C# Developer

Salary: £57,000 - 80,000 per year

Requirements:

• Expert-level development experience in C# / .NET
• Strong experience with SQL Server
• Proven experience working with service-based architectures (REST, gRPC, web technologies)
• Solid understanding of asynchronous programming and multithreading
• Experience with messaging middleware (e.g., IBM MQ or similar)
• Experience working with front office, trading, or risk stakeholders
• Strong software engineering fundamentals with a focus on performance and scalability
• Knowledge of financial markets and instruments, particularly commodities or derivatives
• Experience with pricing and risk systems
• Exposure to electronic trading platforms
• Experience across asset classes (e.g., FX, Equities, Fixed Income, Commodities)
• Familiarity with tools such as Consul, Redis, Octopus Deploy, and TeamCity
• Strong organisational skills and delivery focus
• High attention to detail and quality
• Ability to work independently with minimal supervision
• Comfortable working in fast-paced, high-pressure environments
• Excellent communication and stakeholder management skills
• Proactive mindset with a strong work ethic

Responsibilities:

• Design, develop, and deliver core functionality for our Commodities Derivatives platform
• Build scalable and high-performance systems supporting pricing, risk, and trading workflows
• Ensure platform stability through rigorous testing and release management
• Collaborate with front office, trading, and risk teams to deliver business-critical solutions
• Contribute to system architecture improvements, reducing complexity and increasing resilience
• Follow best practices across code reviews, release governance, source control, and CI/CD pipelines
• Support production systems and ensure ongoing reliability and maintainability

Technologies:

• C#
• CI/CD
• IBM
• Support
• REST
• Redis
• SQL
• Teamcity
• Web
• gRPC
• ASP.NET

More:

We are a leading global markets organisation providing liquidity and market-making services across a broad range of global commodity markets, including base and precious metals, oil, power and natural gas, coal and emissions, and agricultural commodities. We are seeking an experienced Commodities Trading C# Developer to join our London-based core development team within our Commodities IT function. This is a 6-month initial contract role, inside IR35, focused on building and delivering critical technology solutions that support the full lifecycle of commodities derivatives trading from pre-trade through to risk, pricing, and post-trade processing. Our technology team is central to enabling this coverage through high-performing, scalable, and resilient trading systems.

last updated 33 week of 2026