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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
Member of Technical Staff – AI/LLM with Active Secret Clearance
APPLY
Tekpillar
Washington, DC
L5 Senior
September 22nd, 2026
Computer Systems Engineers/Architects
National Security
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Cyberspace Operations Analyst (Active Top Secret Clearance with SCI Eligibility)
APPLY
Akima
Augusta, GA
L5 Senior
September 12th, 2026
Computer Systems Engineers/Architects
National Security
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Senior Army Cloud Account Executive
APPLY
Amazon
Arlington, VA
L5 Senior
September 4th, 2026
Computer Systems Engineers/Architects
National Security
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Systems Engineer, Plans & Programming
APPLY
Us Space Systems Command
Kirtland Air Force Base, NM
L6 Lead
September 4th, 2026
Computer Systems Engineers/Architects
National Security
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Senior Mission Systems Integrator- C-sUAS
APPLY
Sherpa6
Alexandria, VA
L6 Lead
September 4th, 2026
Computer Systems Engineers/Architects
National Security
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Senior DoD Systems Engineer TS Clearance, Digital Engineering
APPLY
Abacus Technology
Oklahoma City, OK
L6 Lead
September 2nd, 2026
Computer Systems Engineers/Architects
National Security
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Counter-UAS Engineer
APPLY
Dronevet
Arlington, TX
L5 Senior
September 1st, 2026
Computer Systems Engineers/Architects
National Security
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Senior Systems Engineer, Secret Clearance, Space Defense
APPLY
Northrop Grumman
Colorado Springs, CO
L6 Lead
September 2nd, 2026
Computer Systems Engineers/Architects
National Security
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Systems Engineer - Secret Clearance (Level 2/3)
APPLY
Northrop Grumman
Brooklyn, NY
L6 Lead
September 2nd, 2026
Computer Systems Engineers/Architects
National Security
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Systems Engineer, Journeyman - Secret
APPLY
RPMGlobal
Bedford, MA
L5 Senior
September 2nd, 2026
Computer Systems Engineers/Architects
National Security
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Senior Systems Engineer
APPLY
Kihomac
Lincoln, MA
L6 Lead
September 2nd, 2026
Computer Systems Engineers/Architects
National Security
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Systems Engineer - Hypersonics & Defense (Hybrid)
APPLY
Apex Systems
Montana, WI
L6 Lead
September 2nd, 2026
Computer Systems Engineers/Architects
National Security
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Senior DoD Systems Engineer - Weapon Systems & Integration
APPLY
Aviation Systems Engineering Company
Ridgecrest, CA
L6 Lead
September 2nd, 2026
Computer Systems Engineers/Architects
National Security
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Senior Systems Engineer - DoD Weapon Systems (Secret)
APPLY
Asec
Ridgecrest, CA
L6 Lead
September 2nd, 2026
Computer Systems Engineers/Architects
National Security
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Senior Systems Safety Engineer - DoD, TS Clearance
APPLY
Torch Technologies
Valparaiso, FL
L6 Lead
September 2nd, 2026
Computer Systems Engineers/Architects
National Security
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Intern Systems Engineer- (Onsite)
APPLY
Prattwhitney
Denver, CO
L1 Intern
September 19th, 2026
Computer Systems Engineers/Architects
National Security
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TS/SCI Systems Maintainer & Integrator II - C4ISR
APPLY
Caci
Fort Belvoir, VA
L5 Senior
September 19th, 2026
Computer Systems Engineers/Architects
National Security
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Sr. Embedded Systems Security Engineer (Onsite - Largo, FL or Marlborough, MA) Secret clearance required
APPLY
Collins Aerospace
Seminole, FL
L6 Lead
September 19th, 2026
Computer Systems Engineers/Architects
National Security
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Integrated Research & Development for Enterprise Solutions (IRES) Task Order (TO) 8500 Incumbents
APPLY
Integration Innovation I3
Huntsville, AL
L6 Lead
September 19th, 2026
Computer Systems Engineers/Architects
National Security
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SIGINT Systems Administrator - Low-Band Journeyman
APPLY
CACI International
Los Angeles, CA
L5 Senior
September 15th, 2026
Computer Systems Engineers/Architects
National Security
