Skip to content

General information

Requisition #
R61059
Locations
USA-VA-Chantilly
Posting Date
06/11/2025
Security Clearance Required
Top Secret
Remote Type
Onsite
Time Type
Full time

Description & Requirements

Shape the future of defense with ManTech! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with ManTech!

ManTech seeks a motivated, career and customer-oriented Systems Administrator to join our team in Chantilly, VA. The position is onsite
 

The System Administrator (SA) is an instrumental part of a small, highly technical team providing WAN/LAN systems integration and support of a virtualized Windows client-server medium enterprise in a VMware Virtual Desktop Infrastructure (VDI) environment. The Help Desk supports approximately 1,000 users, and 40 remote sites with zero clients connecting to Windows workstations, multi-function printers, VoIP phones, and Video Teleconference systemsThe team consists of a PM, three System Engineers and four other SAs.
 

Responsibilities include but are not limited to:

  • Tier 1-2 help desk support for user issues reported over the phone or in the ticket system

  • Monitor system and network performance

  • Centralized encryption key management

  • Perform system maintenance

Minimum Qualifications

  • 3+ of related system administration experience

  • 3+ years of experience in the Information Technology field including Windows workstations, Windows servers, Active Directory, and Exchange

  • 2+ years of experience supporting users and troubleshooting user issues

  • DoD 8570 IAT level 2 certification: Security+ CE

Preferred Qualifications

  • 5 years of experience working with DoD networks, network encryption devices

  • Crypto key management

  • Experience with VMware vSphere 7-8

Clearance Requirements:

  • Must be a US Citizen and have an active Top-Secret clearance adjudicated within last 6 years

  • Ability to obtain TS-SCI security clearance

Physical Requirements:

  • Must be able to remain in a stationary position 50%.

  • Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.

  • The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.


ManTech International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with ManTech, please email us at careers@mantech.com and provide your name and contact information.