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Senior System Administrator Jobs in United States

NCIS Senior Systems Administrator | Active TS/SCI clearance

General Dynamics Information Technology - Quantico, Virginia
Systems Administrator (Intermediate and Senior Level)

Link Solutions Inc - Fort Knox, Kentucky
Senior Systems Administrator

ManTech - Fort Meade, Maryland
Senior Systems Administrator

General Dynamics Information Technology - Fort Belvoir, Virginia
Senior Windows Systems Administrator

SAIC - CHANTILLY, Virginia
Senior System Administrator

Actalent - Troy, Michigan
Senior IT Systems Administrator

BAE Systems - Nashua, New Hampshire
Senior Systems Administrator

Applied Research Associates, Inc. - Fort Belvoir, Virginia
Senior System Administrator

Actalent - Tulsa, Oklahoma
Senior System Administrator

Actalent - New Albany, Ohio
Senior Linux Systems Administrator

Amentum - Albuquerque, New Mexico
Senior Associate, IT Systems Administrator

Sun Pharmaceuticals, Inc - United States
Systems Administrator, Senior

UIC Government Services and the Bowhead Family of Companies - Corona, California
Senior Principal Linux Systems Administrator- Must have active TS/SCI CI Poly

RTX Corporation - Aurora, Colorado
Senior Linux System Administrator 2025-4599

Integration Innovation, Inc. - Vicksburg, Mississippi
Senior Systems Administrator

Integration Innovation, Inc. (i3) - Arlington, Virginia
Senior Systems Administrator

Raft LLC - Colorado Springs, Colorado
Senior Linux System Administrator 1

L3Harris - Colorado Springs, Colorado

Senior System Administrator (ESOM - ITAM)

IT Concepts - United States
Senior Linux Systems Administrator (Red Hat)

UIC Government Services and the Bowhead Family of Companies - Dahlgren, Virginia
Senior Systems Administrator

GovCIO - Washington, District Of Columbia
Senior Systems Administrator (NetSuite and Zuora Req)

ActiveProspect, Inc. - Austin, Texas
Senior AWS Cloud Systems Operations Administrator - 28161

MAXIMUS SERVICES LLC - Austin, Texas
Senior AWS Cloud Systems Operations Administrator - 28163

MAXIMUS SERVICES LLC - Austin, Texas
Senior Systems Administrator for Secure Systems, Cockrell School of Engineering

UNIVERSITY OF TEXAS AT AUSTIN - Austin, Texas
Senior AWS Cloud Systems Operations Administrator - 28201

MAXIMUS SERVICES LLC - Austin, Texas
Linux System Administrator, Senior Specialist

Southern California Edison - Alhambra, California
Systems Administrator (Senior)

Leidos - Colorado Springs, Colorado
Senior Systems Administrator

Leidos - Huntsville, Alabama
Systems Administrator Senior

Summit Technical Solutions - Colorado Springs, Colorado
Senior Systems Administrator

Leidos - Greenbelt, Maryland
Senior Linux Systems Administrator

Leidos - Columbia, Maryland
Senior Systems Administrator

Leidos - Huntsville, Alabama
System Administrator or Senior – Grid and Market Operations - Temporary

Idaho Power Company - Boise, Idaho
Senior Systems Administrator - Operations Lead

Akima - Albuquerque, New Mexico
Senior Systems Administrator

Integration Innovation, Inc. (i3) - Huntsville, Alabama

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