Unix Platform Engineer

Department Overview: Our Technology Infrastructure team operates globally and is responsible for every aspect of the firm's hybrid platform. This ranges from our EUC/Office environments to Trading and Core service Co-Location Data Centres, and extends to Public Cloud, delivering top-tier technology services to a dynamic and demanding Trading organisation. In addition to meeting the round-the-clock operational demands of the platforms, we continuously evolve and transform our platforms to maintain a competitive edge that our business requires. We innovate to provide valuable solutions and leverage our skilled Technology teams to deliver against rapidly changing business requirements. Role Overview: As a member of our London-based Infrastructure Platform Engineering team, this position encompasses the design, engineering, and support of our multi-tenant private and public cloud initiatives. The role is integral to delivering services to our core business sectors globally, including Trading, middle and back office, and Technology. The role is responsible for the support and maintenance of the BlueCrest Linux estate and Automation Services, delivered via On-Premise, Colo and Public Cloud platforms, providing robust solutions based on leading technologies to enhance and support our business. The role delivers excellent levels of service to the business, requiring an understanding of key business processes and a solid understanding of how the solutions we deliver aid and develop our growing business. The successful candidate will understand and be involved in critical BAU and technology service delivery activities in a time-sensitive environment, whilst being innovative and implementing new solutions to enhance business performance. The successful candidate will follow pre-defined scopes, designs and plans to assist in implementing and supporting new and existing technology initiatives, while demonstrating clear communication skills. Experience required: Extensive knowledge and experience of a major Linux Enterprise Server distribution including installation, configuration, automation, administration, and support in diverse, highly dynamic, fast-paced environments - desirable: SUSE Certified Administrator/Engineer (SCA/SCE), Red Hat Certified System Administrator/Engineer (RHCSA/RHCE), or equivalent Linux certification. Experience with container platforms and tooling, including Docker, Kubernetes, Prometheus, and GitOps, is also desirable. Knowledge of integrating Linux within a Windows environment, including Active Directory and Kerberos integration. Experience designing and supporting low-latency Unix-based trading systems in exchange colocation data centres. Experience of automating and orchestrating cross-platform services using tools such as Terraform, Terragrunt, and Cloud-Init. Advanced scripting/programming skills in Python and Bash, CI/CD pipelines, APIs, and data structures such as JSON and YAML – highly desirable. Experience of server hardware implementation, maintenance, monitoring, and automation using Infrastructure as Code and Ansible, including deployment and support within colocation facilities, low-latency environments, and distributed trading platforms. Experience supporting on-premises infrastructure, integrating it with cloud platforms, and ensuring resilience, performance, and scalability across hybrid environments. Experience with AI/ML workloads, AIOps, and supporting infrastructure would be beneficial. Technology-focused and committed to continuous learning, with the ability to deliver rapidly while balancing business constraints in fast-paced enterprise trading environments. About you: The ideal candidate is an experienced Infrastructure Engineer with proven hands-on experience supporting enterprise Linux platforms, with strong expertise in SUSE Linux Enterprise Server (SLES) and/or Red Hat Enterprise Linux (RHEL). The role requires experience integrating