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 We’re looking for a Cloud Engineer to take ownership of our AWS landing zones and shared platform services by designing secure, scalable, multi-account environments that balance autonomy for engineering teams with strong governance and compliance. You’ll deliver robust, automated foundations using infrastructure as code, enabling consistent and repeatable cloud adoption across the organisation. This is a highly collaborative role, working closely with application engineers, architecture, security and other platform teams to support the design and delivery of cloud-based workloads. You’ll provide architectural guidance, define best practices and ensure reliability, security and operational excellence are embedded throughout the stack. Key responsibilities of the role include: Designing and operating secure, scalable multi-account AWS environments and platform foundations Defining and implementing organisation-level security controls, tooling and observability capabilities Collaborating with architecture, security and engineering teams to continuously improve compliance, reliability, cost efficiency and user experience Acting as a subject matter expert for application teams, providing guidance and hands-on support with cloud-native application design, deployment and effective use of the platform Building and maintaining infrastructure-as-code patterns and automation to support consistent cloud adoption Tracking AWS service developments and evolving platform capabilities and best practices Participating in the out-of-hours rota to support critical systems Who are we looking for? The ideal candidate will have the following skills and experience: Strong experience designing and operating AWS-based platforms and distributed systems Hands-on experience running production, multi-account AWS environments A security-first mindset, with experience building platforms in regulated or security-sensitive environments Solid understanding of AWS identity, networking and data perimeter controls Experience defining guardrails and platform standards that enable teams to move quickly and safely Deep, hands-on experience with AWS security services used at scale, including Organizations, CloudTrail, Security Hub, Config, GuardDuty and Inspector Proficiency in Terraform and Python for infrastructure automation Familiarity integrating cloud infrastructure into CI/CD pipelines Comfortable working across engineering, architecture and security teams The ability to explain complex technical concepts clearly to both technical and non-technical audiences Why should you apply? 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