6 of 6 Senior C# Developer Jobs in London

Senior C# Developer – Fintech50Up to 70,000 p/aQuant Capital is urgently looking for a C# Developer to join our well-known Fintech50 client who produces software disrupting the wealth management market.The C# Developer role has come around … expansion and strategic change, the C# Developer will report to the Development Team Lead. This role offers the ability to move towards Team Lead as well as Development Manager role.The development team works in a very agile fashion on 2 week sprints. The C# Developer ...

Role: Senior Developer (C#/.NET) Location: London (Hybrid) Rate: Up To £800 Per Day The role An exciting opportunity has arisen for an experienced Senior .NET Technical Lead to join a high-performing technology team delivering business-critical enterprise applications. This … platforms. Collaborate with technical and business stakeholders to deliver complex change programmes from design through to production. Requirements Extensive commercial experience developing applications with C# and the .NET ecosystem, including modern .NET. Proven experience leading development teams or technical workstreams while maintaining a hands-on coding role. Strong understanding ...

Role: Front Office C# Senior Developer - VP Location: London Contract: 6 Months (PAYE) You will be joining an exciting team on a new project to deliver several new global services used directly by the business. These will be used by over 380 users and represent … improvements for the firm. All of these sub-projects offer great exposure to linear products and working with the business. Technical & System Performance Calibration C# Mastery (threading, memory management, and concurrency) High-Availability (active-active, hot-hot, zero-downtime distributed systems) Messaging experience (Solace or similar like Kafka/ ...

Senior C# Engineer .NET 9/10, AWS Lambda, SQS, SNS OUTSIDE IR35 £700£800 per day Outside IR35 100% Remote 9 month rolling contract Takeaway: Contribute to the architecture and build of a major greenfield B2B SaaS platform as a deeply senior, hands … C# engineer, with heavy emphasis on deep .NET engineering , high-performance distributed systems , and real-world AWS serverless delivery . Youll also have the opportunity to develop hands-on skills with Claude Code , one of the most advanced AI-assisted development tools in the industry. Role Overview: Youll operate ...

prestigious financial service client is seeking an experienced C#/.NET Developer to design, develop and support high-performance applications across Risk Management and/or Securities Lending platforms. You will work closely with quants, risk managers, business analysts and product owners to deliver scalable solutions … regulated financial-services environment. What you'll do: Design, develop, and maintain C#/.NET applications supporting Risk or Securities Lending platforms Design and integrate RESTful APIs Build scalable, testable and maintainable solutions Support risk, exposure, limits and reporting workflows Work with large data sets and high-throughput systems ...

hands-on role with strong influence over engineering standards, quality, and technical direction. Key Responsibilities Design, develop, test, and maintain scalable services using C#/.NET (ASP.NET Core) and RESTful APIs. Build responsive, accessible user interfaces using React, TypeScript, HTML, and CSS. Implement secure authentication/authorisation (e.g., OAuth2 … deployment practices. Mentor engineers and promote best practice in engineering craft and delivery. Required Skills & Experience Extensive commercial experience in full stack development with C#/.NET and React. Strong knowledge of .NET Core, dependency injection, asynchronous programming, and API design. Strong React experience including state management and modern ...