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Keywords: IT Systems Engineer - Top Secret Clearance, Location: USA

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Senior Network Engineer Data Center Manager

refresh, and maintaining all IT hardware to support customer’s Top-Secret Network. Provides resolutions to out of the...MANTECH seeks a motivated, career and customer-oriented Senior Network Engineer Data Center Manager to join our team...

Company: ManTech
Posted Date: 01 Jan 2026

Lead Propulsion Engineer

processes and methods Ability to obtain Top Secret Clearance is a plus Ability to stay focused and succeed in dynamic and fast.... Prior work in DoD Missile, Reentry Vehicle, or Hypersonics fields. A detailed understanding of the top-down systems...

Company: Leidos
Location: Huntsville, AL
Posted Date: 23 Dec 2025
Salary: $131300 - 237350 per year

Aerospace Modeling and Simulation Engineer

Must be a U.S. Citizen with an active Secret Security Clearance and have the ability to obtain a Top Secret/SCI clearance with polygraph... a talented aerospace modeling and simulation engineer within the Flight Systems Department. As part of the Leidos Threat Analysis...

Company: Leidos
Location: Huntsville, AL
Posted Date: 12 Dec 2025
Salary: $69550 - 125725 per year

Endpoint Security as a Service (ESS) Engineer

-edge technical solutions. Basic Qualifications: Active Top Secret clearance (SCI eligible). 8+ years of IT experience...Description Leidos is seeking a skilled and driven Endpoint Security as a Service (ESS) Engineer and Systems...

Company: Leidos
Location: Fort Belvoir, VA
Posted Date: 25 Dec 2025
Salary: $92300 - 166850 per year

Endpoint Security as a Service (ESS) Engineer

-edge technical solutions. Basic Qualifications: Active Top Secret clearance (SCI eligible). 8+ years of IT experience...Description Leidos is seeking a skilled and driven Endpoint Security as a Service (ESS) Engineer and Systems...

Company: Leidos
Location: Waldorf, MD
Posted Date: 25 Dec 2025
Salary: $92300 - 166850 per year

Endpoint Security as a Service (ESS) Engineer

-edge technical solutions. Basic Qualifications: Active Top Secret clearance (SCI eligible). 8+ years of IT experience...Description Leidos is seeking a skilled and driven Endpoint Security as a Service (ESS) Engineer and Systems...

Company: Leidos
Location: Upper Marlboro, MD
Posted Date: 25 Dec 2025
Salary: $92300 - 166850 per year

IT Systems Engineer - Top Secret Clearance

ultimate goal of enabling human life on Mars. IT SYSTEMS ENGINEER - TOP SECRET CLEARANCE SpaceX is looking for a Systems... situations. ADDITIONAL REQUIREMENTS: Active Top Secret or TS/SCI with Polygraph. Note that an active clearance may provide...

Company: SpaceX
Location: USA
Posted Date: 07 Nov 2025
Salary: $120000 - 160000 per year

Staff Systems Engineer (Top Secret Clearance Required)

LMCareers Business Unit RMS Security Clearance Top Secret Shift First Direct/Indirect Direct Business..., or equivalent experience/combined education. You currently hold a Top Secret clearance. The Work: We are in search...

Posted Date: 17 Oct 2025

Cyber Security Engineer I/II/III – Top Secret Clearance | Norfolk, VA

Cyber Security Engineer I/II/III – Top Secret Clearance | Norfolk, VA Cambridge International Systems, Inc... Top Secret security clearance. Proficient with modern IT tools and infrastructure technologies * Develops technical...

Posted Date: 07 Jan 2026

Software Engineer (Top Secret Security Clearance Required)

Title: Software Engineer (Top Secret Security Clearance Required) Belong. Connect. Grow. with KBR! KBR’s National... Clearance: Active U.S. Government Top Secret / SCI security clearance (U.S. citizenship required) Education: Bachelor’s degree...

