Haystack
Senior Software Developer
Skills
5 days ago
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Important information
Contract type:
Permanent
Location:
London, UK
Work mode:
Onsite
Published on:
15 October 2026
What they need
An employer is seeking a Senior Software Developer to play a key role in architecting, developing, and enhancing in-house trading and research systems.
- Architect, develop, and enhance trading and research systems
- Work on greenfield projects and influence architectural decisions
- Contribute to development standards, performance optimisation, and system scalability
- Primarily work within a C# / .NET / SQL Server / ASP.NET ecosystem
- Mentor junior developers and contribute to best engineering practices
What You'll Need
- 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
What's On Offer
- Opportunity to work on greenfield projects
- Direct impact on systems supporting real-world trading strategies
- Contribute to continuous improvement of development processes and tooling
Apply via Haystack today!
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