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Protection Indications and Warning Systems Engineer 2025-G-332
APPLY
Intelligence Consulting Enterprise Solutions
McLean, VA
L7 Manager
September 15th, 2026
Computer Systems Engineers/Architects
National Security
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IT Specialist: JSE/DTTR Systems Admin (Security-Cleared)
APPLY
Air Force Materiel Command
Edwards, CA
L4 Mid
September 1st, 2026
Computer Systems Engineers/Architects
National Security
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Senior Systems Administrator, C2BMC (Secret)
APPLY
Northrop Grumman
Colorado Springs, CO
L5 Senior
September 1st, 2026
Computer Systems Engineers/Architects
National Security
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Hybrid Technology Solutions Engineer
APPLY
Sergeant At Arms Of United States Senate
Hyattsville, MD
L6 Lead
September 1st, 2026
Computer Systems Engineers/Architects
National Security
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Information Systems Security Officer, Senior Jobs
APPLY
ClearanceJobs
Colorado Springs, CO
L6 Lead
September 14th, 2026
Computer Systems Engineers/Architects
National Security
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Senior Principal Agentic AI Engineer (T06)
APPLY
V2X
Carmel, IN
L6 Lead
September 15th, 2026
Computer Systems Engineers/Architects
National Security
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TPS Systems Test Engineer Jobs
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Clearance
Washington, DC
L6 Lead
September 11th, 2026
Computer Systems Engineers/Architects
National Security
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DoW SkillBridge Internship - Sherpa 6
APPLY
ClearanceJobs
Spring Lake, NC
L1 Intern
September 3rd, 2026
Computer Systems Engineers/Architects
National Security
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Principal Cyber Systems Engineer (S)
APPLY
Relha
Hyattsville, MD
L6 Lead
September 2nd, 2026
Computer Systems Engineers/Architects
National Security
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Defense Simulation Engineer with Secret Clearance
APPLY
Client Solution Architects
Fort Smith, AR
L4 Mid
September 3rd, 2026
Computer Systems Engineers/Architects
National Security
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Senior Systems Engineer III - EW/COE DoD Systems
APPLY
Insight Global
Virginia Beach, VA
L6 Lead
September 3rd, 2026
Computer Systems Engineers/Architects
National Security
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CIWS Reliability Engineer (Job ID:4538)
APPLY
Valkyrieenterprises
Arlington, VA
L6 Lead
September 10th, 2026
Computer Systems Engineers/Architects
National Security
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Systems Engineer, Plans & Programming
APPLY
Department of the Air Force
Albuquerque, NM
L6 Lead
September 11th, 2026
Computer Systems Engineers/Architects
National Security
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(COMSEC) Key Management Infrastructure (KMI) Engineer Jobs
APPLY
ClearanceJobs
Bluemont, VA
L5 Senior
September 11th, 2026
Computer Systems Engineers/Architects
National Security
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Engineer Network II Jobs
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ClearanceJobs
Colorado Springs, CO
L5 Senior
September 11th, 2026
Computer Systems Engineers/Architects
National Security
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Sentinel - Principal/Sr. Principal Systems Engineer
APPLY
Northrop Grumman
Huntsville, AL
L6 Lead
September 4th, 2026
Computer Systems Engineers/Architects
National Security
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Senior DoD Systems Engineer: Ground Avionics & Data Links
APPLY
Abacus Technology
Shalimar, FL
L5 Senior
September 4th, 2026
Computer Systems Engineers/Architects
National Security
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System Security Engineer - Senior Jobs
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ClearanceJobs
Dayton, OH
L6 Lead
September 11th, 2026
Computer Systems Engineers/Architects
National Security
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Principal Cryptography Engineer Jobs
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ClearanceJobs
McLean, VA
L6 Lead
September 11th, 2026
Computer Systems Engineers/Architects
National Security
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Cybersecurity Mission Planner
APPLY
Its
Colorado Springs, CO
L7 Manager
September 11th, 2026
Computer Systems Engineers/Architects
National Security
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