Quantitative Python Engineer - Leading Trading Firm | Paris
Our client is seeking a Quantitative Python Engineer to join one of their highest‑performing teams at their leading global trading firm in Paris. This is a business‑critical role focused on building, optimising, and maintaining tools that empower world‑class researchers to deliver cutting‑edge strategies.
This position sits at the intersection of technology, quantitative research, and high‑performance engineering, making it ideal for someone with strong software fundamentals and a genuine interest in quantitative problem‑solving.
What You'll Do:
- Develop, test, and maintain pricing, risk, and research-supporting models and infrastructure
- Write clean, high‑performance Python (and some C++) for latency‑sensitive and mission‑critical systems
- Improve development pipelines, testing frameworks, and monitoring tools
- Contribute to high‑quality engineering practices: code reviews, design discussions, CI/CD
- Work across a broad range of financial instruments and datasets
- Translate research needs into robust, scalable technical solutions
- Work closely with quant researchers, requiring strong quantitative thinking and communication
Requirements:
- 3+ years of Python experience, ideally in fast-paced, technically rigorous environments
- Strong experience from either finance, top-tier tech or engineering-driven companies.
- Experience covering the entire software development lifecycle.
- Solid understanding of:
- Numerical/statistical libraries: NumPy, Pandas, Polars
- Software engineering best practices - testing, CI/CD, Git workflows
- Maths or partially quantitative degrees are a strong plus.
- Familiarity with C++ is greatly appreciated.
- Awareness of pricing libraries such as QuantLib, Strata, or similar
- High energy, curiosity, and enthusiasm for learning about financial products and quant research workflows
Benefits:
- Generous paid time off
- Competitive savings plans and financial wellness tools
- Hybrid working model
- Free breakfast, lunch, and snacks
- Wellness benefits, including in‑office experiences and reimbursement for select fitness expenses
- Company-sponsored sports teams & fitness events
- Opportunities to get involved in volunteering and charitable initiatives
- Regular social events, happy hours, celebrations, and team activities
- Workshops and continuous learning programs, supporting long-term professional growth
- A supportive, respectful, and diverse workplace where collaboration comes first
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