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System Administrator

Job Description - System Administrator


 

 The System Administrator provides Tier-3 operational and maintenance support for enterprise IT and data center monitoring systems. This role ensures system availability, security compliance, and continuous monitoring across regional and global infrastructures.

Key Responsibilities

  • Administer and maintain enterprise monitoring and logging platforms including:
     
    • Nagios (multi-region)
       
    • NetFlow/sFlow collectors
       
    • HP Network Node Manager (HPNMi)
       
    • HP Network Automation (HPNA)
       
    • Syslog and Cribl
       
  • Maintain regional and global instances to ensure continuous availability and mission support.
     
  • Perform system scaling, configuration changes, and performance tuning as operational requirements evolve.
     
  • Execute patching and upgrades of applications and systems for:
     
    • Security compliance
       
    • Bug remediation

       
  • Provide advanced troubleshooting and root cause analysis for mission-impacting incidents.
     
  • Assist with alert tuning, false positive reduction, and onboarding of new monitoring alerts.
     
  • Support enterprise environmental logging and monitoring infrastructures to meet uptime SLAs.
     
  • Track incidents, service requests, and changes
     
  • Support log retention, storage, and restoration processes.
     
  • Assist users with software installation, usage, and operational best practices.

Requirements

Top Secret SCI w/ Polygraph Clearance Required

 

Required Skills

  • Linux system administration
     
  • Enterprise monitoring tools (Nagios, NetFlow, Syslog)
     
  • Network troubleshooting fundamentals
     
  • Patch and configuration management
     
  • Incident response and operational support in secure environments

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