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C# FX Developer - Lorien Impellam

Lorien Impellam
London, GB
Posted 8/5/2026
3-5

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C# FX Options Pricing Developer 6 Month Contract | London (Hybrid) | Umbrella Engagement We are seeking an experienced FX Options Pricing Developer to join a front office technology team supporting a global FX trading business. This is a hands-on development role focused on the enhancement, maintenance and support of critical FX options pricing and trading systems used by front office stakeholders. This opportunity will suit a strong developer with a background in FX Options, who enjoys working directly with traders, quants and business users in a fast-paced trading environment. Responsibilities • Develop, enhance and support front office FX options pricing and trading applications • Deliver functional enhancements and technical improvements across the platform • Collaborate closely with traders, sales teams, quants and technology stakeholders • Analyse business requirements and translate them into robust technical solutions • Investigate and resolve production issues in a timely manner • Ensure solutions are designed for high performance, scalability and reliability • Contribute to software design, development, testing and release activities • Take ownership of deliveries while working within a global technology team Required Skills & Experience • Strong commercial development experience with C# and C++ • Proven experience working within Front Office FX Options technology environments • Experience developing pricing, risk or trading applications • Strong knowledge of WinForms and/or WPF • Experience supporting business-critical trading systems • Ability to engage confidently with both technical and non-technical stakeholders • Excellent analytical, problem-solving and communication skills • Degree in Computer Science, Mathematics, Engineering or a related discipline Desirable Skills • .NET Core • ASP.NET • React • TypeScript • Kafka Personal Attributes • Strong ownership mentality and delivery focus • Able to work effectively in a fast-paced front office environment • Collaborative team player with excellent stakeholder management skills • Positive, resilient and results-oriented approach Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy.