Front Office C# Developer - Electronic Trading

About the Company

As the founding entity of RAINBOW PARTNERS, Quanteam is a consulting firm specialized in Banking, Finance, and Financial Services. Through our core human values - proximity, teamwork, diversity, excellence - our 1000 expert consultants, hailing from 35 different nationalities, collaborate across 13 international offices: Paris, Lyon, New York, Montreal, London, Brussels, Luxembourg, Geneva, Lisbon, Porto, Casablanca, Madrid and Singapore.

We are looking for an Front Office C# Developer for one of our clients, an investment bank set in New York.

About the role

Join our Fixed Income electronic trading team building the tools behind price streaming, RFQ workflows, and OMS - connecting to platforms like Bloomberg, Tradeweb, and BrokerTec. You’ll work on our strategic trading tool powering dealer-to-client and inter-dealer trading, owning both client and server-side development across the full SDLC.

What you’ll do

• Build and enhance electronic trading platforms for desks like US Linear Rates, US Treasuries, LATAM, and FX
• Develop real-time trading and pricing components in .NET/C#
• Work directly with traders and sales to shape technical specs
• Design scalable solutions alongside senior devs and architects
• Own code quality, testing, and CI/CD delivery
• Provide production support (2nd/3rd line) in a fast-paced trading environment
• Coordinate releases and keep stakeholders in the loop

What you bring

• Degree in Computer Science, Engineering, or similar (Finance a plus)
• Strong C#/.NET skills and OOP fundamentals
• Experience with MVVM, Git, Dependency Injection, Entity Framework
• Comfortable with Agile/Scrum, CI/CD (TeamCity, Jenkins)
• Experience with multithreaded/concurrent systems
• Financial products knowledge
• Prior exposure to electronic trading platforms