Company: KBR
Posted Date: 14 Jan 2026
Salary: $92700 - 139000 per year

Site Reliability Engineer - Top Secret Clearance

ultimate goal of enabling human life on Mars. SITE RELIABILITY ENGINEER - TOP SECRET CLEARANCE As a Site Reliability... Experience in Bash, Python, or other scripting languages Active Top Secret, Top Secret SCI, or DOE Level Q clearance...

Company: SpaceX
Location: USA
Posted Date: 10 Jan 2026
Salary: $120000 - 145000 per year

Software Engineer (Top Secret Security Clearance Required)

Title: Software Engineer (Top Secret Security Clearance Required) Belong. Connect. Grow. with KBR! KBR’s National... Security Clearance: Active U.S. Government Top Secret / SCI security clearance (U.S. citizenship required) Education: Bachelor...

Company: KBR
Posted Date: 10 Jan 2026
Salary: $92700 - 139000 per year

Embedded Software Engineer (QGOV Division) - (Top Secret Clearance Highly Desired)

Summary: Job Overview: Embedded Software Engineer (QGOV Division) - (Top Secret Clearance Highly Desired) Location: San... and government standards is a plus. Must be a US Citizen. Must be eligible to obtain a Top Secret security clearance. Qualcomm...

Company: Qualcomm
Location: San Diego, CA
Posted Date: 08 Jan 2026

Embedded Software Engineer (QGOV Division) - (Top Secret Clearance Highly Desired)

Summary: Job Overview: Embedded Software Engineer (QGOV Division) - (Top Secret Clearance Highly Desired) Location: San... and government standards is a plus. Must be a US Citizen. Must be eligible to obtain a Top Secret security clearance. Qualcomm...

Company: Qualcomm
Location: San Diego, CA
Posted Date: 08 Jan 2026

Embedded Software Engineer (QGOV Division) - (Top Secret Clearance Highly Desired)

Summary: Job Overview: Embedded Software Engineer (QGOV Division) - (Top Secret Clearance Highly Desired) Location: San... and government standards is a plus. Must be a US Citizen. Must be eligible to obtain a Top Secret security clearance. Qualcomm...

Company: Qualcomm
Location: San Diego, CA
Posted Date: 08 Jan 2026

Embedded Software Engineer (QGOV Division) - (Top Secret Clearance Highly Desired)

Summary: Embedded Software Engineer (QGOV Division) - (Top Secret Clearance Highly Desired) Location: San Diego... that leverage Qualcomm's leadership in mobile innovation. Applicants must be eligible to obtain a Top-Secret security clearance...

Company: Qualcomm
Location: San Diego, CA
Posted Date: 08 Jan 2026
Salary: $100200 - 166900 per year

G2 Infrastructure Engineer | Active Top Secret clearance

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

Company: General Dynamics
Location: USA
Posted Date: 05 Jan 2026
Salary: $128039 - 173229 per year

Laser Communication Engineer (Level III) - Top Secret clearance

optical communication (laser communication) Active Top Secret clearance; must be able to obtain a TS/SCI; US Citizenship...LMCareers Business Unit SPACE Security Clearance TS/SCI Shift First Direct/Indirect Direct Business...

Company: Lockheed Martin
Location: Littleton, CO
Posted Date: 24 Dec 2025

RF Engineer - Antenna (Level III) - Top Secret clearance

to RF engineering requirements Knowledge of RF communications systems link budget analysis. Active Top Secret clearance...LMCareers Business Unit SPACE Security Clearance TS/SCI Shift First Direct/Indirect Direct Business...

Company: Lockheed Martin
Location: Littleton, CO
Posted Date: 21 Dec 2025

RF Engineer - Antenna (Level IV) - Top Secret clearance

or subsystems Experience with Antenna payload architecture and/or performance analysis Active Top Secret clearance; must be able...LMCareers Business Unit SPACE Security Clearance TS/SCI Shift First Direct/Indirect Direct Business...

Company: Lockheed Martin
Location: Littleton, CO
Posted Date: 21 Dec 2025