This position is based in New York, and relocation is mandatory. We are open to French nationals who are willing to relocate and for whom we can sponsor a work visa. Remote work from France is not possible for this role.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.ContextWe are looking for a C# Algo Developer to design and implement trading software solutions for the Direct Market Services & Solutions desk in the Americas, trading equities and futures through algorithmic strategies. The role focuses on building low-latency, real-time trading systems that operate efficiently in fast-moving markets. The environment is dynamic, requiring the ability to quickly translate ideas into robust, scalable solutions.ResponsibilitiesDevelop, maintain, and support low-latency trading systems and related toolsTake full ownership of algorithmic trading applications from design to productionWork closely with traders to understand requirements and implement strategiesAnalyze and optimize end-to-end system performanceCollaborate with support, infrastructure, and market access teams to improve platform stabilityAdapt and deploy existing global tools to the US electronic trading businessStay updated on industry trends in algorithmic tradingCollaborate with global development teamsProfileStrong programming skills in C# (real-time, multithreading, high-performance code)Experience in front-office algo development (3+ years)Understanding of market data, execution, or systematic tradingAbility to work in a fast-paced, high-pressure environmentBachelor’s degree in Computer Science, Engineering, Math, or related field