System administrator- Staff

Amentum; Warrenton (VA); On-site; USD 90,000 - 120,000; Full time

Job summary

Amentum is seeking a Staff System Administrator in Warrenton, VA. An active TS/SCI clearance is required, along with Security+ or equivalent IAT Level II.

The role focuses on Windows environments, Active Directory/GPO, MECM deployment concepts, and delivering reliable voice, video, and data operations in mission-critical settings. You will have 4+ years of IT experience and provide high-touch customer support on-site with 25–40% CONUS travel.

Qualifications

• Active TS/SCI clearance required (with SCI eligibility)
• 4+ years of IT experience in Windows environments
• Strong knowledge of AD/GPO and MECM deployment concepts
• High-touch customer support in mission-critical settings

Skills

Windows

Active Directory/GPO

MECM

Customer support

Tools

Microsoft MECM

Job description

We’re expanding our IT team at Amentum and looking for a Staff System Administrator based in Warrenton, VA!

If you hold an active Top Secret / SCI clearance, have your CompTIA Security+ (or equivalent IAT Level II), and bring solid, foundational IT experience, this is an excellent opportunity to step into a mission-critical role supporting integrated voice, video, and data operations.

What We’re Looking For

Clearance: Active Top Secret with SCI eligibility (TS/SCI)

Experience: 4+ years of relevant IT background (Windows, Active Directory/GPO, foundational MECM deployment concepts, and high-touch customer support)

Location: Warrenton, VA (with 25-40% CONUS travel opportunities)

Whether you’re coming out of military transition or looking to advance your cleared systems career in Northern Virginia, we’d love to connect.

Feel free to send a DM or connect if you have questions about the position or the team!

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