Top Secret / SCI Clearance Jobs

Top Secret/SCI

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Top Secret / SCI Jobs requiring security clearance

Lead, Integration and Test Engineering

New
L3Harris Technologies
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Fort Wayne, IN(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...

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MBSE Systems Engineer (Level 3 or 4)

New
Northrop Grumman
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San Antonio, TX(On-Site/Office)
Posted today
TS/SCI
Not Specified

RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE TYPE: SCITRAVEL: Yes, 10% of the TimeDescriptionAt Northrop Grumman, our employees have incredible opportunities to work on revol...

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Network Engineer Full Scope Poly

New
Zachary Piper Solutions, LLC
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Raleigh, NC(On-Site/Office)
Posted today
TS/SCI
Full Scope Polygraph

Piper Companies is seeking a Full Scope Poly Network Engineer to support a federal program located in Raleigh, NC. This is an onsite role, with a preference for candidates able to work 4 daysper week ...

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Associate Computer Systems Architect/Computer Systems Architect

New
Northrop Grumman
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Manhattan Beach, CA(On-Site/Office)
Posted today
TS/SCI
Not Specified

RELOCATION ASSISTANCE: No relocation assistance availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: SCITRAVEL: Yes, 10% of the TimeDescriptionAt Northrop Grumman, our employees have incredible o...

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Manufacturing Expeditor Level 2

New
Northrop Grumman
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San Diego, CA(On-Site/Office)
Posted today
TS/SCI
None

RELOCATION ASSISTANCE: No relocation assistance availableCLEARANCE REQUIRED FOR START: NoCLEARANCE TYPE: NoneTRAVEL: Yes, 10% of the TimeDescriptionAt Northrop Grumman, our employees have incredible o...

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Cyber Systems Engineer - Level 3 or 4

New
Northrop Grumman
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Linthicum Heights, MD(On-Site/Office)
Posted today
TS/SCI
Polygraph

RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: PolygraphTRAVEL: Yes, 25% of the TimeDescriptionAt Northrop Grumman, our employees have in...

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Cyber Systems Engineer - Level 3 or 4

New
Northrop Grumman
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Fairfax, VA(On-Site/Office)
Posted today
TS/SCI
Polygraph

RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: PolygraphTRAVEL: Yes, 25% of the TimeDescriptionAt Northrop Grumman, our employees have in...

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Cyber Systems Engineer - Level 3 or 4

New
Northrop Grumman
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Aurora, CO(On-Site/Office)
Posted today
TS/SCI
Not Specified

RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: SCITRAVEL: Yes, 10% of the TimeDescriptionAt Northrop Grumman, our employees have incredib...

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Cyber Systems Engineer - Level 5

New
Northrop Grumman
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Aurora, CO(On-Site/Office)
Posted today
TS/SCI
Not Specified

RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: SCITRAVEL: Yes, 10% of the TimeDescriptionAt Northrop Grumman, our employees have incredib...

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Integration & Test Engineer - Level 3 or 4

New
Northrop Grumman
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Aurora, CO(On-Site/Office)
Posted today
TS/SCI
Full Scope Polygraph

RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: SCITRAVEL: Yes, 10% of the TimeDescriptionAt Northrop Grumman, our employees have incredib...

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Principal/Sr. Principal RF Microwave Design Engineer

New
Northrop Grumman
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Aurora, CO(On-Site/Office)
Posted today
TS/SCI
Not Specified

RELOCATION ASSISTANCE: No relocation assistance availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: SCITRAVEL: Yes, 10% of the TimeDescriptionAt Northrop Grumman, our employees have incredible o...

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Electronics Engineer V, Avionics, Top Secret Clearance

New
Lockheed Martin
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Littleton, CO(On-Site/Office)
Posted today
TS/SCI
Polygraph

Job Number 723400BR Description:Lockheed Martin is seeking a Senior Staff Electrical Engineer to join the SPP portfolio and lead the development of the overall electrical architecture for multiple pr...

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Technician Spec

New
Lockheed Martin
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Littleton, CO(On-Site/Office)
Posted today
TS/SCI
Polygraph

Job Number 722849BR Description:The coolest jobs on this planet... or any other... are with Lockheed Martin Space. Lockheed Martin is a pioneer, partner, innovator, and builder. Our amazing people ar...

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Technician Spec

New
Lockheed Martin
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Littleton, CO(On-Site/Office)
Posted today
TS/SCI
Polygraph

Job Number 722854BR Description:The coolest jobs on this planet... or any other... are with Lockheed Martin Space. Lockheed Martin is a pioneer, partner, innovator, and builder. Our amazing people ar...

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Technician Sr

New
Lockheed Martin
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Littleton, CO(On-Site/Office)
Posted today
TS/SCI
Polygraph

Job Number 722850BR Description:The coolest jobs on this planet... or any other... are with Lockheed Martin Space. Lockheed Martin is a pioneer, partner, innovator, and builder. Our amazing people ar...

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Technician Sr

New
Lockheed Martin
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Littleton, CO(On-Site/Office)
Posted today
TS/SCI
Polygraph

Job Number 722855BR Description:The coolest jobs on this planet... or any other... are with Lockheed Martin Space. Lockheed Martin is a pioneer, partner, innovator, and builder. Our amazing people ar...

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Experienced Senior Capture Manager

New
Lockheed Martin
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Littleton, CO(On-Site/Office)
Posted today
TS/SCI
Not Specified

Job Number 722994BR Description:Lockheed Martin Space (LMS) is seeking an experienced Senior Capture Manager (CM) to lead large capture campaigns across the company for opportunities valued at $500M+...

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National Security Space Stakeholder Engagement Representative

New
Lockheed Martin
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Herndon, VA(On-Site/Office)
Posted today
TS/SCI
Polygraph

Job Number 721245BR Description:The National Security Space (NSS) Stakeholder Engagement Representative is responsible for strategically planning, coordinating, and managing NSS stakeholder engagemen...

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Senior Mission Protection Systems Engineer (Onsite)

New
RTX
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Springfield, VA(On-Site/Office)
Posted today
TS/SCI
Polygraph

Date Posted:2026-04-03Country:United States of AmericaLocation:US-VA-SPRINGFIELD-8350-CUST ~ 8350 Alban Rd ~ ALBAN (External Site)Position Role Type:Onsite U.S. Citizen, U.S. Person, or Immigration St...

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Sr. Systems Administrator

New
RTX
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Richardson, TX(On-Site/Office)
Posted today
TS/SCI
Polygraph

Date Posted:2026-04-03Country:United States of AmericaLocation:US-TX-RICHARDSON-C37 ~ 1737 Cityline Dr ~ CITYLINE C37Position Role Type:Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirem...

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