Linux Engineer

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 were building a world-class platform to amplify our teams most powerful ideas.As part of our engineering team youll 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 roleWere seeking a Linux Engineer to build maintain and evolve the Linux platforms (RHEL and Ubuntu) that underpin our compute environment. You will work across the full Linux stack from OS builds and provisioning systems through to observability security and custom tooling ensuring the platform is consistent scalable and secure. This role offers the opportunity to develop deep technical expertise in Linux internals automation frameworks and performance optimisation while contributing directly to the infrastructure that powers cutting-edge quantitative research.Key responsibilities of the role include:Building releasing and maintaining core Linux OS images (RHEL and Ubuntu)Developing and operating provisioning and lifecycle management systems such as PXE boot kickstart cloud-init and image managementDesigning implementing and maintaining APIs databases and package tooling used across the firmApplying Infrastructure as Code (IaC) practices primarily using Ansible to standardise and automate deploymentsIntegrating CI/CD pipelines to automate OS build and release workflows Implementing Linux security initiatives including baseline hardening patch pipelines and compliance automationImproving observability and telemetry to track OS health provisioning and complianceTroubleshooting and resolving issues across Linux builds provisioning systems and platform servicesCollaborating with cross-functional teams to integrate features performance improvements and security updatesContinuously enhancing the reliability performance and scale of the Linux platformWho are we looking forThe ideal candidate will have the following skills and experience:Strong hands-on experience with Linux systems particularly RHEL and UbuntuDeep knowledge of Linux internals such as boot process kernel modules filesystems and package managementExperience with kernel optimisation and performance tuning such as scheduler memory and I/OKnowledge of eBPF for observability performance analysis and security enforcement is a strong plusStrong scripting and automation skills for example in Python or BashExperience with Infrastructure as Code (Ansible) and DevOps practicesFamiliarity with provisioning technologies including PXE kickstart cloud-init and image managementA clear understanding of Linux security concepts including hardening patching and complianceExperience building API-driven services package tooling or database-backed systemsProblem-solving mindset with strong collaboration skillsWhy should you applyHighly competitive compensation plus annual discretionary bonusLunch provided (viaJust Eat for Business) and dedicated barista bar30 days annual leave9% company pension contributionsInformal dress code and excellent work/life balanceComprehensive healthcare and life assuranceCycle-to-work schemeMonthly company eventsG-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 Key Skills Air Freight,Accounting & Finance,Electrical Commissioning,General Services,Civil Engineering,Linux Employment Type : Full Time Experience: years Vacancy: 1