Software Engineer

G-Research; City of Westminster; On-site; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Lunch provided

35 days annual leave

9% pension contributions

Healthcare and life assurance

Cycle-to-work

Monthly company events

Informal dress code

Job summary

G-Research in London invites engineers to shape platforms and tools that accelerate quantitative research. Work alongside world‑class researchers to build scalable systems using C# and Python in our own datacentres, boosting discovery and innovation.

You’ll own features end‑to‑end, optimise performance for 24/6 trading workflows, and contribute to core simulations and research tooling. The role demands solid fundamentals, strong architectural sense, and a collaborative mindset to deliver

Qualifications

• 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.

Responsibilities

• Deliver high-quality software for trading and research platforms.
• Collaborate with researchers to realise ideas in production systems.
• Architect and implement scalable, performant solutions across our stack.
• Balance competing approaches with sound judgment and clear communication.

Skills

C#

Python

Algorithms

Data structures

Systems design

Communication

Ownership

Job description

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.

The role

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

Our Engineers 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?

• 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