Senior Systems Administrator

ManTech (


  Full Time   Employee   Contractor


United States

Become an integral part of a diverse team that leads the world in the Mission, Cyber, and Intelligence Solutions group. At ManTech International Corporation, you ll help protect our national security while working on innovative projects that offer opportunities for advancement.

ManTech is seeking a talented and motivated multi-disciplined and customer-oriented Systems Administrator in support of multiple secure Windows based WAN and LAN Information Systems with connectivity throughout the CONUS from a central program office. The Systems Administrator will support the installation, operation and maintenance of all current and future secure Information Systems as a part of a 10 person team of IT and IA professionals.

Responsibilities include but not limited to:

  • Providing system administration support for Microsoft technology to include Windows 2008/2012 R2 Server, SQL 2008, SharePoint 2010, Active Directory, DHCP, WSUS, Exchange 2010 and Windows 7/10
  • Providing system administration support for VMware VSphere 5.x, Symantec BackupExec, VEEAM, McAfee AV, InTrust
  • Responsible for Tier 1, Tier 2 and Tier 3 System Administration
  • Providing excellent troubleshooting skills for the server and workstation (desktop) environment and ensuring end users are very satisfied with support received
  • Providing basic support for Cisco routers and switches
  • Writing and updating system operating procedures
  • Investigating and resolving operational problems helping ensure optimal system performance
  • Assisting with CONUS site deployments and site maintenance

Position requirements:

  • Requires Bachelor?s degree (in Computer Science or related field) or equivalent, and five to seven years of related experience.
  • DoD 8140/8570 qualified; minimum Security+CE required
  • Operating Systems Certification required
  • IT certifications
  • Cisco experience is a plus
  • Risk Management Framework experience is a plus
  • Must be able to lift up to 20 lbs.
  • Must be open to up to 10% annual travel
  • Valid Drivers License

Security Requirements:
US Citizenship required and active TS clearance with SCI eligibility



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