Senior.Net Developer

Job Description Job Title: Senior C# / .NET Developer – Financial Services (Risk / Securities Lending) /n Location: London (Hybrid) /n Duration: 6 Months contract /n /n Job Description /n Role Overview /n /n - We are seeking an experienced C# / .NET Developer to join a technology team supporting critical Financial Services platforms, with a strong focus on Risk Management and/or Securities Lending domains. /n - The role involves designing, building, and supporting high performance systems used for risk calculations and trading/financing workflows. /n - You will work closely with quants, risk managers, business analysts, and product owners to deliver robust, scalable solutions in a regulated environment. /n /n Key Responsibilities /n /n - Design, develop, and maintain C# / .NET applications supporting Risk or Securities Lending platforms /n - Build and consume RESTful APIs to integrate with upstream/downstream systems /n - Implement scalable, testable, and maintainable object oriented code following best practices /n - Contribute to risk workflows including exposure calculations, limits, and reporting /n - Work with large data sets and high throughput systems typical of financial services /n - Participate in code reviews, architectural discussions, and technical design sessions /n - Collaborate with cross functional teams (Risk, Front Office, Operations, Compliance) /n - Support production systems and assist with incident analysis and remediation /n /n Required Skills & Experience /n Core Technical Skills /n /n - Strong hands on experience with C# and .NET (.NET Core / .NET) /n - Excellent Object Oriented Programming (OOP) skills and design principles /n - Proven experience designing and implementing APIs (REST / JSON) /n - Solid understanding of application architecture, performance, and scalability /n - Experience with SQL databases (e.g. SQL Server) /n - Familiarity with unit testing, integration testing, and CI/CD pipelines /n /n Financial Services Domain Knowledge (Essential) /n /n - Experience working in Financial Services technology environments /n - Strong domain knowledge in at least one of: /n - o Risk Management /n - o Securities Lending / Prime Brokerage /n - o Collateral, Margin, or Financing platforms /n /n Risk & Regulatory Experience (Highly Beneficial) /n /n - Exposure to risk and regulatory methodologies such as: /n - o RWA (Risk Weighted Assets) /n - o CCAR /n - o Basel III / Basel IV frameworks /n - Understanding of credit risk, counterparty exposure, or capital calculations is a strong advantage /n /n Nice to Have /n /n - 10+ years experience /n - Experience with cloud platforms (Azure / AWS) /n - Messaging technologies (e.g. Kafka) /n - Experience in front to back trading or financing systems /n - Familiarity with Agile / Scrum delivery methodologies /n /n Personal Attributes /n /n - Strong problem solving and analytical mindset /n - Comfortable working in complex, regulated environments /n - Able to communicate effectively with both technical and non technical stakeholders /n - Proactive, delivery focused, and detail oriented /n /n