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Senior Systems Administrator (TS/SCI) - Mission-Critical IT
Unofficial M.C. DeanUnited StatesA leading technology services company in Omaha, NE is looking for a Systems Administrator to manage mission-critical systems. This mid-senior level role requires experience in system administration, p
Top Secret Systems Administrator RMF, Windows & VMware
RPMGlobalUnited StatesA federal contractor is seeking a Systems Administrator to manage Microsoft Windows and Linux systems in support of a government client. The role involves installation, configuration, and maintenance
Sr. Linux/Windows Systems Administrator - Top Secret Clearance
Lockheed MartinKing of PrussiaJob ID: 710626BR Date posted: Nov. 12, 2025Description:What We're Doing:Lockheed Martin's Electronic, Cyber & Information Warfare (ECIW) market segment within the RMS C6ISR line of business is focused
Principal Windows Systems Administrator - Top Secret
Northrop GrummanUnited StatesPrincipal Windows Systems AdministratorAt Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for gene
NAVAIR Systems Administrator - Top Secret
ClearanceJobsUnited StatesSystem AdministratorAmerican Systems is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in Information Technology, Test & Evaluati
NAVAIR Systems Administrator - Top Secret
American SystemsUnited StatesSystem AdministratorAMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in Information Technology, Test & Evaluati
NCIS Systems Administrator | Active Top Secret clearance
ClearanceJobsUnited StatesSystems AdministratorTransform technology into opportunity as a Systems Administrator at GDIT. Shape what's next for mission-critical government projects while shaping what's next for your engineering
Systems Administrator - Active Top Secret Required
Clearance JobsUnited StatesSystems AdministratorSeize your opportunity to make a personal impact as a Systems Administrator with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most. At GD
G2 Senior Systems Administrator | Active Top Secret clearance
General DynamicsUnited StatesSenior Systems AdministratorTransform technology into opportunity as a Senior Systems Administrator at GDIT. Shape what's next for mission-critical government projects while shaping what's next for yo
Systems Administrator - Active Top Secret Required
ClearanceJobsUnited StatesSystems AdministratorSeize your opportunity to make a personal impact as a Systems Administrator with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most. At GD
Omaha-Based Systems Administrator (TS/SCI) 24/7 Desk
CACI InternationalUnited StatesA notable IT services firm in Omaha is seeking a Systems Administrator to support its Service Desk team. The ideal candidate will have a BS degree, current TS/SCI clearance, and experience with Jira a
Systems Administrator 3- TS/SCI - Omaha, NE
ClearanceJobsUnited StatesTop Secret/Sci It Hardware TechnicianM.C. Dean is building intelligence. We design, build, operate, and maintain cyber-physical solutions for the nations most recognizable mission critical facilities,
Systems Administrator 3- TS/SCI - Omaha, NE
Omaha StaffingUnited StatesJob PostingOverview M.C. Dean is Building Intelligence. We design, build, operate, and maintain cyber-physical solutions for the nation's most recognizable mission critical facilities, secure environm
Senior HPC Systems Administrator TS/SCI, Onsite
SolerityUnited StatesA recognized leader in IT and consulting services is seeking a System Administrator in Salt Lake City. This full-time, onsite role requires a TS/SCI clearance and experience in system administration,
Systems Administrator (Compliance) - TS/SCI Clearance Required with Security Clearance
Akima Infrastructure ServicesUnited StatesSystems Administrator (Compliance) TS/SCI Clearance RequiredAkima Systems Engineering (ASE) is looking for a Systems Administrator (Compliance) to work in Honolulu, HI. The Compliance Administrator pl
Systems Administrator (VDI) - TS/SCI Clearance
ClearanceJobsUnited StatesSenior VDI Systems AdministratorStrategic Business Systems is seeking a Senior VDI Systems Administrator to join our team of qualified, diverse individuals. This is part of a team that ensures the cus
Classified Networks Systems Administrator (TS/SCI) Travel Ready
Northrop GrummanUnited StatesA leading aerospace and defense company in Aurora, CO, is seeking a Systems Administrator to design and plan network communication systems. The role involves troubleshooting network issues, maintainin
Systems Administrator - 2nd Shift (TS/SCI + Polygraph)
General Dynamics Information TechnologyUnited StatesA technology and professional services company is seeking a Systems Administrator to support 24/7 operations at the customer site in McLean, Virginia. The ideal candidate will have a TS/SCI clearance
Linux Systems Administrator - TS/SCI POLY
Clearance JobsUnited StatesLinux Systems AdministratorIn a world of possibilities, pursue one with endless opportunities. Imagine Next! At Parsons, you can imagine a career where you thrive, work with exceptional people, and be
Systems Administrator - TS/SCI with Polygraph
General DynamicsUnited StatesSystems AdministratorTransform technology into opportunity as a Systems Administrator with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most while you build v
Senior Discovery Database Administrator (DBA) (Top Secret Clearance Required)
CGS Federal (Contact Government Services)United StatesSenior Discovery Database Administrator (DBA) (Top Secret Clearance Required)Senior Discovery Database Administrator (DBA) (Top Secret Clearance Required)2 days ago Be among the first 25 applicants CG
Systems Administrator IV (HPC) (TS/SCI Poly required)
Soilair SelectionUnited StatesSystems Administrator IV (HPC) (TS/SCI Poly required)Join to apply for theSystems Administrator IV (HPC) (TS/SCI Poly required)role atSoilair Selection . Job DescriptionSolerity is a recognized leader
Systems Administrator (Compliance) TS/SCI Clearance Required
Akima Infrastructure Services, LLCUnited StatesOverviewAkima Systems Engineering (ASE) is looking for a Systems Administrator (Compliance) to work in Honolulu, HI. The Compliance Administrator plays a pivotal role in supporting the computer networ
Field Systems Administrator Secret/TS Eligible RMF Expert
Systems Technology ForumUnited StatesA premier provider of management and engineering services is seeking a Field Systems Administrator to support Navy systems. This role involves installing, configuring, and maintaining operating system
Discovery Database Administrator (DBA) (Top Secret Clearance Required)
CGS Federal (Contact Government Services)United StatesDiscovery Database Administrator (DBA) (Top Secret Clearance Required)Discovery Database Administrator (DBA) (Top Secret Clearance Required)2 days ago Be among the first 25 applicants Get AI-powered a