Senior C# / WPF Engineer - Risk System Replatforming

Experteer Overview Senior C# / WPF Engineer to lead components of a major replatforming programme for risk systems in a banking environment. You will modernise legacy desktop apps, ensure performance and reliability, and own delivery across a cross-functional team. The role combines hands-on development with design, testing, and production support to enable a seamless transition to modern architecture. This is a hands-on, autonomous position with a direct impact on critical risk workflows and front-office capabilities. Pay / Benefits * Design, develop and maintain high-performance C#/.NET and WPF applications * Modernise and refactor legacy desktop applications as part of the replatforming programme * Own individual components and workstreams within the project * Analyse architecture to improve maintainability, scalability and performance * Develop robust WPF UIs for complex financial/risk workflows * Collaborate with engineers, architects and stakeholders to capture requirements * Create automated unit/integration/UI tests to prevent regressions * Contribute to CI/CD pipelines, automated deployments and quality controls * Investigate and resolve production issues independently * Perform root-cause analysis and implement sustainable fixes * Participate in code reviews and uphold engineering standards * Communicate progress, risks and dependencies to stakeholders * Ensure solutions are secure, reliable, and suitable for a mission-critical banking environment * Support transition from legacy tech to modern architecture Tasks * C# / .NET production-grade applications * Strong understanding of the .NET ecosystem and OOP fundamentals * Experience with large enterprise-scale applications * WPF hands-on experience and complex desktop UI development * Experience modernising/migrating/refactoring WPF apps * Solid automated testing experience (NUnit/xUnit, unit/integration/UI, regression) * Experience with CI/CD, automated builds, testing, deployments, and governance controls * Financial services or risk/trading domain knowledge is highly preferred * Ability to work autonomously and manage technical workstreams * Strong problem-solving, communication and stakeholder management skills * Security-conscious development practices * Observability and production support mindset Key requirements * bleeding-edge projects * competitive salary * flexible schedule * medical insurance * sports benefits * corporate social events

C# * Create automated unit/integration/UI tests to prevent regressions * Contribute to CI/CD pipelines, automated deployments and quality controls * Investigate and resolve production issues independently * Perform root-cause analysis and implement sustainable fixes * Participate in code reviews and uphold engineering standards * Communicate progress, risks and dependencies to stakeholders * Ensure solutions are secure, reliable, and suitable for a mission-critical banking environment * Support transition from legacy tech to modern architecture Tasks * C# / .NET production-grade applications * Strong understanding of the .NET ecosystem and OOP fundamentals * Experience with large enterprise-scale applications * WPF hands-on experience and complex desktop UI development * Experience modernising/migrating/refactoring WPF apps * Solid automated testing experience (NUnit/xUnit, unit/integration/UI, regression) * Experience with CI/CD, automated builds, testing, deployments, and aaaaaaaa a controls * Financial services or risk/trading domain knowledge is highly preferred * Ability to work autonomously and manage technical workstreams * Strong problem-solving, communication and stakeholder management skills * Security-conscious development practices * Observability and production support mindset Key requirements * bleeding-edge projects * competitive salary * flexible schedule * medical insurance * sports benefits * corporate social events