Core Infrastructure Engineer

gresearch; Greater London; On-site; GBP 70,000 - 100,000; Full time

Benefits offered by this job

Annual discretionary bonus

Lunch via Just Eat for Business

30 days annual leave

Company pension contributions

Work-life balance

Healthcare and life assurance

Cycle-to-work scheme

Monthly company events

Job summary

G-Research, based in London, is hiring a Core Infrastructure Engineer to design, build and operate scalable platform services. You will ensure reliability, automation and end-to-end service ownership across Windows and Linux environments, Jenkins pipelines and self-hosted platforms.

Join a team that values rigorous execution, on-call readiness and collaborative problem solving in a fast-paced quantitative finance setting.

Qualifications

• Experience operating and automating infrastructure services in an enterprise environment.
• Experience across Windows and Linux environments, including Windows Server and Active Directory administration.
• Strong infrastructure as code skills, with an interest in AI-driven infrastructure management.
• Experience with Jenkins pipeline management and administration.
• Scripting experience in PowerShell, Python or both.
• Experience managing self-hosted application platforms, including upgrades, patching and monitoring.
• Proven experience owning services end to end, including deployment, monitoring, incident response and improvement.

Responsibilities

• Owning and operating Terraform Enterprise appliance, including upgrades, availability, backups and user support.
• Managing and evolving Active Directory, Windows Bastion Hosts and inventory.
• Maintaining and improving Jenkins CI infrastructure.
• Automating service provisioning, configuration and lifecycle management.
• Ensuring services are monitored, documented and recoverable.
• Collaborating with platform and application teams to deliver infrastructure solutions.
• Participating in the out-of-hours on-call rotation.

Skills

Infrastructure automation

Windows administration

Linux administration

PowerShell

Python

Jenkins pipeline management

Infrastructure as Code (IaC)

Self-hosted platform management

Incident response & on-call

Monitoring & documentation

Tools

Terraform Enterprise

Active Directory

Jenkins

Kubernetes

Windows Server

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.

Take the next step in your career.

The role

The Core Infrastructure Engineering Team owns and operates the foundational services that G-Research engineers rely on every day, from infrastructure automation and CI tooling to the platforms that keep the business running.

As a Core Infrastructure Engineer, you will be responsible for the reliability, evolution and day-to-day operation of these critical services. You will ensure they are scalable, well-automated and meet the needs of a demanding engineering organisation.

You will bring solid infrastructure experience across Windows and Linux environments, a pragmatic approach to automation and a genuine sense of ownership for the services you support.

Key responsibilities

• Owning and operating Terraform Enterprise appliance, including upgrades, availability, backups and user support
• Managing and evolving Active Directory, Windows Bastion Hosts and inventory
• Maintaining and improving Jenkins CI infrastructure
• Automating service provisioning, configuration and lifecycle management
• Ensuring services are monitored, documented and recoverable
• Collaborating with platform and application teams to deliver infrastructure solutions
• Participating in the out-of-hours on-call rotation

Who are we looking for?

The ideal candidate will have the following skills and experience:

• Experience operating and automating infrastructure services in an enterprise environment
• Experience across Windows and Linux environments, including Windows Server and Active Directory administration
• Strong infrastructure as code skills, with an interest in AI-driven infrastructure management
• Experience with Jenkins pipeline management and administration
• Scripting experience in PowerShell, Python or both
• Experience managing self-hosted application platforms, including upgrades, patching and monitoring
• Proven experience owning services end to end, including deployment, monitoring, incident response and improvement

Desirable experience

• Experience with inventory or CMDB platforms, Terraform or HCL literacy, certificate management, Kubernetes and Linux desktop support

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

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