.Net Developer C# - Trading

Role: Contract C# .NET Developer Domain: Commodities trading Project : Energy Trading & Risk Management (ETRM) systems Day rate: £700-800/d (inside IR35) Location: London (hybrid – 3 days per week) Contract: 6 months (strong extension scope) X4 Technology are partnered with a well-backed commodity trading firm in London, offering an exciting contract opportunity for an experienced C# .NET Developer. In this role, you\’ll play a key role in evolving the firm\’s core Energy Trading & Risk Management (ETRM) platform – enhancing functionality, onboarding new products and integrating modern SaaS solutions for analytics, hedging, credit, regulatory reporting and more. You\’ll also drive improvements to customisation code, strengthen unit testing capabilities, contribute to a suite of ETRM-adjacent tools (APIs, loaders, reports, data pipelines, BI tools) and support broader initiatives in test automation and CI/CD. Responsibilities of the Contract C# .NET Developer (Commodities) Building solutions for front office users (trade entry, exchange interfaces, STP, etc) Customising ETRM user interface using ClassEvents (C#.NET) Modifying the ETRM data model directly in the SQLServer database Quickly acquiring new technical skills (Azure IaaS/PaaS, Crystal Reports, Python, Azure Databricks, Azure Data Factory, Power BI, etc.) Requirements of the Contract C# .NET Developer (Commodities) Outstanding C#.NET development expertise Excellent SQLServer Database design and optimisation skills Please apply online for immediate consideration.