Linux Platform Engineer

We're seeking a Linux Engineer to build, maintain and evolve the Linux platforms (RHEL and Ubuntu) that underpin our compute environment. You'll work across the full Linux stack, from OS builds and provisioning systems through to observability, security and custom tooling.

Mathematics and science are at our core; AI pushes them further to unlock bigger thinking and bigger impact. We expect every colleague to actively bring AI into their daily workflow to deliver impact we didn't think was possible. In this role, that means helping design and use agentic frameworks to move the platform towards autonomous, closed-loop operations.

Security is a core part of the role, from hardening and patching through to vulnerability response, and the role offers the chance to develop deep technical expertise in Linux internals, automation and performance optimisation while contributing directly to infrastructure that supports large-scale quantitative research.

Building, releasing and maintaining core Linux OS images across the estate

Developing provisioning and lifecycle management systems, including PXE boot, kickstart and cloud-init

Designing and maintaining APIs, databases and package tooling used across the firm

Applying Infrastructure as Code practices, primarily using Ansible, to automate deployments

Leading vulnerability response, including CVE triage and kernel and package remediation

Helping design agentic frameworks for safe, autonomous detection and remediation

Improving observability and telemetry to track OS health, provisioning and compliance

The ideal candidate will have the following skills and experience:

Strong hands-on experience with Linux systems, particularly RHEL and Ubuntu

Deep knowledge of Linux internals, such as boot process, kernel modules, filesystems and package management

Experience with kernel optimisation and performance tuning, such as scheduler, memory and I/O, is desirable

Knowledge of eBPF for observability, performance analysis and security enforcement is a strong plus

Strong programming skills, for example in Python

Experience with Infrastructure as Code (Ansible) and broader automation practices

A strong understanding of Linux security, including hardening, patch management and compliance frameworks such as CIS benchmarks

Experience with, or a genuine interest in, agentic or AI-driven operations is beneficial

You don't need to have all of the above, but a problem-solving mindset and strong collaboration skills are essential

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

If you're relocating from within the UK or internationally to join us in London, we offer a comprehensive range of support services to assist you all the way. All costs associated with your relocation and immigration are covered by G-Research.

Concierge service: Your personal consultant will arrange travel, help find your new home and manage your move. They're also on hand to help with more bespoke requests too.

Immigration support: We'll partner you with an expert consultant who will guide you through the full immigration process.

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