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Posted 06 August, 2026

C# FX Developer

Lorien
London, ENG, GB Full Time

Job Description

C# FX Options Pricing Developer

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6 Month Contract | London (Hybrid) | Umbrella Engagement

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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.

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