FX-Focused C# .NET Developer – Platform Re-Architecture

Free-Work UK; City Of London; On-site; GBP 50,000 - 60,000; Full time

Job summary

Free-Work UK in London is seeking a C# .NET Software Developer with 3–5 years of proven track record. You will re-architect and build the in-house middle office platform and integrate with a new trading platform, developing pricing toolsets and integrating with external APIs. You will maintain daily operations across existing platforms.

The role offers autonomy, exposure to FX projects, and the chance to make a tangible impact within a fast-growing brokerage.

Qualifications

• 3+ years of experience in Microsoft web technologies (C#, Core MVC)
• Proficient with SQL Server databases.
• Proactive with stakeholder relationships (sales, brokers, middle office, vendors).
• Must produce clean, well-written, fully tested production-ready software.

Responsibilities

• Re-architect and build the in-house middle office platform and integrate with a new trading platform.
• Develop pricing toolsets.
• Integrate with external reporting/tradeflow and pricing APIs.
• Maintain daily operations on existing platforms.

Skills

C#

Core MVC

SQL Server

Stakeholder engagement

Testing

Education

Computer Science degree

Job description

Free-Work UK in London is seeking a C# .NET Software Developer with 3–5 years of proven track record. You will re-architect and build the in-house middle office platform and integrate with a new trading platform, developing pricing toolsets and integrating with external APIs. You will maintain daily operations across existing platforms.

The role offers autonomy, exposure to FX projects, and the chance to make a tangible impact within a fast-growing brokerage.