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

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• Design, develop, and maintain high-performance applications in C# and .NET
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• Lead architectural discussions and contribute to technical direction
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• Build scalable, reliable systems to support automated trading and research
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• Develop and optimise database solutions (SQL Server or equivalent)
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• Improve performance, reliability, and automation across systems
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• Mentor junior developers and promote best engineering practices
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• Participate in code reviews and enforce high standards of quality
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• Collaborate closely with researchers and traders to translate requirements into robust software solutions
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• Contribute to continuous improvement of development processes and tooling
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Required Skills & Experience

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• BSc (or higher) in Computer Science or a related scientific discipline
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• Strong recent experience with C# and the latest .NET platform
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• 5+ years of professional software development experience
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• Solid experience with SQL Server, Oracle, or equivalent relational databases
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• Strong understanding of object-oriented design principles and software architecture
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• Experience building production-grade, scalable systems
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• Fluency in English with excellent written and verbal communication skills
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• High attention to detail and a thorough, analytical mindset
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Desirable

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• Experience in multi-threaded and concurrent application development
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• Network programming experience (TCP/UDP)
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• Experience with distributed version control systems (Git)
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• Strong understanding of Windows technologies
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• Exposure to trading systems
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Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.