ClearanceJobs
  • Candidates
  • Employers
  • Hiring Companies
  • News & Career Advice
  • Login
  • Register now
Experience
City
State
Clearance
Posted Within
Employer Name
Country
Job Category
Job Type
Polygraph
Remote/Hybrid
Salary
cleared systems administrator

Cleared Systems Administrator Jobs

Showing 1,593 Jobs

Sort by:
user avatar
Cleared Systems Administrator
STR•Woburn, MA
Secret Not Specified
STR is hiring a Systems Administrator with an Active Secret or Top Secret clearance. Help power the infrastructure behind cutting-edge defense research. At STR, our Information Technology team plays a...
Posted 2 days ago
user avatar
Secret Cleared Systems Administrator
Apex Systems•Rome, NY
Secret 5+ yrs exp
For immediate response, please send to jbowser@apexsystems.com: Updated Word resume, desired hourly rate, and best time to speak! Apex Systems is currently hiring for a Secret Cleared Systems Adminis...
Posted 1 month ago
user avatar
Systems Administrator SA3- Fully Cleared
Power3 Solutions•Fort Meade, MD
TS/SCI Polygraph
White Sky Technologies specializes in systems engineering and technology management solutions for U.S. Government clients. We are committed to meeting our customer's needs with a dedicated and highly ...
Posted over 6 months ago
user avatar
Sr. Systems Engineer | Florida | Cleared Systems Administrator
Lockheed Martin•Orlando, FL
TS/SCI Polygraph
Job Number 731670BR Description:Lockheed Martin's EBDT Classified IT Transformation team is modernizing the delivery of classified IT services for Business-Area partners and DoW programs. We seek an ...
Posted 1 week ago
user avatar
Senior Systems Administrator (Top Secret Cleared)
ECS•Washington, DC
Top Secret Not Specified
Job Description Everforth ECS is seeking a Senior Systems Administrator (Top Secret Cleared) to work in our Washington, DC office. Please Note: This position is contingent upon contract award. We ...
Posted 1 week ago
user avatar
Systems Administrators - multiple levels - FULLY CLEARED with PO
Constellation Technologies Inc•Fort Meade
TS/SCI Full Scope Polygraph
Linux, Jenkins, SAFe, SIEM, CloudDue to federal contract requirements, United States citizenship and an active TS/SCI security clearance and polygraph are required for the position.https://jobs.lever....
Posted over 6 months ago
user avatar
Systems Administrator - multiple levels - FULLY CLEARED with POL
Constellation Technologies Inc•Fort Meade, MD
TS/SCI Full Scope Polygraph
Linux, Windows, VMWare, Active Directory, Security+, Server Maintenance, Networking Due to federal contract requirements, United States citizenship and an active TS/SCI security clearance and polygrap...
Posted over 6 months ago
user avatar
Systems Administrator - Level 03 - FULLY CLEARED with POLYGRAPH
Constellation Technologies Inc•Aurora, CO
TS/SCI Full Scope Polygraph
Linux, Windows, UNIX, RHEL, Kali, Solaris, Ubuntu, CentOS, Debian, Fedora, Mandriva Due to federal contract requirements, United States citizenship and an active TS/SCI security clearance and polygrap...
Posted 4 months ago
user avatar
Systems Administrators - LEVEL 02 - FULLY CLEARED with POLYGRAPH
Constellation Technologies Inc•Fort Meade, MD
TS/SCI Full Scope Polygraph
Due to federal contract requirements, United States citizenship and an active TS/SCI security clearance and polygraph are required for the position.Required:Must be a US Citizen.Must have TS/SCI clear...
Posted 3 months ago
user avatar
Systems Administrators - LEVEL 03 - FULLY CLEARED with POLYGRAPH
Constellation Technologies Inc•Fort Meade, MD
TS/SCI Full Scope Polygraph
Due to federal contract requirements, United States citizenship and an active TS/SCI security clearance and polygraph are required for the position.Required:Must be a US Citizen.Must have TS/SCI clear...
