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10,000+
"linux engineer"
jobs
in
National Security
in last 30 days
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10,000+
"linux engineer"
jobs
in
National Security
in last 30 days
Show all >
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Date
Last 30 days
Ground Avionics Systems Engineer Jobs
APPLY
Clearance
Shalimar, FL
L5 Senior
September 11th, 2026
Computer Systems Engineers/Architects
National Security
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Systems Engineer- Orlando, FL
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Serco North America
Cocoa Beach, FL
L6 Lead
September 11th, 2026
Computer Systems Engineers/Architects
National Security
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Senior Model-Based Systems Engineer (MBSE) - Kirtland Airforce B Jobs
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Clearance
Albuquerque, NM
L6 Lead
September 11th, 2026
Computer Systems Engineers/Architects
National Security
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Senior Systems Engineer - Onsite
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Collins Aerospace
Seminole, FL
L6 Lead
September 9th, 2026
Computer Systems Engineers/Architects
National Security
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Principal Systems Engineer - Secure Systems (Active Clearance)
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Collins Aerospace
Fairborn, OH
L6 Lead
September 6th, 2026
Computer Systems Engineers/Architects
National Security
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MDS Systems Test Engineer
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Leidos
Mt Rainier, MD
L6 Lead
September 8th, 2026
Computer Systems Engineers/Architects
National Security
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Onsite Systems Engineer - Secret DoD Clearance
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RTX
Marlborough, NY
L4 Mid
September 9th, 2026
Computer Systems Engineers/Architects
National Security
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Cleared Systems Engineer - c-UAS & Army Programs
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CACI International
Fort Belvoir, VA
L6 Lead
September 3rd, 2026
Computer Systems Engineers/Architects
National Security
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Senior Thread Engineer
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Lockheed Martin
Jessup, MD
L6 Lead
September 4th, 2026
Computer Systems Engineers/Architects
National Security
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Systems Engineering Field Tech Support Stf - E4
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Lockheed Martin
Arlington, VA
L5 Senior
September 4th, 2026
Computer Systems Engineers/Architects
National Security
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Engineer Systems 5
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HII
Omaha, NE
L6 Lead
September 4th, 2026
Computer Systems Engineers/Architects
National Security
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Agile Video Systems Engineer with Security Clearance
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Nextech Solutions
Henrico, VA
L6 Lead
September 6th, 2026
Computer Systems Engineers/Architects
National Security
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COMSEC Engineer Jobs
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ClearanceJobs
Arlington, VA
L6 Lead
September 11th, 2026
Computer Systems Engineers/Architects
National Security
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System Engineer
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Torentify
Los Angeles, CA
L6 Lead
September 16th, 2026
Computer Systems Engineers/Architects
National Security
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Principal Nuclear Detection Systems Engineer Jobs
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Clearance
El Segundo, CA
L6 Lead
September 11th, 2026
Computer Systems Engineers/Architects
National Security
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Systems Engineer (IP)
APPLY
National Guard Employment Network
Dahlgren, VA
L5 Senior
September 13th, 2026
Computer Systems Engineers/Architects
National Security
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Senior Principal Systems Engineer - RDC Warfighter Support Team Jobs
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Clearance
Colorado Springs, CO
L6 Lead
September 14th, 2026
Computer Systems Engineers/Architects
National Security
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Network Engineer Sr Stf - E5 Jobs
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Clearance
Fayetteville, NC
L5 Senior
September 14th, 2026
Computer Systems Engineers/Architects
National Security
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C5ISR Systems Engineer - (2384)
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Prescient Edge
Tarpon Springs, FL
L5 Senior
September 14th, 2026
Computer Systems Engineers/Architects
National Security
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Sentinel - Sr. Staff Systems Engineer
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Socket
Salt Lake City, UT
L6 Lead
September 19th, 2026
Computer Systems Engineers/Architects
National Security
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Senior Systems Engineer - RF & Multi-Domain Ops Lead
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Odyssey Systems
Tampa, FL
L6 Lead
September 3rd, 2026
Computer Systems Engineers/Architects
National Security
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Principal Embedded System Security Engineer (Onsite - Marlborough, MA) Secret Clearance Required
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Raytheon
East Boston, MA
L6 Lead
September 13th, 2026
Computer Systems Engineers/Architects
National Security
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Sr Advanced Systems Engineer NC3 Programs
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General Dynamics Mission Systems
New Bedford, MA
L6 Lead
September 15th, 2026
Computer Systems Engineers/Architects
National Security
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Simulation Systems Engineer - Image Generation - 29526
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HII Mission Technologies Division
Nellis, WV
L5 Senior
September 15th, 2026
Computer Systems Engineers/Architects
National Security
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Systems Engineer SME
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Modern Technology Solutions
Alexandria, VA
L6 Lead
September 15th, 2026
Computer Systems Engineers/Architects
National Security
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Systems Engineer Stf - E4 (System Safety)
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Lockheed Martin
Dallas, TX
L6 Lead
September 22nd, 2026
Computer Systems Engineers/Architects
National Security
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Systems Engineer
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Ignite Digital Services
Alexandria, VA
L6 Lead
September 15th, 2026
Computer Systems Engineers/Architects
National Security
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SIGINT Systems Engineer
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Science Applications International
Aurora, CO
L6 Lead
September 3rd, 2026
Computer Systems Engineers/Architects
National Security
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Datalink Engineer
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Booz Allen Hamilton
Leonardtown, MD
L5 Senior
September 15th, 2026
Computer Systems Engineers/Architects
National Security
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Systems Engineer 2 - 23836 (FS Poly Required)
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HII Mission Technologies Division
Hyattsville, MD
L6 Lead
September 15th, 2026
Computer Systems Engineers/Architects
National Security
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Systems Engineer, Principal - TS
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DCS
Somerville, MA
L6 Lead
September 5th, 2026
Computer Systems Engineers/Architects
National Security
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Senior Systems Safety Engineer
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Odyssey Systems Consulting Group
Fort Walton Beach, FL
L6 Lead
September 15th, 2026
Computer Systems Engineers/Architects
National Security
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Systems Engineer 3 - 23837 (FS Poly Required)
APPLY
HII Mission Technologies Division
Hyattsville, MD
L6 Lead
September 15th, 2026
Computer Systems Engineers/Architects
National Security
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Secure Data/Voice Solutions Architect
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General Dynamics Mission Systems
Quincy, MA
L6 Lead
September 15th, 2026
Computer Systems Engineers/Architects
National Security
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NC3 Enterprise and Nuclear Systems Integration Engineer
APPLY
Booz Allen Hamilton
Hanscom Air Force Base, MA
L6 Lead
September 23rd, 2026
Computer Systems Engineers/Architects
National Security
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SLCM-N - Sr Principal Systems Engineer
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Progeny Systems
Pittsfield, MA
L6 Lead
September 17th, 2026
Computer Systems Engineers/Architects
National Security
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Senior Principal Systems Engineer
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BAE Systems
Hill Air Force Base, UT
L6 Lead
September 19th, 2026
Computer Systems Engineers/Architects
National Security
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Security Engineer Advanced
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System High
Colorado Springs, CO
L5 Senior
September 11th, 2026
Computer Systems Engineers/Architects
National Security
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Systems Interoperability and Integration Engineer - Active Top Secret Clearance
APPLY
MDA Edge
Bedford, MA
L6 Lead
September 14th, 2026
Computer Systems Engineers/Architects
National Security
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Systems Engineer I (Onsite)
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Rtx Raytheon
El Segundo, CA
L4 Mid
September 23rd, 2026
Computer Systems Engineers/Architects
National Security
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