Tier 2 IT Systems Administrator

Job Summary

• Maintains IT infrastructure end-point devices including:
• Experience supporting Windows domain environments

GovSG is searching for our next great tier 2 IT system administrator with a Top-Secret clearance to add to the stellar onsite support team in North Charleston, SC. This full‑time position supports NAVWAR’s Naval Information Warfare Center (NIWC) Atlantic Research, Development, Test & Evaluation (RDT&E) network as a Tier 2 system administrator providing advanced desktop and systems support for both network‑connected and standalone laboratory environments in various locations.

This position supports Windows domain administration, virtual machine deployments, endpoint infrastructure, STIG implementation, and continuous monitoring activities within secure DoD lab environments. The Tier 2 system administrator serves as an escalation point beyond Tier 1 and works closely with engineers and cybersecurity personnel to ensure operational reliability and compliance.

This position is on‑site in Charleston, SC.

This position is responsible for systems infrastructure including engineering, implementation and integration, and technical services and support. Designs, implements, installs, maintains, and administers infrastructures including hardware, software, and various configurations. Monitors overall performance to proactively identify potential issues and tune appropriately. Performs root cause analysis on failed components and implements corrective measures. Works with others to establish and improve processes and procedures.

Performs other duties as assigned.

• Assists in the management of Windows domain environments
• Supports desktop operations and troubleshooting in RDT&E lab environments
• Performs virtual machine builds and deployments in support of system integration
• Installs, configures, and maintains external workstation hardware and authorized software
• Performs server/workstation installations and technology refreshes
• Troubleshoots, diagnoses and resolves hardware and software issues
• Performs scheduled system upgrades

• Maintains IT infrastructure end-point devices including:
  • Workstations and laptops
  • Printers
  • Desk and mobile phones
  • Audio/visual equipment
• Maintains end-point data backups and ensures data integrity
• Participates in the patch management process
• Supports configuration management & change management activities and documentation

• Supports tracking and implementation of DISA Security Technical Implementation Guidelines (STIGs)
• Assists in RMF artifact development and continuous monitoring activities
• Ensures systems align with DoD cybersecurity standards

• Works with a team supporting network-connected and standalone RDT&E laboratories
• Creates and maintains technical documentation
• Leads and assists with projects as needed
• Utilize multiple support tools and systems, including:
  • MS Teams
  • Service Now
  • Active Directory
  • Microsoft Configuration Manager

• Active Top Secret Clearance required
• Typical education:
  Bachelor’s degree in a business or technical field
• Have 10 or more years professional experience in computer systems analysis
• Experience supporting Windows domain environments
• Experience with virtual machine builds and deployments
• Experience with system patching and configuration management
• Familiarity with DISA STIG implementation and DoD cybersecurity practices
• Excellent troubleshooting and solution development skills
• Professional customer service attitude
• Ability to work independently and as part of a team

• Windows 11 (Udemy or equivalent)
• Red Hat Linux System Administration (Udemy or equivalent)
• Mac OS Jamf (Udemy or equivalent)
• DCWF Windows System Administrator – Cyber Exchange/JKO (DISA-US1379)
• Microsoft Certified IT Professional is a plus

• Competitive pay and benefits, including PTO and company matched 401k
• Development opportunities through comprehensive training suite
• Ability to make an impact supporting the warfighter
• Opportunities to engage with the community through volunteering
• The above description reflects the details considered necessary to describe the principal functions of the job and should not be construed as a detailed description of all the work requirements that may be performed in the job.

GovSG is an Equal Opportunity Employer, including Minorities/Females/Veterans/Disabled. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, pregnancy, sex, sexual orientation, national origin, genetic information, physical or mental disability, military service, protected veteran status, or any other characteristic protected by applicable federal, state and local law. Know your Rights:
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