Posted 3 months ago
user avatar
Systems Administrator - LEVEL 02 - FULLY CLEARED with POLYGRAPH
Constellation Technologies Inc•Aurora, CO
TS/SCI Full Scope Polygraph
Linux, Windows, UNIX, RHEL, Kali, Solaris, Ubuntu, CentOS, Debian, Fedora, Mandriva Due to federal contract requirements, United States citizenship and an active TS/SCI security clearance and polyg...
Posted 2 months ago
user avatar
Systems Administrators - LEVEL 02 - FULLY CLEARED with POLYGRAPH
Constellation Technologies, Inc•Fort Meade, MD
TS/SCI Full Scope Polygraph 10+ yrs exp
__PRIME Programs – PRIME Systems Administrators /Systems Administrators /On-siteapply for this jobDue to federal contract requirements, United States citizenship and an active TS/SCI security clearanc...
Posted 2 days ago
user avatar
Systems Administrators - LEVEL 03 - FULLY CLEARED with POLYGRAPH
Constellation Technologies, Inc•Fort Meade, MD
TS/SCI Full Scope Polygraph 10+ yrs exp
__PRIME Programs – PRIME Systems Administrators /Systems Administrators /On-siteapply for this jobDue to federal contract requirements, United States citizenship and an active TS/SCI security clearanc...
Posted 2 days ago
user avatar
Systems Administrators - multiple levels - FULLY CLEARED with PO
Constellation Technologies, Inc•Fort Meade, MD
TS/SCI Polygraph 5+ yrs exp
Linux, Jenkins, SAFe, SIEM, CloudDue to federal contract requirements, United States citizenship and an active TS/SCI security clearance and polygraph are required for the position.Required: Must have...
Posted 2 days ago
user avatar
FSO (Facility Security Officer)
Footbridge Federal•Remote/Hybrid
Top Secret 5+ yrs exp
Facility Security Officer Company: Footbridge Federal Location: Remote, with preference for candidates located in Massachusetts or Virginia Clearance Required: Active Top Secret clearance required Em...
Posted 1 month ago
user avatar
Corporate System Administrator
RealmOne•Columbia, MD
TS/SCI Polygraph
As a cleared Corporate System Administrator, you will be responsible for supporting and maintaining our corporate Windows and Linux systems, managing our Active Directory environment, maintaining netw...
Posted 2 days ago
user avatar
CLEARED Tier 2 Network Engineer
Zachary Piper Solutions, LLC•Manassas, VA
Top Secret Not Specified
Zachary Piper Solutions is looking for a CLEARED Tier 2 Network Engineer to join government consulting company supporting a Department of Energy project. This is onsite in Manassas, VA and is a full-t...
Posted 8 hours ago
user avatar
CLEARED Tier 3 Network Engineer
Zachary Piper Solutions, LLC•Washington, DC
Top Secret Not Specified
Zachary Piper Solutions is looking for a CLEARED Tier 3 Network Engineer to join government consulting company supporting a Department of Energy project. This is onsite in Washington DC and is a full-...
Posted 8 hours ago
user avatar
On-Call Administrative Assistant
FWI (FedWriters, Inc.)•Camp Springs, MD
Public Trust Not Specified
Turn complex immigration policy into clear guidance that helps millions navigate the U.S. immigration system-where clarity meets public service. If you can make the complex clear, your work will empow...
Posted 2 weeks ago
user avatar
Office Support Lead
ORBIS INC.•Honolulu, HI
Secret Not Specified
Job Description: The Office Support Lead is responsible for overseeing the day-to-day administrative operations of the office, ensuring a smooth, efficient, and professional environment. This role w...
Posted 3 weeks ago
ClearanceJobs
  • About Us
  • Support
  • Browse Jobs
  • Security Clearance FAQs
  • AgileATS
  • FedWork
  • Blog
Download on the App StoreGet it on Google Play
© 2026 ClearanceJobs - All rights reserved. ClearanceJobs is a DHI service .
  • Pay My Bill
  • EULA
  • Privacy Policy
  • Terms of Service
  • My Privacy Rights
  • Contact Us