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Oliver Bernard
Senior Dotnet Developer

Senior Dotnet Developer

Hybrid

London, United kingdom

£ 110 /hour

Senior

Freelance

08-12-2025

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Skills

Communication C# Risk Reporting .NET

Job Specifications

Contract FX .NET Developer - £600/day - OUTSIDE IR35 - Global Commodity OTC & Brokerage Firm - London

A leading global commodities OTC & brokerage firm is seeking an experienced Senior Systems Developer with strong FX business knowledge to join on a contract basis. This role sits at the intersection of technology, risk, and trading, supporting front-office–aligned functions within a fast-paced environment.

Key Responsibilities

Deliver high-quality systems solutions across FX trading and risk workflows
Work closely with brokers, traders, and risk teams to understand business requirements and implement robust technical solutions
Contribute to the development, enhancement, and maintenance of key trading and risk platforms
Integrate and optimise the use of internal and third-party libraries
Support risk reporting systems and processes using C#

Required Skills & Experience

Deep business context and hands-on experience in FX (essential)
Classic systems solutions developer skillset, comfortable working across the full development lifecycle
Strong understanding of and ability to work effectively with libraries (internal and external)
Proven C# development experience, specifically within risk reporting or risk systems
Experience working in trading, brokerage, or OTC environments is highly desirable
Strong communication skills and ability to engage with front-office stakeholders

Contract FX .NET Developer - £600/day - OUTSIDE IR35 - Global Commodity OTC & Brokerage Firm - London

About the Company

OB are an industry leading technology recruitment consultancy operating across the UK and Europe. Established in 2010 by Billy Jenkins and James Mace, we specialise across the entire tech industry - placing contract and permanent talent in technical roles, ranging from entry level to C-level positions. With more than a decade’s experience, we’re the number one agency for some of the most exciting technology brands in the UK including ASOS, SKY, BBC and SkyScanner. Our extensive talent pool is made up of the best technology ... Know more