Senior Top Secret Cleared Systems Administrator (15 years) with extensive experience in Linux/Unix enterprise environments in the Public Sector

Our Public Sector Client is looking for a Senior Top Secret Cleared Systems Administrator (10 years) with extensive experience in Linux/Unix enterprise environments to support operations, security, monitoring, documentation, and lifecycle management of Enterprise Level Hardware Systems running Linux/Unix . Responsibilities: Provide advanced, senior-level Linux/Unix systems administration including performance tuning, monitoring, backup/recovery, automation, and client support. Install, configure, and maintain enterprise-level hardware systems and associated software. Develop and implement system security procedures and disaster recovery plans. Monitor server statuses (availability, alarms, resource usage) and proactively address issues. Provide expert-level guidance to programmers and analysts on system usage and best practices. Participate in planning, deployment, and lifecycle management of IT infrastructure. Document operational procedures using MS Office or Confluence. Mentor and transfer knowledge to staff. Attend regular meetings with the Technical Authority to report on status, risks, and recommendations. Provide regular status reports (monthly) outlining progress, tasks, and decisions. Must Haves: Federal Government Top Secret or Secret Clearance Degree/Diploma in a related IT field 10 Years working as a Systems Administrato r in a secure enterprise environment performing installation, monitoring, troubleshooting, and support activities in a Linux/Unix Enterprise Level environment. Nice to Haves: 10 Years experience working as a Systems Administrator in a secure enterprise environment performing installation, monitoring, troubleshooting, and support activities. 10 Years experience managing enterprise-level hardware systems within a secure, production environment and securing Linux/Unix operating systems through patching, hardening, and implementing OS-level security measures. 10 Years experience supporting disaster recovery processes, including data backup and restoration activities, as well as writing operational and security procedures, as well as creating technical documentation. 10 Years experience performing system patching, performance tuning, capacity planning, and hardening in enterprise environments. Apply

Location: Ottawa, Ontario, CA

Posted Date: 11/2/2025