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Windows Systems Administrator

Quadrant, Inc.
Full Timemid
Virginia, USPosted March 16, 2026

Job Description

Windows Systems Administrator

Arlington, VA

Pay From: $100,000.00 per year

MUST:

Experienced Windows Systems Administrator (3+ years)

Must have active TS/SCI clearance

10 years of relevant IT systems engineering or systems administration experience supporting enterprise Windows environments

Experience supporting systems within classified DoD enterprise environments.

Experience with Virtual Desktop Infrastructure (VDI).

PowerShell scripting and automation experience

Sec+ certification required

DUTIES

Provide Tier 3 support for in-house developed systems and site-unique enhancements.

Support maintenance of current and future versions of supported IT systems.

Maintain server operating systems at required versions.

Maintain COTS, GOTS, and Open-Source software at required versions.

Perform installation, configuration, administration, and troubleshooting of supported systems.

Support incident, change, and configuration management processes in accordance with lifecycle support requirements.

Administer Active Directory user and group management functions.

Support VMware virtual machine administration and Virtual Desktop environments.

Provide support for DNS, DHCP, backup and restore operations, SAN storage fundamentals, and desktop imaging tools.

Assist with PowerShell scripting and automation efforts as needed

Quadrant is an affirmative action/equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, status as a protected veteran, or status as an individual with a disability. "Healthcare benefits are offered to all eligible employees according to compliance mandated by the Affordable Care Act".

Quadrant, Inc. is an equal opportunity and affirmative action employer. Quadrant is committed to administering all employment and personnel actions on the basis of merit and free of discrimination based on race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, or status as an individual with a disability. Consistent with this commitment, we are dedicated to the employment and advancement of qualified minorities, women, individuals with disabilities, protected veterans, persons of all ethnic backgrounds and religions according to their abilities.

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