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Senior Red Team Operator

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  • Role overview
  • Who are we looking for
  • Our benefits
  • The process
  • Why apply
  • Meet our people
  • Cyber Security
  • London

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.

Take the next step in your career.

The role

The Adversary Emulation (AE) team is G-Research’s internal Red Team and a core part of the wider Security Assurance function. The team provides the Board and Executive Management Team with independent insight into the security of our most important information, helping to inform security decisions at the highest levels of the business.

AE operations range from a few weeks to more than a year. Each engagement emulates different internal and external threat actors, testing a broad range of systems, processes and assumptions. The variety and complexity of this work creates continuous opportunities to tackle challenging problems, develop technical expertise and work as part of a highly collaborative team.

Key responsibilities of the role include:

  • Researching threat actors, target environments and defensive controls to design realistic attack paths and operation-specific kill chains
  • Developing custom tooling, tradecraft and tactics, techniques and procedures (TTPs) to support offensive operations
  • Executing adversary emulation operations, contributing to operational decision-making and adapting approaches as new information emerges
  • Documenting and sharing technical knowledge, operational experience, OPSEC techniques and ways of working
  • Providing subject matter expertise on emerging cyber threats and offensive security techniques
  • Contributing to the continuous improvement of team tooling, processes and operational capabilities

Who are we looking for?

The ideal candidate will have the following skills and experience:

  • Several years’ experience conducting offensive security operations, such as red teaming or computer network operations, ideally within technology or financial services
  • Strong communication, organisational and analytical skills, with excellent attention to detail
  • Ability to identify novel attack paths and achieve operational objectives while maintaining realistic threat actor emulation
  • Ability to make sound decisions and deliver results in ambiguous, fast-changing environments
  • Administrator-level experience in Windows 11 and Linux systems
  • Strong scripting skills in Powershell, Python or similar, and programming experience in languages such as C/C++, Go or C#
  • Advanced understanding of operational security, offensive techniques and defensive technologies, including how security controls can be bypassed or mitigated

Why join us?

  • Highly competitive compensation plus annual discretionary bonus
  • Lunch provided (via Just Eat for Business) and dedicated barista bar
  • 30 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
Location: London
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Simon Cyber Security Manager

"There are lots of people within the business that have started as a junior and progressed – which I think is testament to G-Research's belief in fostering growth and recognising potential."

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What our people say

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David Director of Open Source Development

"Knowing that we make a difference to the bottom line of our business while also doing good for others in a collaborative way brings an extra layer of satisfaction to my day."

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Ivan DevOps Engineer

"I'm exposed to many different technologies and I get to learn the basics and then develop my skills with that technology further."

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Jonathan Open Source Evangelist

"Out of all the places where I've worked, it's the only place where I can say that I'm constantly learning from my colleagues. I really feel like this has made me grow a lot."

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Caterina Director of Open Source Developer Experience

"We have the built-in advantage of a collaborative culture, working with open source software developers who are global and come from all different kinds of backgrounds and environments."

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Adam ML Open Source Software Manager

"I get to build software that solves real problems for my colleagues, while also being part of the global Open Source community."

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Peter Quantitative Research Intern

"My internship was a hugely valuable experience that sharpened my skills and gave me a new perspective on building models with real-world impact."

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Matteo Quantitative Research Intern

"One of the things that has truly stood out to me is the collaborative and welcoming culture. I hadn’t expected such a supportive environment but it’s been one of the main reasons I’ve enjoyed working here from day one."

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Margot HRIS manager

"I enjoy how dynamic the work environment at G-Research is. It keeps you busy and continuously creates opportunities to develop yourself and your career, too."

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Mario FPGA Manager

"While some people might think working in finance may not be too exciting, at G-Research, it is, especially if you see it as a problem to solve. How do we solve this algorithm? How do we get faster? This is why I think people are really excited to work here."

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Alexander Software Engineer

"I've felt very lucky to work with teams of people across the business who are generous with their time, knowledge and ideas as we collaborate to continuously build and rebuild complex systems with lots of moving parts."

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Our Benefits

Our benefits are designed with our people in mind, with a wide range of flexible options tailored to your needs.

Finance
  • Company pension scheme
  • Annual discretionary bonus scheme
  • Season ticket loan
  • Give as you Earn (GAYE)
  • Risk protection benefits
  • Charity fundraising matching scheme
  • Generous relocation and immigration assistance
Health
  • Comprehensive private health insurance, including GP access, dental and vision
  • Enhanced health support for male and female health, fertility, family forming, maternity and menopause journeys
  • Healthcare cash plan covering a wide range of routine and complimentary healthcare expenses
  • Employee Assistance and Wellness Programmes
Lifestyle
  • 30 days’ annual leave, with an extra five days for those who are office based
  • Enhanced leave polices to support our people and their family needs
  • Back-up dependent care for children, adults and pets
  • Complimentary travel insurance for our people and their families
  • Cycle schemes
  • Gym and Fitness membership subsidies
  • Free lunch and complimentary barista bar
  • Regular company socials
  • Informal dress code and excellent work-life balance
  • Talks from world-class guest speakers
We want benefits to work for our people and use a flexible benefits platform to support this – colleagues can opt-in or out of certain benefits and can customise cover levels depending on their lifestyle and personal needs.