Senior Python Developer – Quant Framework Build

The Role:

Join a Global Leader in Capital Markets Technology.

Are you a Python expert who has built quant trading platforms from the ground up? This is a rare opportunity to join a leading international capital markets organisation, renowned for its cutting-edge technology and fast-paced trading environment.

You will take a pivotal role in designing and delivering a new quantitative development framework, shaping the Python ecosystem that underpins trading, pricing, and risk across the front office.

Key Responsibilities:

As a Senior Python Developer (VP Level), you will:

• Lead the build of a brand-new Python-based quant development framework, owning its design, architecture, and tooling.
• Partner closely with teams in London and New York to define the Python environment, toolset, and DevOps processes from the ground up.
• Collaborate with quantitative engineers, model developers, and traders, enabling agile delivery of advanced trading and risk tools.
• Solve complex engineering challenges, laying the foundation for next-generation research and trading platforms.

Key Responsibilities:

• Build the core Python quant library used for pricing, risk analysis, and model research.
• Develop an interactive tools framework for live applications (Excel & Web).
• Implement CI/CD automation for testing, packaging, and deploying Python modules.
• Collaborate with front-office teams to implement and enhance bespoke trading solutions.

Key Requirements:

• Proven experience in building and owning quant frameworks, ideally within trading or capital markets.
• Expert-level Python development skills, with a focus on performance and scalability.
• Experience with high-performance data analytics applications.
• Solid understanding of network fundamentals and database technologies.

Desirable:

• Knowledge of PyXLL, C++/C#, or pybind.

On Offer:

• A high-impact role with full ownership of a front-office Python platform.
• £150k base + bonus + comprehensive benefits.
• A hybrid working model, with offices near Liverpool Street.
• Professional growth and exposure to a high-performing trading environment.
• A collaborative, innovative culture within a global capital markets leader.