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

Top Secret / SCI Clearance Jobs

Top Secret/SCI

Viewing 1 - 20 of 15,883

Top Secret / SCI Jobs requiring security clearance

Show:
Sort by:

ISSO

New
Oak Leaf Solutions
Apply today! Be one of the first candidates to apply for maximum exposure.
Posted today
2+ yrs exp
TS/SCI
Full Scope Polygraph

Are you passionate about securing mission-critical systems and supporting national security? We are seeking a Level 1 Information Systems Security Officer (ISSO) to join our team!. In this role, you w...

user avatar

Information Systems Security Manager (ISSM), JM - PR 1370

New
PESystems
Apply today! Be one of the first candidates to apply for maximum exposure.
Bedford, MA(On-Site/Office)
Posted today
TS/SCI
Not Specified

PE Systems, Inc. has a great opportunity for a Information Systems Security Manager (ISSM), JM - PR 1370 supporting Nuclear Command, Control, and Communications (NC3) Program at Hanscom AFB, MA locati...

user avatar

Delegated Authorizing Official 3

New
InisCore Technologies
Apply today! Be one of the first candidates to apply for maximum exposure.
Annapolis Junction, MD(On/Off-Site)
Posted today
TS/SCI
Full Scope Polygraph

Required Clearance: TS/SCI w/ Full-Scope Poly Clearance Delegated Authorizing Official Representative Skill Level 3  Responsible for assisting in identifying the overall security requirements for th...

user avatar

Information Systems Security Engineer 3

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

Required Clearance: TS/SCI w/ Full-Scope Poly Information Systems Security Engineer (ISSE) 3 Responsibilities:  Participate as the primary security engineering representative on engineering teams fo...

user avatar

1789 - Sr. Information Assurance Security Engineer (IASE) - Onsi

New
Rollout Systems
Apply today! Be one of the first candidates to apply for maximum exposure.
Arlington, VA(On-Site/Office)
Posted today
TS/SCI
Not Specified

Seeking a highly motivated and driven Sr. Information Assurance Security Engineer (IASE) (Air Systems) to work Onsite supporting enterprise IT for our War-fighter customer who upholds America's status...

user avatar

Systems/Network Administrator

New
Insight Global, Inc.
Apply today! Be one of the first candidates to apply for maximum exposure.
Hanscom Afb, MA(On-Site/Office)
Posted today
2+ yrs exp
TS/SCI

Overview: • Position: Network / Systems Administrator • Duration: Through 2033 • Program: Cybersecurity and Engineering Program • Supporting: DoD USAF • Location: Hanscom AFB (west of Boston) • Rate:...

user avatar

Strategic AI Governance Advisor SME

New
Gemini Industries Inc
Apply today! Be one of the first candidates to apply for maximum exposure.
Warrenton, VA(On-Site/Office)
Posted today
10+ yrs exp
TS/SCI

Position:Strategic AI Governance Advisor SME (Advisor – SME) Location:Warrenton, VA (Onsite) Clearance:TS/SCI Education:MS (or a BS plus an additional 8 years of experience, 4 of which must be work-...

user avatar

Strategic Initiative Officer Skill Level 5

New
Gemini Industries Inc
Apply today! Be one of the first candidates to apply for maximum exposure.
Springfield, VA(On-Site/Office)
Saint Louis, MO(On-Site/Office)
Posted today
TS/SCI

Strategic Initiative Office – Skill Level 5 HDN Office (NGA-W) Location: Springfield, VA or St. Louis, MO The National Geospatial-Intelligence Agency (NGA) is a Department of War (DoW) combat suppo...

user avatar

Staff System Engineer- VMWare/Nutanix (Nebraska)

New
Amentum
Apply today! Be one of the first candidates to apply for maximum exposure.
Omaha, NE(On-Site/Office)
Posted today
5+ yrs exp
TS/SCI

Purpose and Impact: In support of a challenging, critical, and rewarding program that provides integrated voice, video, and data services throughout the Information Technology lifecycle, Amentum is se...

