Senior Software Developer

Salary: £100,000 - 120,000 per year

Requirements:

• 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
• Desirable: network programming experience (TCP/UDP)
• Desirable: experience with distributed version control systems (Git)
• Desirable: strong understanding of Windows technologies
• Desirable: exposure to trading systems

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

Technologies:

• ASP.NET
• C#
• Git
• Support
• Network
• Oracle
• SQL
• Windows

More:

We are offering an 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 a greenfield opportunity where you can influence architectural decisions and directly impact systems that support real-world trading strategies. As a senior member of the team, you will help shape development standards, performance optimisation, and system scalability. You will work within a C# .NET SQL Server ASP.NET environment on high-performance, reliable, and maintainable applications. This role offers the chance to collaborate closely with researchers and traders in a professional, technically challenging setting.

last updated 31 week of 2026