Senior Linux HPC Systems Administrator / Engineer

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Location: Stevenage, Hertfordshire (hybrid/onsite) Onsite: 3 days/week onsite+ able to attend site at short notice (hands-on hardware support) My client islooking for aSenior Linux HPC SysAdmin/Engineer(minimum10 years enterprise ITexperience) to support aLinux-based high-performance/scientific computing environment. Youll providehands-on onsite supportto technical/scientific users, maintaining critical infrastructure and high-end workstations. Key responsibilities Administer, configure and supportRed Hat Enterprise Linux (RHEL 8/9)environments (stability, performance, security) Supporthigh-end workstationsand resolve hardware/software issues onsite SupportHPC environmentsincludingclusteringandworkload management (Slurm) Monitor and troubleshoot performance issues (includingGPU / networkingimpact) UseServiceNowfor incident/change/ticket management and drive process improvements ManageSSL certificatesand assist withweb server configurationwhere required Work closely with stakeholders and vendors; communicate technical topics clearly and build strong working relationships Required skills / experience 10+ yearsenterprise IT, with strong hands-onRHEL (8 & 9)administration Experience supportingscientific xehkeey users/applicationsand/or research computing environments HPC exposure:Slurm,clusters, and general HPC operations/support Strong troubleshooting acrossLinux, hardware and applications Confident stakeholder communication (onsite support is a key part of the role) Nice to have ServiceNow experience Broader knowledge ofnetworking, performance monitoring tooling, andGPU technologies