[Up to c. £120k Comp Package | Hybrid Working - 3 Days in Office] We’re partnering with a leading global alternative investment firm expanding its Linux support function in London. This is a hands-on role for an ambitious Linux Engineer to support a wide range of teams - trading, infrastructure, security, and systems operations. Operating with significant autonomy from the UK office, you’ll join a highly technical environment focused on Red Hat Linux, infrastructure automation, identity management, and cross-platform integrations. Prior experience in financial services or similarly regulated, high-stakes environments is strongly preferred, offering exposure to critical business infrastructure, front-to-back office systems, and a clear path for technical growth Key Responsibilities Provide day-to-day support and troubleshooting for Red Hat Enterprise Linux (RHEL) systems across multiple business units and technology platforms Monitor incident queues, prioritise requests and address support tickets efficiently, escalating where necessary Deploy, configure, and maintain Linux servers and associated storage, networking, and hardware components Maintain and enhance automation scripts and infrastructure-as-code processes using Ansible, Terraform, and Python/Bash Administer and troubleshoot identity and access management tools, including Active Directory integrations and Kerberos-based authentication Collaborate with Windows, Security, and Engineering teams to ensure system performance, integrity, and compliance Conduct detailed root cause analysis following incidents, develop corrective actions, and maintain updated operational documentation Manage filesystem configurations, NFS/CIFS mounts, and storage technologies including LVM and ZFS (where applicable) Participate in change control processes, release management, and cross-team project delivery Support hybrid on-prem and cloud infrastructure environments, contributing to continuous platform modernisation initiatives Participate in an on-call rotation (typically one week in every four), providing support for critical production systems out-of-hours What You’ll Bring 3-5 years’ experience supporting Linux infrastructure within a production environment, ideally as a second-role engineer Hands-on knowledge of Red Hat Enterprise Linux (RHEL) installation, administration, and performance optimisation Confident scripting capability with at least one language such as Bash or Python (flexibility on primary language; willingness to learn is highly valued) Experience with configuration management and automation tools, particularly Ansible and Terraform Grasp of identity access management fundamentals, with exposure to Kerberos or equivalent systems Experience with Kubernetes clusters and containerised workloads Familiarity with network services and protocols such as DNS, DHCP, TCP/IP, NFS/CIFS, Samba and related services Comfort with analysing system logs, monitoring performance metrics, and proactively resolving issues Organised, methodical, and able to produce high-quality technical documentation and troubleshooting guides Familiarity with cloud platforms such as AWS or hybrid cloud deployment (Preferred) Experience supporting Linux systems within financial services, trading, or other regulated, performance-driven industries (Preferred) Exposure to ZFS file systems
Linux Support Engineer | Global Alternative Investment Firm