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)

Improve performance, reliability, and automation across systems

Mentor junior developers and promote best engineering practices

Participate in code reviews and enforce high standards of quality

Collaborate closely with researchers and traders to translate

requirements into robust software solutions

Contribute to continuous improvement of development processes and toolingRequired Skills & Experience

BSc (or higher) in Computer Science or a related scientific discipline

Strong recent experience with C# and the latest .NET platform

5+ years of professional software development experience

Solid experience with SQL Server, Oracle, or equivalent relational databases

Strong understanding of object-oriented design principles and software architecture

Experience building production-grade, scalable systems

Fluency in English with excellent written and verbal communication skills

High attention to detail and a thorough, analytical mindsetDesirable

Experience in multi-threaded and concurrent application development

Network programming experience (TCP/UDP)

Experience with distributed version control systems (Git)

Strong understanding of Windows technologies

Exposure to financial markets or trading systemsSpectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy