Python Developer Quant

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Overview

My client, a leading global investment bank, is offering a unique opportunity for a talented Python developer to join their cross-asset strategy group. This is a hands-on technical role with real impact, offering the chance to work directly on the trading floor alongside front-office teams.

Applicants do not need to come from a financial services background.

This group operates independently from the traditional IT function, building Python-based tools on the firm’s proprietary platform. These systems provide strategic insight into market risk and PnL across asset classes—and play a central role in the decision-making process across the trading business.

What You’ll Be Working On

You’ll join a key initiative focused on refactoring and redesigning the core market model code that underpins how the firm understands and manages risk and PnL. The goal is to build a cleaner, more efficient, and more transparent foundation for analysing performance across teams.

In this role, you’ll

• Collaborate closely with a tight-knit team of 8 developers and strategists
• Write, optimise and debug Python code on the firm’s in-house platform
• Work with existing risk and PnL models, improving their performance and design
• Simplify and modernise legacy systems for greater efficiency and maintainability

This is an opportunity to take on intellectually challenging work in a highly technical environment. You’ll gain first-hand exposure to financial markets and be supported in developing any domain knowledge needed along the way.

We’d like to hear from you if

• You’re passionate about programming and have worked across different languages or paradigms
• You’ve built a scripting language—or at least thought deeply about how you might
• You enjoy functional programming and algorithmic problem-solving
• You have strong mathematical intuition and are keen to apply it in a real-world context
• You’re curious about financial markets and eager to grow your understanding

Ideal background

• Proficiency in Python, or similar languages such as C++, Java, or Lisp
• Excellent problem-solving and analytical thinking
• Strong communication skills and the ability to work collaboratively
• A Bachelor’s or Master’s degree in Computer Science, Mathematics, Engineering, Finance, or a related field

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Finance and Information Technology

Industries

• Investment Banking and Financial Services

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