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

Top Secret / SCI Clearance Jobs

Top Secret/SCI

Viewing 1 - 20 of 15,378

Top Secret / SCI Jobs requiring security clearance

Show:
Sort by:

Senior Associate, Engineering Services

New
L3Harris Technologies
Apply today! Be one of the first candidates to apply for maximum exposure.
Chantilly, VA(On-Site/Office)
Posted today
TS/SCI
Polygraph

L3Harris 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...

user avatar

Engineering Technician D

New
L3Harris Technologies
Apply today! Be one of the first candidates to apply for maximum exposure.
Carlsbad, CA(On-Site/Office)
Posted today
TS/SCI
Not Specified

L3Harris 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...

user avatar

Senior Associate Systems Engineer

New
L3Harris Technologies
Apply today! Be one of the first candidates to apply for maximum exposure.
Springfield, VA(On-Site/Office)
Posted today
TS/SCI
CI Polygraph

L3Harris 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...

user avatar

Structural Dynamics Engineer (Associate or Mid-Level)

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

Job DescriptionAt Boeing, we innovate and collaborate to make the world a better place. We're committed to fostering an environment for every teammate that's welcoming, respectful and inclusive, with ...

user avatar

Information Systems Security Manager (ISSM)

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

Title:Information Systems Security Manager (ISSM)Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to our customer...

user avatar

Data Scientist -TS/SCI (FSP)

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

Introduction A career in IBM Consulting is rooted by long-term relationships and close collaboration with clients across the globe.You'll work with visionaries across multiple industries to improve th...

user avatar

Application Architect-SAP HANA Development

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

Introduction A career in IBM Consulting is rooted by long-term relationships and close collaboration with clients across the globe.You'll work with visionaries across multiple industries to improve th...

user avatar

Intel COMSEC Specialist

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

Intel COMSEC Specialist Location:100% On-Site – Huntsville, AL Security Clearance:Top Secret/SCI Required RPI Group, Inc. is seeking anIntel COMSEC Specialistto join our team in support of a critical...

user avatar

Jr-Mid Backend Software Engineer, TS/SCI w/ CI Poly - $95K-$180K

New
Millennial Software Solutions, Inc
Apply today! Be one of the first candidates to apply for maximum exposure.
Northern Virginia, VA(On-Site/Office)
Posted today
5+ yrs exp
TS/SCI
CI Polygraph

About Millennial Software: Millennial Software is revolutionizing the landscape of security and defense by leveraging our core competencies in software development, automation, DevSecOps, and machine ...

user avatar

Orbital Analyst, TS/SCI with CI Poly - $180K-$210K + 15% 401k

New
Millennial Software Solutions, Inc
Apply today! Be one of the first candidates to apply for maximum exposure.
Washington, DC(On-Site/Office)
Posted today
5+ yrs exp
TS/SCI
CI Polygraph

Millennial Software is looking for a skilled Flight Safety Orbital Analyst with expertise in orbital analysis tools, methodologies, and operational procedures. This position is located in the Washingt...

user avatar

Data Center Engineer (TS/SCI Full Scope Polygraph)

New
Zachary Piper Solutions, LLC
Apply today! Be one of the first candidates to apply for maximum exposure.
Reston, VA(On-Site/Office)
Posted today
TS/SCI
Full Scope Polygraph

Piper Companies is hiring a Data Center Engineer (TS/SCI Full Scope Polygraph) to support a secure data center environment in the Reston, VA area. The ideal candidate for the Systems Engineer - TS/S...

user avatar

Lead Space Systems Test Engineer (TS/SCI)

New
Zachary Piper Solutions, LLC
Apply today! Be one of the first candidates to apply for maximum exposure.
El Segundo, CA(On-Site/Office)
Posted today
TS/SCI
Polygraph

Zachary Piper Solutions is seekinga Space Systems Test Engineer to support a classified DoD program in El Segundo, CA. The team is seeking a systems engineer to perform hardware and software verificat...

user avatar

Thread Engineer - Clearance Required

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

Job Number 714349BR Description:This position is participating in our External Referral Program. If you know somebody who may be a fit, click here to submit a referral. If your referral is hired, you...

user avatar

Program Security Representative

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

Job Number 714569BR Description:This position requires TS/SCI clearance with ability to obtain Polygraph.The Program Security Representative will perform a variety of SCI security related duties and ...

user avatar

Java Developer - Clearance Required

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

Job Number 714508BR Description:This position is participating in our External Referral Program. If you know somebody who may be a fit, click here to submit a referral. If your referral is hired, you...

user avatar

Senior Java Developer - Clearance Required

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

Job Number 714495BR Description:This position is participating in our External Referral Program. If you know somebody who may be a fit, click here to submit a referral. If your referral is hired, you...

user avatar

Mid-Career Information System Security Officer

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

Job Number 714093BR Description:WHAT WE'RE DOINGC4ISR: Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance Across air, land, sea and space, thousands of sensors...

user avatar

Linux Systems Administrator - Clearance Required

New
Lockheed Martin
Apply today! Be one of the first candidates to apply for maximum exposure.
San Antonio, TX(On-Site/Office)
Posted today
TS/SCI
Polygraph

Job Number 714427BR Description:This position is participating in our External Referral Program. If you know somebody who may be a fit, click here to submit a referral. If your referral is hired, you...

user avatar

Systems Software Integration

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

Job Number 714492BR Description: Protecting what matters most is the mission that matters most. Space is a critical domain, connecting our technologies, our security and our humanity. While others vi...

user avatar

Program Security Representative

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

Job Number 714336BR Description:Current Secret clearance with ability to obtain TS/SCI clearance is required for this position.Exciting Opportunity for a Program Security Representative (PSR)We are s...

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.