Vertus Partners
C# Desk Developer
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C# Desk Developer (Contract) | Front Office Trading Technology | Investment Bank
London | £650 per day (via Umbrella)
C#, Python, Front Office, Trading Systems, Risk & PnL
The Role
A leading global investment banking team is looking for a contract C# developer to join a front office technology function supporting a rates trading business in London.
This is a desk-facing engineering role where you'll work closely with traders and technology teams to improve critical trading tools, strengthen platform stability, and help move tactical solutions towards a more scalable long-term architecture. The environment is fast-moving, highly collaborative, and offers direct exposure to front office workflows.
What You Will Be Doing
- Build and enhance business-critical applications used by trading teams.
- Design and deliver scalable solutions that replace tactical processes and legacy tooling.
- Develop functionality supporting risk management, P&L reporting, and trading workflows.
- Provide hands-on support for production applications used by front office stakeholders.
- Work closely with global technology teams and business users to prioritise and deliver enhancements.
- Help improve engineering standards, automation, reliability, and operational efficiency across the platform.
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What You Bring
- Strong commercial development experience using C# and.NET technologies.
- Experience working within front office, trading, or capital markets environments.
- Good understanding of financial products such as rates, fixed income, equities, or related asset classes.
- Ability to work directly with business users and translate requirements into robust technical solutions.
- Experience supporting and enhancing production trading applications.
- Strong problem-solving skills and a collaborative approach to delivery.
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The Package
- Competitive contract day rate
- London-based role
- Hybrid working set up
- Front office exposure with direct interaction across trading and technology teams
- Opportunity to work on high-impact business and trading initiatives
Vertus Partners is a specialist financial markets recruiter. Speak directly with the team for a confidential discussion and full details on the opportunity.
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