C# Front Office Trading Support

Job title: C# Front Office Trading Support (Equities)

Location: Paris, France (3 days on site)

Contract: 6 months

Sector: Investment Banking

We're supporting a leading global investment bank seeking a Front Office Trading Support / C# Developer to join their Equities technology team. This is a high-visibility role sitting directly alongside traders and structures, responsible for supporting and enhancing business-critical trading and pricing applications.

This position combines hands-on development with daily interaction across the trading floor, making it ideal for someone who enjoys operating at the intersection of technology and financial markets.

Responsibilities:

• Support, maintain and enhance front-office trading and pricing applications
• Develop and improve tools used by Equities traders and structuring teams
• Work across pricing, market data, risk parameters, PnL and trading support platforms
• Troubleshoot production issues in a fast-paced trading environment
• Engage directly with traders to understand requirements and deliver solutions
• Contribute to new functionality, application enhancements and platform stability

Skills required:

• Web application and REST API development experience
• Exposure to Excel Add-In development would be highly beneficial
• Strong problem-solving and production support capabilities
• Ability to work effectively under pressure in a real-time trading environment
• Strong understanding of Equities and Equity Derivatives , particularly options
• Experience supporting front-office users, trading desks or structuring teams
• Knowledge of pricing tools, market data platforms and trading workflows
• Ability to bridge the gap between technology and business stakeholders

Ideal background:

• 5+ years' experience within financial services technology
• Degree in Computer Science, Engineering or a related discipline
• Strong technical engineering capability combined with financial markets knowledge
• Previous experience in Front Office trading support or trading application development