• Experience with event-driven or event-based messaging frameworks
• Solid knowledge of unit and integration testing
• Experience working end-to-end on applications including development, testing, and support
• Ability to work independently in a fast-paced, regulated environment
• Availability during UK business hours

Nice to have:

• Experience with cloud platforms and application migration to cloud
• Experience with container technologies such as Docker and Kubernetes
• Exposure to systems like Murex or large in-house banking platforms
• Background in securities, risk, or product control systems

• Design, develop, and extend .NET-based systems supporting multiple banking entities
• Contribute to the integration of securities and core banking platforms
• Support and enhance a portfolio of approximately 17 applications across product control and risk management
• Work with an in-house development framework in a full-stack capacity
• Participate in scaling applications for cloud-based, containerized environments
• Collaborate closely with business stakeholders to deliver robust solutions
• Ensure high code quality through unit and integration testing

Candidates must be based in Poland. The contract is on a B2B basis within the banking and investment banking industry.