Quantitative Developer

Dex; Greater London; On-site; GBP 70,000 - 120,000; Full time

Job summary

Dex is partnering with a firm in quantitative finance to hire a Quant Developer. You will build end-to-end toolkits for researchers and traders, designing robust software for live trading and simulation environments.

You will own major components, collaborate with quantitative analysts, and contribute to scalable research tooling. The role emphasizes independence, high standards, and impact on real-time market insights.

Qualifications

• Commercial experience building production software.
• Strong object-oriented engineering skills and 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 decisions shape research capabilities.

Skills

C#

Python

OO design

Production software

Job description

This role is with one of Dex's trusted partner companies. We work closely with their teams to truly understand their culture, goals, and what they're looking for, so we can match you with the right opportunity and give you context about the role before you commit to a process.

Dex is an AI recruiter agent that helps you run your job search. Tell Dex your stack, seniority, and what you want to build. We will manage your applications and surface other opportunities that are a fit.

The role

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.

Why apply through Dex

This is a rare seat in a competitive market. Apply through Dex to cut through the noise: get properly briefed on the role, understand the full company context, and skip the cold application process. We match you to this role and others like it, ensuring you only consider opportunities that genuinely fit.

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