Core Infrastructure 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 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 of the role include: * 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_