IT & Systems Administration jobs in United States (page 3)
IT & Systems Administration roles in or open to United States. 1,867 open roles from 664 employers, 1064 with salary shown. Updated Nov 5, 2026.
- Systems AdministratorLeidos · Suitland, MD
- Site Operations, Junior System AdministratorLeidos · Clarksburg, WV
- Systems AdministratorSP - Orbital Space Systems · Colorado Springs, CO
- Windows Systems Administrator (Onsite)RTX · Mckinney, TXOn-site
- Help Desk Technician IIIGD Information Technology, Inc. · San Antonio, TX
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- Systems AdministratorGD Information Technology, Inc. · Fort Belvoir, VA$114k–154k/yr
- Storage Engineer – Enterprise Data Center & Cloud ServicesGD Information Technology, Inc. · Springfield, VA$141k–191k/yr
- Windows Desktop Administrator – Senior Systems AdministratorGD Information Technology, Inc. · Davis, AZ$85k–89k/yr
- Information Technology Support Specialist - TS/SCI w/PolyGD Information Technology, Inc. · Annapolis Junction, MD
- Information Technology Support Specialist - TS/SCI w/PolyGD Information Technology, Inc. · Annapolis Junction, MD
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- Windows Desktop Administrator – Senior Systems AdministratorGD Information Technology, Inc. · Offutt AFB, NE$85k–105k/yr
- F-35 Systems Administrator | Active Secret clearanceGD Information Technology, Inc. · Arlington, VA$71k–82k/yr
- DSS PMD Systems AdministratorGD Information Technology, Inc. · USA DC Washington
- Help Desk TechnicianGD Information Technology, Inc. · MacDill AFB, FL
- Lead Enterprise IT Systems Architect - TS/SCI with PolygraphGD Information Technology, Inc. · Chantilly, VA$213k–288k/yr
- SCITLS Help Desk Technician IIIGD Information Technology, Inc. · Offutt AFB, NE
- Service Desk System AdministratorARMA Global Corporation · Newington, VA$98k–132k/yr
- Network Systems AdministratorGD Information Technology, Inc. · Fort Cavazos, TX$58k–69k/yr
- Service Desk Specialist - Secret Clearance RequiredGD Information Technology, Inc. · Arlington, VA
- Senior Nlyte DCIM Systems Administrator - TS/SCI with PolygraphGD Information Technology, Inc. · Chantilly, VA$140k–190k/yr
- Help Desk ManagerARMA Global Corporation · Tampa, FL$98k–127k/yr
- Service Desk TechnicianARMA Global Corporation · Newington, VA$89k–121k/yr
- Systems Administrator Intermediate – TS/SCI RequiredGD Information Technology, Inc. · Fort Meade, MD$83k–113k/yr
- NCIS SQL Database Administrator | Active Top Secret clearanceGD Information Technology, Inc. · Quantico, VA$122k–165k/yr
- Tier-2 Ground Terminal / IT Technician _Junior Level_TS/SCI with PolygraphGD Information Technology, Inc. · Aurora, CO
- Tier-2 Ground Terminal / IT Technician _Intermediate Level_TS/SCI with PolygraphGD Information Technology, Inc. · Aurora, CO
- Tier-2 Ground Terminal / IT Technician_Senior Level_TS/SCI with PolygraphGD Information Technology, Inc. · Aurora, CO
- Systems Administrator LVL II (C4ISR)GD Information Technology, Inc. · Fort Wainwright, AK
- NCIS Senior VMware Administrator/SAN Storage Administrator | Active TS/SCI clearanceGD Information Technology, Inc. · Quantico, VA$122k–165k/yr
- Classified Help Desk Manager Sign on Bonus PotentialThe Boeing Company · Hazelwood, MOOn-site$140k–190k/yr
- Systems Administrator - TS/SCI with PolygraphGD Information Technology, Inc. · Chantilly, VA$106k–144k/yr
- Systems Administrator SME - TS/SCI with PolygraphGD Information Technology, Inc. · Reston, VA$162k–219k/yr
- Systems Administrator Intermediate – TS/SCI requiredGD Information Technology, Inc. · Fort Belvoir, VA$80k–108k/yr
- NCIS Windows Systems Administrator | Active Top Secret clearanceGD Information Technology, Inc. · Quantico, VA$94k–108k/yr
- Linux System Administrator - active Top Secret requiredGD Information Technology, Inc. · USA DC Washington$108k–127k/yr
- Help Desk Technical Support - Shift 11:00pm - 7:30am Friday - Tuesday - Secret or TS preferredGD Information Technology, Inc. · USA DC Washington
- Help Desk Specialist IIGD Information Technology, Inc. · USA DC Washington
- Tier-1 Network Monitor/Help Desk SupportGD Information Technology, Inc. · Langley AFB, VA$56k–75k/yr
- Help Desk Tech - MIDS - TS/SCI w. PolygraphGD Information Technology, Inc. · Annapolis Junction, MD
- Systems Administrator ExpertGD Information Technology, Inc. · Annapolis Junction, MD$148k–200k/yr
- Junior Help Desk Technician (Tier 1) - All shifts available - Active Top Secret requiredGD Information Technology, Inc. · USA DC Washington
- Directory Services Systems Administrator - Active Top Secret requiredGD Information Technology, Inc. · USA DC Washington$108k–140k/yr
- Service Desk TechnicianGD Information Technology, Inc. · El Segundo, CA
- Tier 2 / Systems Administrator - Onsite - Active Top Secret requiredGD Information Technology, Inc. · USA DC WashingtonOn-site
- Information Technology Support Specialist - TS/SCI w/PolyGD Information Technology, Inc. · Annapolis Junction, MD
- Systems Administrator Senior – TS/SCI requiredGD Information Technology, Inc. · Fort Shafter, HI$92k–124k/yr
- Senior Active Directory Engineer - Active Top Secret requiredGD Information Technology, Inc. · USA DC Washington$149k–201k/yr
- Help Desk Technician- MIDS - Ts/Sci W/ POLYGD Information Technology, Inc. · Annapolis Junction, MD
- Help Desk Technician II - TS/SCI W/ polyGD Information Technology, Inc. · Annapolis Junction, MD
- NCIS Help Desk Analyst Tier 2 | Active Top Secret clearanceGD Information Technology, Inc. · Quantico, VA