Contract C# Developer - FX
Posted Today by Oliver Bernard
£120 Per hour
Outside
Undetermined
London Area, United Kingdom
Summary: The role of Senior Contract C# Developer focuses on developing and delivering technology solutions within a global brokerage and trading firm, specifically in the FX trading domain. The position requires strong technical skills in C# and related technologies, along with experience in trading systems. The developer will collaborate with stakeholders to translate business needs into scalable solutions while providing support and mentoring to junior developers. This role offers significant autonomy and influence in a high-impact trading environment.
Key Responsibilities:
- Designing, developing, testing, and deploying new features across the platform
- Interpreting business requirements and implementing solutions within defined designs
- Providing L3 support for in-house production systems
- Coordinating support responses for third-party systems and infrastructure
- Mentoring and supporting junior developers
- Staying ahead of emerging technologies and assessing opportunities and risks
- End-to-end requirements gathering, interpretation, and implementation
- Full-stack development, including testing, debugging, and documentation
- Strong collaboration and communication across technical and business teams
- Continuous learning and improvement
Key Skills:
- Strong commercial experience with C#, .NET, MVC, SQL Server, and Git
- Prior FX / trading systems experience (essential)
- Passion for technology and its real-world application
- Strong interpersonal skills and a team-focused mindset
- Mathematically literate with a logical, analytical approach
Salary (Rate): £120.00/hr
City: London Area
Country: United Kingdom
Working Arrangements: undetermined
IR35 Status: outside IR35
Seniority Level: Senior
Industry: IT
Senior Contract C# Developer – FX Trading - £600/day - OUTSIDE IR35
We’re partnering with a leading global brokerage and trading firm to recruit an experienced Senior Contract C# Developer with prior FX experience. This is a high-impact role within a sophisticated trading environment, ideal for someone who thrives on complex systems and business-critical technology. You’ll play a key part in shaping and delivering the firm’s technology strategy, working closely with stakeholders to translate business requirements into robust, scalable solutions.
Essential Skills & Experience
- Strong commercial experience with C#, .NET, MVC, SQL Server, and Git
- Prior FX / trading systems experience (essential)
- Passion for technology and its real-world application
- Strong interpersonal skills and a team-focused mindset
- Mathematically literate with a logical, analytical approach
Key responsibilities include:
- Designing, developing, testing, and deploying new features across the platform
- Interpreting business requirements and implementing solutions within defined designs
- Providing L3 support for in-house production systems
- Coordinating support responses for third-party systems and infrastructure
- Mentoring and supporting junior developers
- Staying ahead of emerging technologies and assessing opportunities and risks
Accountabilities
- End-to-end requirements gathering, interpretation, and implementation
- Full-stack development, including testing, debugging, and documentation
- Strong collaboration and communication across technical and business teams
- Continuous learning and improvement
This is an opportunity to work with a globally recognised trading firm on mission-critical systems, in a role that offers autonomy, technical challenge, and real influence.
Senior Contract C# Developer – FX Trading - £600/day - OUTSIDE IR35