ClearanceJobs
  • Candidates
  • Employers
  • Hiring Companies
  • News & Career Advice
  • Login
  • Register now

Top Secret / SCI Clearance Jobs

Top Secret/SCI

Viewing 1 - 20 of 15,227

Top Secret / SCI Jobs requiring security clearance

Show:
Sort by:

Mid-Senior Network Engineer

New
Infinity Systems Engineering, LLC
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
TS/SCI
CI Polygraph

Salary Range: $ 140000.00 To 180000.00 (USD) Annually Infinity’s niche in the aerospace and defense industry is specialized solutions that help bridge the gap between space and ground. This is...

user avatar

System Administrator, Level 3

New
Independent Software
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
TS/SCI
Polygraph

What You Will Do:As a Systems Administrator, Level 3 you will be responsible for maintaining and improving a hybrid infrastructure that includes both Linux and Windows systems, container platforms, an...

user avatar

Analytical Assistant

New
ISN Corporation
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
TS/SCI
Not Specified

Join One of the Fastest-Growing Companies in Government Services!At ISN Corporation, headquartered in Bethesda, Maryland, we deliver specialized professional services to over 100 Federal government ag...

user avatar

Cyber Threat Analyst

New
ICF
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
TS/SCI
Not Specified

DescriptionICF is a mission-driven company filled with people who care deeply about improving the lives of others and making the world a better place. Our cybersecurity experts work to protect the fun...

user avatar

Sr. Technical Writer II (6338)

New
MetroStar Systems Inc.
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
TS/SCI
CI Polygraph

As Sr. Technical Writer II, you'll support written and graphic support for a large, complex data-driven IT project for a classified customer. Content materials will support day to day project team and...

user avatar

Sr. DevOps Engineer III (6281)

New
MetroStar Systems Inc.
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
TS/SCI
CI Polygraph

As Sr. DevOps Engineer III, you'll play a critical role in designing, implementing, and maintaining secure and efficient software development and deployment pipelines. You will collaborate with cross-...

user avatar

Senior Security Assistant

New
KIHOMAC, Inc.
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
TS/SCI
Not Specified

Description Expertise and Functions Provide support to C3BM Security Team in managing daily tactical level personnel security actions to include but not limited to:Collateral, SAP and SCI in- and out-...

user avatar

Information Systems Security Manager II (ISSM II)

New
System High Corporation
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
TS/SCI
Polygraph

Description *This position requires a TS/SCI Clearance and Special Access Program Experience* At System High Corporation-a Top Washington-Area Workplace (The Washington Post, 2023-2025), a Top Wor...

user avatar

Activity Security Representative II

New
System High Corporation
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
TS/SCI
Polygraph

Description *This position requires a TS/SCI Clearance and Special Access Program Experience* At System High Corporation-a Top Washington-Area Workplace (The Washington Post, 2023-2025), a Top Workp...

user avatar

ISSO III - Information Systems Security Officer III

New
Watermark Risk Management International, LLC
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
TS/SCI
Polygraph

Come make your mark with Watermark! 🎖 FOUNDED BY USAF VETERANS in 2007, we are proud to be a Service-Disabled Veteran Owned Small Business.🌎 SUBJECT MATTER EXPERTS specializing in secu...

user avatar

Senior Solutions Architect

New
Radiance Technologies
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
TS/SCI
CI Polygraph

We are seeking a highly skilled Solutions Architect with a comprehensive background in SIGINT and GEOINT architecture supporting Airborne Intelligence, Surveillance and Reconnaissance Operations and T...

user avatar

SIGINT Network Analyst

New
Radiance Technologies
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
TS/SCI
CI Polygraph

We are seeking a highly skilled SIGINT Network Analyst with a background in military intelligence (Army 35T, 353T, or equivalent Air Force/Navy MOS) to support Airborne Signals Intelligence (SIGINT) S...

user avatar

Security Control Assessor (SCA) I

New
System High Corporation
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
TS/SCI
Polygraph

Description At System High Corporation-a Top Washington-Area Workplace (The Washington Post, 2023-2025), a Top Workplaces Culture Excellence honoree (April 2025), and a three-time VETS Indexes 3-Star ...

user avatar

Program Security Representative III

New
System High Corporation
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
TS/SCI
Polygraph

Description *This position requires a TS/SCI Clearance and a minimum of two years of Special Access Program Experience* At System High Corporation-a Top Washington-Area Workplace (The Washington P...

user avatar

Course Administrator

New
The MASY Group LLC
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
TS/SCI
CI Polygraph

Your Mission The MASY Group is a growing Nunn Perry award-winning government service company providing intelligence analysis, educational and operational support to federal agencies like the Departmen...

user avatar

System Administrator

New
Scorpion Inc
Apply today! Be one of the first candidates to apply for maximum exposure.
Fort Belvoir, VA(On-Site/Office)
Posted today
2+ yrs exp
TS/SCI
CI Polygraph

IT Technician/ Data Center Engineer/System Administrator Location: Ft Belvoir, VA Summary: Seeking an experienced, customer-facing Linux System Administrator to support efforts in a US Government ...

user avatar

Remote Sensing Systems Technical Expert (OND Future Warfare)

New
Red Gate Group
Apply today! Be one of the first candidates to apply for maximum exposure.
Springfield, VA(On-Site/Office)
Posted today
10+ yrs exp
TS/SCI
CI Polygraph

The Red Gate Group is seeking a Remote Sensing Systems Technical Expert to support future warfare initiatives and advanced GEOINT capabilities within the National System for Geospatial-Intelligence (N...

user avatar

Senior International Acquisitions Technical & Engineering Suppor

New
Red Gate Group
Apply today! Be one of the first candidates to apply for maximum exposure.
Springfield, VA(On-Site/Office)
Posted today
10+ yrs exp
TS/SCI
CI Polygraph

The Red Gate Group is seeking a Senior International Acquisitions Technical & Engineering Support professional to provide lifecycle acquisition, engineering, and technical leadership in support of a N...

user avatar

Network Development Engineer Apprentice, , AWS Opportunity for V

New
Amazon
Apply today! Be one of the first candidates to apply for maximum exposure.
Seattle, WA(On-Site/Office)
Posted today
TS/SCI
Polygraph

DescriptionThis apprenticeship opportunity is for U.S. citizens who have served in the U.S. Armed Forces including Reserves, National Guard, and service member spouses.NOTE: Please have this experienc...

user avatar

Active Directory Systems Engineer

New
IT-CNP
Apply today! Be one of the first candidates to apply for maximum exposure.
Annapolis Junction, MD(On-Site/Office)
Posted today
10+ yrs exp
TS/SCI
Full Scope Polygraph

Active Directory Systems Engineer Salary Range: $130,000 - $155,000 Key Responsibilities: ● Must possess troubleshooting skills with Active Directory Infrastructure, Azure AD, Group Policies, DNS, P...

user avatar
ClearanceJobs
  • About Us
  • Support
  • Browse Jobs
  • Security Clearance FAQs
  • AgileATS
  • FedWork
  • Blog
  • Privacy Policy
  • Terms of Service
  • My Privacy Rights
  • Pay My Bill
  • Contact Us
  • EULA
Download on the App StoreGet it on Google Play

© 2026 ClearanceJobs - All rights reserved. ClearanceJobs is a DHI service.