Senior C# / .NET Developer Risk and Securities LendingLocation: London (Hybrid) Contract Duration: 6 Months Industry: Financial ServicesAbout the OpportunityAre you a seasoned C# engineer with a deep understanding of financial markets? We are seeking an experienced Senior C# / .NET Developer to join a high-performing technology team supporting critical Risk Management and Securities Lending platforms.In this 6-month hybrid contract, you will play a pivotal role in designing, building, and supporting high-performance systems used for complex risk calculations and trading/financing workflows. Working closely with quants, risk managers, and the Front Office, you will deliver scalable, robust solutions in a fast-paced, regulated environment.What You Will DoSystem Development: Design, build, and maintain high-performance C# / .NET applications supporting Risk and Securities Lending workflows.API Integration: Build and consume RESTful APIs to seamlessly connect complex upstream and downstream financial systems.Data and Throughput: Handle large datasets and high-throughput systems, contributing to vital exposure calculations, limits, and reporting.Best Practices: Write scalable, testable, and maintainable object-oriented code, participating in architectural discussions and code reviews.Cross-Functional Collaboration: Partner with Risk, Front Office, Operations, Compliance, and Product Owners to translate business needs into technical reality.Production Support: Assist with incident ..... full job details .....