Fullstack developer React / C#
QUANTEAM - North America (RAINBOW PARTNERS Group)Role Overview
QUANTEAM - North America (RAINBOW PARTNERS Group) is hiring a mid-level Fullstack developer React / C#. This is a contract role in CA. Part of QUANTEAM - North America (RAINBOW PARTNERS Group)'s Trading hiring. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job Description
About the Company:
As the founding entity of RAINBOW PARTNERS, Quanteam is a consulting firm specializing in Banking, Finance, and Financial Services. Guided by our core values of closeness, teamwork, diversity, and excellence, our team of 1,000 expert consultants, representing 35 different nationalities, collaborates across 10 international offices: Paris, Lyon, New York, Montreal, London, Brussels, Geneva, Lisbon, Porto and Casablanca.
We are looking for a FullStack Developer 70% Front-end (Typescript / React) 30% Back-end (C# .Net Core) for Rates - Capital Market activities.
Role Overview :
The first application you will work on is used by Traders worldwide to monitor their risk exposure in real time. You will participate in the expansion of this platform to meet the needs of the USD and XCCY desks. The second one handles the construction, distribution and modification of interest rate curves. You will join a multi-skilled team (Project Management, Development, QA, Support) and multi-regions (Paris, London, Hong Kong) in charge of the complete life cycle of the information system.
Key responsibilities:
- Design and develop in Typescript / React new screens or modifications to existing screens for the IRIS and CurveBuilder applications.
- Support the existing IRIS backend developer by participating in C# development on this application
- Help and support the NY USD trading teams, especially during the afternoon when Paris and Asia are off
- Design IT solutions in collaboration with other IT teams
- Code, code, and code
- Maintain and improve existing CI/CD
- Contribute to improving the performance of the application scope and driving its evolution
- Contribute to effective coordination and communication with the international delivery system teams
Required Qualifications and Skills:
- Graduate Computer Sciences (bachelor +5)
- >7 years of experience
- Expert in Web development: Typescript, React (promises, redux, callback, etc.), Signal-R are mandatory (Angular is not sufficient)
- Good knowledge in C# .Net Core development
- Craft approach and quality oriented: SOLID & clean code principles, Unit tests, BDD, etc
- Significant experiences of dev using the following components: .Net Core, AWS, Kafka, Signal R, Kubernetes, ELK, APIs, GIT
- Knowledge of Capital Markets activities, Interest rate: Pricing (interest rate curve models) and Risk
- A team player with real time management skills and capable of working in a multi-cultural context
Frequently Asked Questions
How do I apply for the Fullstack developer React / C# position at QUANTEAM - North America (RAINBOW PARTNERS Group)?
Use the Apply button above to submit your application directly to QUANTEAM - North America (RAINBOW PARTNERS Group). Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the Fullstack developer React / C# position at QUANTEAM - North America (RAINBOW PARTNERS Group) located?
This position is based in CA. QUANTEAM - North America (RAINBOW PARTNERS Group) has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Fullstack developer React / C# at QUANTEAM - North America (RAINBOW PARTNERS Group) earn?
QUANTEAM - North America (RAINBOW PARTNERS Group) has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Fullstack developer React / C# role at QUANTEAM - North America (RAINBOW PARTNERS Group) posted?
This role was posted on April 13, 2026 (56 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
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