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Sr. Linux/Windows Systems Administrator - Top Secret Clearance
Lockheed Martin CorporationUnited StatesJob 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
Sr. Linux/Windows Systems Administrator - Top Secret Clearance
Lockheed Martin CorporationUnited StatesJob 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
Systems Administrator / Top Secret / Onsite: Arlington, VA
Lockheed Martin CorporationUnited StatesJob DescriptionYou will be the Systems Administrator for the Advanced Concepts Lab (ACL) - a cutting edge team within Lockheed Martin's Advanced Technology Laboratories (ATL) that drives innovation. T
NCIS Systems Administrator | Active Top Secret clearance
General Dynamics Information TechnologyUnited StatesType of Requisition: PipelineClearance Level Must Currently Possess: Top SecretClearance Level Must Be Able to Obtain: Top Secret/SCIPublic Trust/Other Required: NoneJob Family: IT Infrastructure and
Systems Administrator Top Secret Clearance | Norfolk, VA
Cambridge International SystemsUnited StatesSystems Administrator Top Secret Clearance | Norfolk, VAJoin a dynamic global team united by shared values: commitment, integrity, and perseverance. At Cambridge, you'll work alongside top talent worl
Senior DevOps/Systems Administrator (Active Top Secret Clearance)
ICF International IncUnited StatesPlease note: This role is contingent upon a contract award. While it is not an immediate opening, we are actively conducting interviews and extending offers in anticipation of the award.ICF is a missi
Senior Systems Administrator (Top Secret)
Apogee Research, LLCUnited StatesApogee Research brings cutting-edge research into practice for the DoD community. We blend agility with rigor to develop new technologies and transition them into operational use. Founded in 2012, Apo
Senior DevOps/Systems Administrator (Active Top Secret Clearance)
ICFUnited StatesDescriptionPlease note: This role is contingent upon a contract award. While it is not an immediate opening, we are actively conducting interviews and extending offers in anticipation of the award.ICF
Systems Administrator - Top Secret/SCI
SUNAYUUnited StatesLocation: Bethesda, MDCategory: Systems AdministratorTravel Required: NoRemote Type: HybridClearance: Top Secret/SCISunayu, LLC is seeking a highly skilled TS/SCI Tier 3 Service Desk/System Administra
Linux & Windows Systems Administrator
Brown Brothers HarrimanUnited StatesAt BBH, Partnership is more than a form of ownership-it's our approach to business and relationships. We know that supporting your professional and personal goals is the best way to help our clients a
Linux/Windows Systems Administrator II (TS/SCI w/ Polygraph)
COMSOUnited StatesLinux/Windows Systems Administrator II (TS/SCI w/ Polygraph)Columbia, MD (http://maps.google.com/maps?q=Columbia+MD+USA+21046)Job TypeFull-timeDescriptionAbout us:COMSO, Inc. is a powerhouse when it c
RF Engineer - Antenna (Level III) - Top Secret clearance
Lockheed MartinLittletonJob ID: BR Date posted: Dec. 18, 2025Description: Space is a critical domain, connecting our technologies, our security, and our humanity. While others view space as a destination, we see it as a re
Tier 2 / Systems Administrator - Active Top Secret required
General Dynamics Information TechnologyUnited StatesType of Requisition: PipelineClearance Level Must Currently Possess: Top SecretClearance Level Must Be Able to Obtain: Top Secret/SCIPublic Trust/Other Required: NoneJob Family: IT Infrastructure and
Linux Systems Administrator II
GAMA-1 TechnologiesUnited StatesGAMA-1 Technologies, LLC seeks a highly skilled System Administrator II with a strong Linux background to provide advanced technical expertise in the design, implementation, configuration, maintenance
Junior Linux Systems Administrator
MAXIMUSUnited StatesDescription & RequirementsMaximus is seeking an entry level, Junior Linux System Administrator to support the administration, security, and automation of our Linux server environment. This role is ide
NAVAIR- Journeyman Linux System Administrator
SimVentions, IncLexington ParkOverview: SimVentions is a 100% employee-owned business and has consistently been voted one of Virginia's Best Places to Work. SimVentions is seeking a System Administrator to maintain servers for co
Infrastructure Systems Administrator - Linux (RHEL)
PeratonUnited StatesResponsibilities Peraton is seeking anInfrastructure Systems Administrator - Linux (RHEL)in our Chantilly, VA office in support of our Department of Defense (DoD) community customer as part of a highl
NAVAIR- Journeyman Linux System Administrator
SimVentions, IncComptonOverview: SimVentions is a 100% employee-owned business and has consistently been voted one of Virginia's Best Places to Work. SimVentions is seeking a System Administrator to maintain servers for co
NAVAIR- Journeyman Linux System Administrator
SimVentions, IncGreat MillsOverview: SimVentions is a 100% employee-owned business and has consistently been voted one of Virginia's Best Places to Work. SimVentions is seeking a System Administrator to maintain servers for co
NAVAIR- Journeyman Linux System Administrator
SimVentions, IncHughesvilleOverview: SimVentions is a 100% employee-owned business and has consistently been voted one of Virginia's Best Places to Work. SimVentions is seeking a System Administrator to maintain servers for co
Principal Linux Systems Administrator
Northrop GrummanUnited StatesRELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE TYPE: SecretTRAVEL: Yes, 10% of the TimeDescriptionAt Northrop Grumman, our employees have incredible opportunities to work on re
Principal Linux Systems Administrator
Northrop GrummanUnited StatesRELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE TYPE: SecretTRAVEL: Yes, 10% of the TimeDescriptionAt Northrop Grumman, our employees have incredible opportunities to work on re
Technical Systems Administrator II (TS/SCI Clearance Required)
Sierra SpaceUnited StatesSierra Space Careers:At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth. Sierra Space team members share a spirit of innovation and collaboration a
Lead, Linux Systems Administrator
L3 TechnologiesUnited StatesL3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest fo
LINUX Systems Administrator
MarkonUnited StatesDescriptionWe are seeking an experienced Linux Systems Administrator to support both Linux-based workstations and servers across physical and virtual environments for an IC customer . In this role, yo