• Senior Systems Administrator Jobs

    Jobs 1 to 20 of 27,029
  • Leidos • Odenton, MD 21113
    Description The Defense group at Leidos has a career opening for a System Administration Site Lead on a DISA contract. This role is... Read More
  • TEKsystems • Tallahassee, FL 32395
    Description Provides technical leadership and is responsible for establishing the direction for maintenance, standards, life-cycle... Read More
  • Robert Half • Asheville, NC 28815
    Description We are looking for an experienced Sr. Systems Administrator to join our team in Asheville, North Carolina. This is a... Read More
  • RTX Corporation • Tucson, AZ 85702
    Date Posted: 2025-06-25 Country: United States of America Location: AZ888: RMS AP Bldg 928 1151 East Hermans Road Building 928,... Read More
  • Robert Half • Des Moines, IA 50381
    Description Location: Hybrid position (remote with limited on-site work as needed - must reside in Iowa). Salary: $115,000 -... Read More
  • ManTech • Miami, FL 33166
    ManTech seeks a motivated, career and customer-oriented Senior Systems Administrator to join our team in Doral, FL.... Read More
  • TekSynap • Reston, VA 22096
    Responsibilities Qualifications RESPONSIBILITIES Ensure the stable and secure operation of enterprise computer systems and network... Read More
  • General Dynamics Information Technology • Falls Church, VA 22040
    Req ID: RQ202812 Type of Requisition: Regular Clearance Level Must Be Able to Obtain: Secret Public Trust/Other Required: None Job... Read More
  • Amentum • Albuquerque, NM 87190
    Amentum is a leading provider of enduring support for the essential missions of the U.S. government, its allied partners and... Read More
  • TekSynap • Reston, VA 22096
    Responsibilities Qualifications RESPONSIBILITIES Ensure the stable operation and optimization of in-house computer systems,... Read More
  • CACI International
    Senior System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Secret... Read More
  • BAE Systems • Manchester, NH 03103
    Job Description We put our customers first exemplified by our missions: We Protect Those Who Protect Us and We Innovate for Those... Read More
  • TekSynap • Washington, DC 20080
    Responsibilities Qualifications The Systems Administrator - Senior is expected to be able to: Monitors and manages system... Read More
  • ManTech • Fort George G Meade, MD 20755
    ManTech seeks a System Administrator to join our team in the Ft. Meade, MD area. In this role, you will provide support for... Read More
  • CACI International • Aurora, CO 80017
    Senior System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI... Read More
  • CACI International • Denver, CO 80238
    Senior System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI... Read More
  • Leidos • Laurel, MD 20726
    Description Leidos has a new and exciting opportunity for a Senior Systems Administrator in our National Security Sector's (NSS)... Read More
  • GovCIO • Frankfort, KY 40621
    Overview GovCIO is hiring for a Senior Systems Administrator (Linux and Windows) to provide on-going support for the administration... Read More
  • GovCIO • Lansing, MI 48915
    Overview GovCIO is hiring for a Senior Systems Administrator (Linux and Windows) to provide on-going support for the administration... Read More
  • GovCIO • Annapolis, MD 21401
    Overview GovCIO is hiring for a Senior Systems Administrator (Linux and Windows) to provide on-going support for the administration... Read More
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