Senior Software Developer

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 tooling Required 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 mindset Desirable • 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 trading systems Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.