Find your dream job NOW!

Click on Location links to filter by Job Title & Location.
Click on Company links to filter by Company & Location.
For exact match, enclose search terms in "double quotes".

Keywords: System Administrator - active Top Secret required, Location: USA

Page: 11

Network & Computer Systems Administrator - Intermediate

Secret (must be a US Citizen). Tele-work and Travel: On-site. Contract: This position is supporting an active, funded.... Currently, we are seeking a Network & Computer Systems Administrator - Intermediate. This role supports our Navy customer...

Posted Date: 10 Jan 2026

Network/System Administrator

a Secret Security Clearance with Top Secret eligibility Overview: This position will support the network/servers/AV/LRA...+ (or 8570 equivalent), CCNA (preferred) Clearance: Secret Clearance needed with Top Secret eligibility The Location...

Posted Date: 17 Dec 2025

Journeyman Systems Administrator

+ Certification Active Top Secret Clearance with SCI and SAP eligibility Working knowledge of Windows server administration.... Experience with system monitoring and performance tuning. Strong scripting skills (Bash, Python preferred). Excellent...

Posted Date: 28 Jan 2026

Systems Administrator

and groups in Active Directory and create and modify Group Policy Objects. Report on system uptime and SLA performance. Audit... a current Top Secret clearance with SCI access (TS/SCI). Applicants selected will be subject to a U.S. government security...

Location: Stafford, VA
Posted Date: 25 Jan 2026

Sr. Principal System Administrator

, or an advanced degree and 5 years of direct experience. Active and transferable U.S. government issued top secret security clearance... are eligible for a security clearance​ Security Clearance Type: Secret - Current Security Clearance Status: Active and existing...

Location: Tucson, AZ
Posted Date: 24 Jan 2026

Systems Engineer - DOORS Administrator (Level 2)

LMCareers Business Unit SPACE Security Clearance Top Secret Shift First Direct/Indirect Direct Business... must be U.S. citizens and hold an active Secret clearance. - Successful candidates will have 8+ years of relevant engineering experience...

Posted Date: 23 Jan 2026
Salary: $84300 - 146165 per year

Systems Administrator

U.S. GOVERNMENT, THIS POSITION WILL REQUIRE U.S. CITIZENSHIP AS WELL AS, A U.S. GOVERNMENT SECURITY CLEARANCE AT THE TOP SECRET / SCI..., Development, Test, and Evaluation (RDT&E) classified and unclassified networks IT Coordinating and configuring the Secret Wide...

Posted Date: 16 Jan 2026
Salary: $84000 per year

Network/System Administrator (Net/Sys Admin) II - Lompoc, CA

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able... to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: IT Infrastructure and Operations...

Company: General Dynamics
Location: Lompoc, CA
Posted Date: 03 Jan 2026
Salary: $93662 - 107286 per year

AF IC ITE Systems Administrator (Senior)

to manage multiple complex tasks in a properly sequenced manner based on mission priorities. Security Clearance: Active Top... and system administration for the Air Force Intelligence Community Information Technology Enterprise at the 363 ISRW. Key...

Company: Peraton
Location: Hampton, VA
Posted Date: 25 Dec 2025
Salary: $112000 - 179000 per year

System Administrator 3

Skills Security Plus Certification Top Secret, SCI Tier 5 Active must have been active in the last 24 months... (US) Infrastructure Operations (SUSIO) – IT Site Operations Support Technician and provide system operations support for break/fix...

Company: LanceSoft
Location: Seal Beach, CA
Posted Date: 16 Dec 2025

System Administrator 3

Skills Security Plus Certification Top Secret, SCI Tier 5 Active must have been active in the last 24 months... and provide system operations support for break/fix, installation, access control, information assurance and request fulfillment...

Company: LanceSoft
Location: Seal Beach, CA
Posted Date: 16 Dec 2025

Linux System Administrator - Sr

and Active Top Secret SCI with Polygraph, as the customer is NOT sponsoring clearances. Security+ Certification (IAT level 2...). Maintaining system reliability and uptime of production applications by measuring and monitoring availability, latency...

Company: Crimson Phoenix
Location: Chantilly, VA
Posted Date: 06 Dec 2025

System Administrator / Image Generator SME / J-NEEO / Nellis AFB

. Basic Qualifications A current active Top Secret Level Clearance with an investigation completed within the last 5 years.... Desired skills Previous or active DoD Top Secret/SCI security clearance. Familiarity with Aechelon's products and services...

Company: Lockheed Martin
Location: Nellis AFB, NV
Posted Date: 04 Nov 2025
Salary: $93800 - 162610 per year

Systems Administrator

and advanced IT concepts. Clearance: Active Secret clearance with eligibility for Top Secret; U.S. Citizenship required. Experience... with Nutanix Hybrid Cloud, Windows Servers, Active Directory, SQL Server, Hyper-V, VMware, and network hardware/media. Familiarity...

Posted Date: 28 Jan 2026

Sr. Systems Administrator

are eligible for a security clearance​ Security Clearance Type: DoD Clearance: Top Secret Security Clearance Status: Active... in a related field. Active and transferable U.S. government issued Top Secret security clearance is required prior to start...

Posted Date: 27 Jan 2026
Salary: $75800 - 144200 per year

Entry-Level Systems Administrator - Fully Cleared

hours per week, normal day-shift hours Clearance: Active Top Secret Clearance with Full Scope Polygraph... Minimum Qualifications Clearance: Active Top Secret Clearance with Full Scope Polygraph required Citizenship...

Posted Date: 15 Jan 2026
Salary: $105000 - 138000 per year

Deskside Administrator I

with the ability to obtain a Top Secret with SCI eligibility or have an active Top Secret with SCI eligibility...), we will not consider candidates for this position who do not meet the aforementioned conditions. Must have an active Secret clearance...

Company: American Systems
Location: Arlington, VA
Posted Date: 31 Jan 2026

Network Exchange Administrator

experience) Required Skills and Experience Clearance Required: Top Secret/SCI Current DoD 8570 IAT Level II certification...Overview GovCIO is currently hiring for Senior Network Administrator to manage secure network operations in support...

Company: GovCIO
Location: Quantico, VA
Posted Date: 31 Jan 2026

MECM Administrator

) Administrator to join our team in Doral, FL. Responsibilities Administer MECM to manage software deployments, OS imaging... for software and operating system rollouts Monitor system performance and troubleshoot MECM-related issues, ensuring timely...

Company: GovCIO
Location: Doral, FL
Posted Date: 31 Jan 2026

Deskside Administrator I

with the ability to obtain a Top Secret with SCI eligibility or have an active Top Secret with SCI eligibility... will not consider candidates for this position who do not meet the aforementioned conditions. Must have an active Secret clearance...

Company: American Systems
Location: Arlington, VA
Posted Date: 30 Jan 2026