Python Developer Quant

Company: Bruin
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Location: London
Job Description:

This range is provided by Bruin. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

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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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Posted: May 27th, 2026