Python / React Developer – Front Office Fx Technology

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.

About the Role

Our client, a leading global Corporate & Investment Bank, is looking for a hands-on Full Stack Developer to join its FX trading desk. You will sit on the trading floor and partner directly with traders and sales to design, build, and support the tools they rely on every day, from pricing and risk to trade lifecycle management.

This is a high-autonomy role for someone who enjoys owning a stream end to end, moving fast, and turning business needs into clean, scalable software.

What You Will Do

• Translate desk requirements into well-designed technical solutions, from analysis through delivery
• Build and maintain web applications for FX traders and sales across both frontend and backend, using a modern tech stack
• Develop and enhance pricing and analytics tools covering spot, forwards, and swaps, including curve construction
• Take ownership of a development stream and drive it independently
• Help migrate legacy spreadsheet-based tools onto a robust, industrialized platform while keeping existing processes running during the transition
• Troubleshoot production issues quickly and deliver pragmatic, value-added fixes
• Write unit and non-regression tests, contribute to the testing process, and keep documentation up to date
• Design with scalability and future evolution in mind
• Propose ideas to improve tooling, processes, and team efficiency

What You Bring

• 3+ years of experience with strong Python skills (pandas, API development, non-regression testing)
• 2+ years of experience with React or a comparable modern frontend framework
• Advanced spreadsheet skills: Excel functions, VBA, pivot tables
• Working knowledge of SQL
• Understanding of FX pricing and curve structures (spot, forwards, swaps), ideally with exposure to emerging market or LatAm currencies
• Familiarity with the full trade lifecycle: booking, risk, P&L, market data, settlement, and rolls
• Previous experience working directly on a trading floor

Nice to Have

• Docker and Kubernetes
• Event-driven architecture and Domain-Driven Design

Tech Environment

Python, React, SQL, Excel/VBA, Docker, Kubernetes, GitLab CI/CD, PyCharm, VS Code, with access to AI-assisted coding tools. Strong culture of code quality, test coverage, and continuous delivery, within an international team spanning multiple locations.