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dataroles

Quantitative Developer

G-Research Open
London Full-time Mid-level Data Science

At a glance

Mid-level Data Science role at G-Research. London · full-time · no salary stated · we estimate £70,750–£131,900.

Estimated pay

G-Research has not published a salary for this role. The figure below is our estimate, not theirs.

£70,750 – £131,900
What the middle half of mid-level data science roles in London paid, among postings that did state a salary.
Worked out from 8 postings that stated pay, median £91,250. Last updated Oct 26, 2026.
RoleData Science
SeniorityMid-level
LocationLondon
EmploymentFull-time
PostedMar 31, 2026
Role brief

dataroles summary, based on the employer's posting.

What you'll do

  • Build software alongside quantitative researchers to turn their ideas into systems used in financial markets
  • Develop trading, modelling, simulation and research tools, including systems for testing strategy performance
  • Improve the speed and scale of trading and research systems through performance work and architectural changes
  • Create a path for machine learning models from research into production and support distributed model training

What you bring

  • You deliver well-engineered software and can own a solution from its initial design through release
  • You understand algorithms, data structures and core software engineering principles
  • You are interested in quantitative finance and how engineering supports research in that field
  • You can weigh competing technical approaches, set priorities and communicate clearly with different audiences

Who this fits

This role suits an engineer who enjoys close collaboration with researchers and building software for trading, simulation and research workflows. The position is based in London, and the core stack is C# and Python, deployed in the company’s own datacentres.

From the employer

We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity.

From our London HQ, we unite world-class researchers and engineers in an environment that values deep exploration and methodical execution - because the best ideas take time to evolve. Together we’re building a world-class platform to amplify our teams’ most powerful ideas.

As part of our engineering team, you’ll shape the platforms and tools that drive high-impact research - designing systems that scale, accelerate discovery and support innovation across the firm.

Take the next step in your career.

The role

Engineering underpins our continued growth and success, and we are committed to recruiting and developing the world’s best Engineers.

Our Quantitative Developers are the enablers of our success. They work side-by-side with our researchers to realise their ideas in global financial markets. They work at the bleeding-edge with immense compute power at their fingertips to achieve our aim: predicting the future.

The core tech stack is C# and Python, productionised in our own datacentres.

Areas of focus for these teams include:

  • Trading systems – reliable and performant systems able to trade 24/6 for our customers, with real money at stake

  • Modelling – building core capabilities and assisting quant researchers in our cutting edge prediction capabilities

  • Simulation – back-testing frameworks for validating the strategies our researchers produce and for assessing their ongoing performance

  • Research tooling – front-end UX and workflow for our quant researchers

  • Performance and scalability – optimising our trading and research systems to unlock new capabilities

To give a flavour of the work we do, here are some of our recent projects:

  • Low level performance optimisations in our core simulation engine, unlocking the next advances in quant research

  • Experimenting with alternative solvers in a core trade planning system

  • Integrating our high and low frequency systems for more optimal trading

  • Re-architecting systems to provide a seamless path from research to production for machine learning models

  • Enabling large-scale distributed training of machine learning models

  • Contributing back to open source projects

Who are we looking for?

The ideal candidate will:

  • Deliver high-quality, well-engineered software with strong architectural awareness

  • Take end-to-end ownership of solutions, from concept to delivery

  • Demonstrate solid knowledge of algorithms, data structures, and software fundamentals

  • Show interest in quantitative finance and the role of engineering within it

  • Prioritise effectively to deliver measurable business impact

  • Proactively identify and implement scalable improvements

  • Stay ahead of emerging technologies and drive their adoption

  • Apply sound judgment and balance competing approaches

  • Communicate clearly and adapt their style to different audiences

  • Understand others’ needs to deliver mutually beneficial outcomes

  • Collaborate effectively and build strong relationships across the business

Why should you apply?

  • Highly competitive compensation plus annual discretionary bonus

  • Lunch provided (via Just Eat for Business) and dedicated barista bar

  • 35 days’ annual leave

  • 9% company pension contributions

  • Informal dress code and excellent work/life balance

  • Comprehensive healthcare and life assurance

  • Cycle-to-work scheme

  • Monthly company events

G-Research is committed to cultivating and preserving an inclusive work environment. We are an ideas-driven business and we place great value on diversity of experience and opinions.

We want to ensure that applicants receive a recruitment experience that enables them to perform at their best. If you have a disability or special need that requires accommodation please let us know in the relevant section

Opportunity

Data Science work from LinkedIn, X, Reddit and Upwork, in one list.

Each morning you get everything that fits, strongest first.

Data Science

Find me work

By the team behind dataroles.

Find me work
Opportunity

Data Science work from LinkedIn, X, Reddit and Upwork, in one list.

Each morning you get everything that fits, strongest first.

Find me work

By the team behind dataroles.