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Full timeTechnology

Senior Software Developer

Spectrum IT RecruitmentLondon🇬🇧United Kingdom

Why this role stands out

This hybrid Senior Software Developer role offers the chance to architect and enhance critical trading systems, making a significant impact on greenfield projects while shaping development standards. You'll thrive here if you possess strong C#/.NET/SQL Server experience and enjoy collaborating to build high-performance, scalable applications. Apply now to leverage your technical and strategic skills in a role with excellent career growth potential.

Quick overview

SeniorityMid Senior
Employment typeFull Time
Work modeHybrid
LocationLondon, United Kingdom
OracleSQLGitC#.NETASP.NETSQL Server

Job description

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 financial markets or trading systems

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

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