System Administrator
1 week ago
System Administrator
Up to £55,000 | Permanent | Farnborough (hybrid flexibility)
National Security & Defence | Security Clearances required prior to start
Are you a system admin with Windows and Linux experience and want to keep critical systems reliable, secure, and up to date across multiple environments. Here, you'll own monitoring, patching, and hardening workflows that underpin a high-profile programme.
This is working for a growing defence consultancy with extensive growth secured for the next few years, with lots of projects in the Defence Industry. Core Focus
Proactively monitor and triage alerts (Elastic
Maintain resilient network connectivity across the estate
Run vulnerability assessments (Nessus) and action SOC outputs
Implement Firewall upgrades and configuration changes
Manage WSUS for controlled Windows patch deployments
Maintain Linux repositories and oversee patching cycles (pre-prod - prod)
Essentials
Proven System Administration in secure/enterprise environments
Hands-on with Linux and Windows Server
Patching at scale (WSUS, Linux repos) and Firewall management
Understanding of network protocols and core cyber security principles
Familiar with Elastic monitoring, Nessus, and SOC workflows
If you take pride in clean operational execution and secure-by-default systems, this is a solid fit.
There are good corporate benefits and lots of career growth and opportunities going forward. Successful applicants will be required to be security cleared prior to appointment.
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