Job Description

General information

Requisition #
R67363
Locations
USA-VA-Quantico
Posting Date
04/30/2026
Security Clearance Required
TS/SCI
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 USMC IT Service Desk in Stafford, VA.

Responsibilities include but are not limited to:

• Maintain multiple networks for over 600 users
• Assist in administering and maintaining Windows servers, Windows Workstations, Virtual Machines, and other critical systems in an enterprise environment
• Use Microsoft Service Manager, Remedy, ServiceNow, or other ticketing system to create, update, monitor, and close tickets
• Diagnose and resolve technical hardware and software issues by conducting basic and tier II troubleshooting for servers, workstations, and applications within the Active Directory environment
• Assist and support with account creations, resetting passwords, troubleshooting system and network problems, installation of hardware and workstations, unlocking accounts, and transferring data
• Support Accreditation efforts, to include STIGS, POAMs, SAARs, and other critical Processes
• Update/Create documentation as needed (user guides, admin guides, knowledge base articles, FAQs, quick reference guides)

Minimum Qualifications:

• At least 3 years of related experience in Service Desk or System Administration roles.
• Meet DoD 8570 IAT Level II requirements
• Experience with Active Directory (user account creation, password resetting, PKI setup, group policy, etc.)
• Experience developing and maintaining system applications/security/network configurations
• Experience troubleshooting network performances issues
• Experience with the set-up, configuration, and support of internal and external networks

Preferred Qualifications:

• Knowledge of standard DoD and Marine Corps concepts, practices, and procedures.
• Active Directory, Group Policy, Linux OS, Networks, MS Exchange, MS Lync, SCCM,
  Service Manager, MS Hyper-V, MS SQL Server, Networked Printers/Services, Distributed File Services, Data Protection Manager, SMB, JavaScript, SharePoint
• PowerShell scripting using any/all the respective plugins related to the applicable
  technologies
• Working knowledge of DoD STIGs related to the applicable technologies and how to
  implement, mitigate, and write POAM statements

Clearance Requirements:

• An active DoD Top Secret/SCI clearance is required for this position.

Physical Requirements:

• Must be able to remain in a stationary position 50%.
• Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.

MANTECH 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.