user avatar

Systems Maintainer - Day Staff 102081

New
Information Technology Engineering Corporation
Apply today! Be one of the first candidates to apply for maximum exposure.
Aurora, CO(On-Site/Office)
Posted today
TS/SCI
CI Polygraph

Systems Maintainer Location: Aurora, CO. Required Clearance: Top Secret/SCI with CI Poly Since 1999, ITEC has been a powerhouse in supporting mission-critical programs for the DoD and I...

user avatar

Senior Test Engineer

New
Que Technology Group
Apply today! Be one of the first candidates to apply for maximum exposure.
Laurel, MD(On-Site/Office)
Posted today
TS/SCI
Full Scope Polygraph

Que Technology Group, Inc., is seeking a motivated Senior Test Engineer to support automated test frameworks and scripts across multiple applications and environment. ETR applications require strong a...

user avatar

Sr. System Engineer

New
Seneca Holdings
Apply today! Be one of the first candidates to apply for maximum exposure.
Arlington, VA(On-Site/Office)
Posted today
TS/SCI
Not Specified

Great Hill Solutions, LLC is part of the Seneca Nation Group (SNG) portfolio of companies. SNG is Seneca Holdings' federal government contracting business that meets mission-critical needs of federal ...

user avatar

Sr. Financial Manager

New
Seneca Holdings
Apply today! Be one of the first candidates to apply for maximum exposure.
Arlington, VA(On-Site/Office)
Posted today
TS/SCI
Not Specified

Great Hill Solutions, LLC is part of the Seneca Nation Group (SNG) portfolio of companies. SNG is Seneca Holdings' federal government contracting business that meets mission-critical needs of federal ...

user avatar

Senior Analyst

New
Seneca Holdings
Arlington, VA(On-Site/Office)
Posted today
TS/SCI
Not Specified

Great Hill Solutions, LLC is part of the Seneca Nation Group (SNG) portfolio of companies. SNG is Seneca Holdings' federal government contracting business that meets mission-critical needs of federal ...

user avatar

Program Manager

New
Seneca Holdings
Apply today! Be one of the first candidates to apply for maximum exposure.
Arlington, VA(On-Site/Office)
Posted today
TS/SCI
Not Specified

Great Hill Solutions, LLC is part of the Seneca Nation Group (SNG) portfolio of companies. SNG is Seneca Holdings' federal government contracting business that meets mission-critical needs of federal ...

user avatar

Cyber Engineer, Technical SME

New
Seneca Holdings
Apply today! Be one of the first candidates to apply for maximum exposure.
Arlington, VA(On-Site/Office)
Posted today
TS/SCI
Not Specified

Great Hill Solutions, LLC is part of the Seneca Nation Group (SNG) portfolio of companies. SNG is Seneca Holdings' federal government contracting business that meets mission-critical needs of federal ...

user avatar

Data Center/IT Equipment Space Manager

New
Vetegrity
Apply today! Be one of the first candidates to apply for maximum exposure.
Columbia, MD(On-Site/Office)
Posted today
TS/SCI
Full Scope Polygraph

Job Description Data Center/IT Equipment Space Manager **An active TS/SCI clearance with a Full Scope polygraph is required to be considered for this opportunity. Applicants who do not meet the minimu...

user avatar

Tier 3 Service Desk/System Administrator - TS/SCI

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

Location: Bethesda, MDCategory: DevOpsTravel Required: NoRemote Type: NoClearance: TS/SCI Sunayu, LLC is seeking a highly skilled TS/SCI Tier 3 Service Desk/System Administrator to join our team suppo...

user avatar

Cloud Security SME - TS/SCI

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

Location: Bethesda, MDCategory: Cyber Security Architecture and EngineeringTravel Required: NoRemote Type: NoClearance: TS/SCI Sunayu, LLC has an exciting opening for you as a Cloud Security SME & Cyb...

user avatar

MD-Test Engineer- TS/SCI w/ Polygraph

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

Location: Annapolis Junction, MD Category: Test EngineerTravel Required: NoRemote Type: NoClearance: TS/SCI w/ Polygraph Position RequirementsAnalyzes system requirements and concept of operations doc...

user avatar
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