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C# Developer @ Impellam Group

Goswell Place, City of LondonOnsiteFull-time
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About this role

Salary: £57,000 - 80,000 per year

Requirements: Expert-level development experience in C# / .NETStrong experience with SQL ServerProven experience working with service-based architectures (REST, gRPC, web technologies)Solid understanding of asynchronous programming and multithreadingExperience with messaging middleware (e.g., IBM MQ or similar)Experience working with front office, trading, or risk stakeholdersStrong software engineering fundamentals with a focus on performance and scalabilityKnowledge of financial markets and instruments, particularly commodities or derivativesExperience with pricing and risk systemsExposure to electronic trading platformsExperience across asset classes (e.g., FX, Equities, Fixed Income, Commodities)Familiarity with tools such as Consul, Redis, Octopus Deploy, and TeamCityStrong organisational skills and delivery focusHigh attention to detail and qualityAbility to work independently with minimal supervisionComfortable working in fast-paced, high-pressure environmentsExcellent communication and stakeholder management skillsProactive mindset with a strong work ethic Responsibilities: Design, develop, and deliver core functionality for our Commodities Derivatives platformBuild scalable and high-performance systems supporting pricing, risk, and trading workflowsEnsure platform stability through rigorous testing and release managementCollaborate with front office, trading, and risk teams to deliver business-critical solutionsContribute to system architecture improvements, reducing complexity and increasing resilienceFollow best practices across code reviews, release governance, source control, and CI/CD pipelinesSupport production systems and ensure ongoing reliability and maintainability Technologies: C#CI/CDIBMSupportRESTRedisSQLTeamcityWebgRPCASP.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

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