Quantitative Analyst, Front Office (Calypso)

About the role

Nasdaq Calypso builds mission-critical risk, regulatory and trading technology for major financial institutions. As a Quantitative Analyst reporting to a Senior Quantitative Analyst, you will design, implement and productionize the pricing and risk models used by clients' trading desks globally. The role is based in Paris with a hybrid setup of at least 3 days per week in the office.

Key responsibilities

• Develop and maintain pricing, risk and XVA models across rates, FX, credit, equity and commodities.
• Translate mathematical specifications into high-performance, well-tested production code, owning models end-to-end from derivation to deployment.
• Partner with clients' quantitative analysts and traders to calibrate, validate and extend models to new products and markets.
• Work with engineering teams on performance optimization, including vectorization, parallel compute and adjoint sensitivity techniques.
• Contribute to AI/ML initiatives on model acceleration, calibration and anomaly detection, and write technical documentation for model validation reviews.

Required profile

• PhD (or equivalent research experience) in Mathematics, Physics, Engineering, Computational Finance or a related quantitative discipline.
• Up to 5 years of experience in derivatives analytics as a Quantitative Analyst across any asset class.
• Strong communication across global, cross-functional teams including traders, engineers and clients.

Required skills

• Java, C++ or C# with collaborative development, version control and code review.
• Stochastic calculus, numerical methods (Monte Carlo, PDE, finite difference) and derivative pricing theory.
• Preferred: algorithmic differentiation libraries, XVA or margin calculation engines, PyTorch/JAX/scikit-learn, cloud-native development and production analytics libraries.

What we offer

• Base salary, annual bonus and equity grant, plus an employee stock purchase plan.
• Pension plan with company contribution, 6 extra days off per year and paid volunteer time.
• Health insurance, 24/7 mental health support and a global mentoring program.
• Unlimited e-learning access, hybrid work and a modern office with snacks and weekly breaks.