Quantitative Developer

Dex; Greater London; On-site; GBP 100,000 - 180,000; Full time

Job summary

Dex is seeking a Quant Developer to design and build robust, production-grade software for live trading systems, simulation frameworks, and research tooling. You will own end-to-end development, collaborating closely with quantitative analysts to turn ideas into production signals.

You will contribute to core modelling libraries and research tooling, delivering high-performance, reliable software and taking ownership within a seasoned engineering group that shapes the firm’s research

Qualifications

• Production software experience, ideally in C# or Python.
• Strong object-oriented engineering with a track record of shipping robust, tested systems.
• Ability to work independently and communicate clearly with technical and non-technical partners.
• Genuine interest in applied problem-solving, particularly in quantitative finance.

Responsibilities

• Design and build robust, testable software for live trading systems and simulation frameworks.
• Develop core modelling libraries and new research tooling, from concept to production.
• Partner directly with quantitative analysts, translating complex hypotheses into production signals.
• Take end-to-end ownership of critical systems, ensuring high performance and reliability.
• Contribute to a seasoned engineering group, where your technical decisions shape research capabilities.

Skills

C#

Python

OO design

Independent work

Clear communication

Quant finance interest

Job description

This firm solves the hardest problems in quantitative finance. They apply scientific clarity to market complexity, building the platforms and tools that power high-impact research with machine learning and big data. As a Quant Developer, you'll build the end-to-end toolkit that lets quantitative analysts turn ideas into tradable signals. This isn't just maintenance; you'll design and build robust, testable software for live trading systems, simulation frameworks, and research tooling. You'll own your work, sitting close to the quants, directly shaping what the firm can explore.

The work

• Design and build robust, testable software for live trading systems and simulation frameworks.
• Develop core modelling libraries and new research tooling, from concept to production.
• Partner directly with quantitative analysts, translating complex hypotheses into production signals.
• Take end-to-end ownership of critical systems, ensuring high performance and reliability.
• Contribute to a seasoned engineering group, where your technical decisions materially shape research capabilities.

What You Bring

• Commercial experience building production software, ideally in C# and/or Python.
• Strong object-oriented engineering skills; a track record of shipping robust, tested systems.
• Ability to work independently and communicate clearly with technical and non-technical partners.
• A genuine interest in applied problem-solving, particularly in quantitative finance.