Senior Software Developer

Spectrum IT Recruitment • London, London, United Kingdom • Posted May 28, 2026

Location London, London
Job Type Full-time
Category computer-and-mathematical
Posted May 28, 2026
Excellent opportunity for a Senior Software Developer to play a key role in architecting, developing, and enhancing our clients in-house trading and research systems.

This is an opportunity to work on greenfield projects, influence architectural decisions, and directly impact systems that support real-world trading strategies. As a senior member of the team, you will contribute both technically and strategically, helping shape development standards, performance optimisation, and system scalability.

You will primarily work within a C# / .NET / SQL Server / ASP.NET ecosystem, developing high-performance, reliable, and maintainable applications.

Key Responsibilities

Design, develop, and maintain high-performance applications in C# and .NET
Lead architectural discussions and contribute to technical direction
Build scalable, reliable systems to support automated trading and research
Develop and optimise database solutions (SQL Server or equivalent)
Im...

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