JOBSEARCHER
OCCUPATIONS
INDUSTRIES
LOCATIONS
COMPANIES
SENIORITY
EXPLORE
SIGN IN
KEYWORDS
LOCATIONS
EXACT
NEARBY
Advanced search
SEARCH
10,000+
"linux engineer"
jobs
in
National Security
in last 30 days
Show all >
Save
10,000+
"linux engineer"
jobs
in
National Security
in last 30 days
Show all >
Save
Filter
<
Date
Last 30 days
Senior IT Lead, Secure Infrastructure & Cyber Defense
APPLY
Huntington Ingalls Industries
Dayton, OH
L7 Manager
August 14th, 2026
Computer and Information Systems Managers
National Security
Show all >
Sr. Principal Systems Safety Engineer MIL-STD-882E - 15028
APPLY
Northrop Grumman
Salt Lake City, UT
L6 Lead
August 17th, 2026
Health and Safety Engineers, Except Mining Safety Engineers and Inspectors
National Security
Show all >
Hardware Engineer - Tonopah
APPLY
Arcata
Las Vegas, NV
L6 Lead
August 17th, 2026
Electronics Engineers, Except Computer
National Security
Show all >
Air Force Interoperability Council Support
APPLY
SAIC
Andrews Air Force Base, MD
L6 Lead
August 17th, 2026
Executive Secretaries and Executive Administrative Assistants
National Security
Show all >
IT System Administrator/
APPLY
Quick Services Qsl
Patterson, OH
L5 Senior
August 14th, 2026
Network and Computer Systems Administrators
National Security
Show all >
Systems Administrator Secret Clearance & ALIS Specialist
APPLY
Lockheed Martin
Orlando, FL
L5 Senior
August 8th, 2026
Network and Computer Systems Administrators
National Security
Show all >
Senior Network Engineer - Tier 3 (TS/SCI w/ Poly)
APPLY
CACI International
Sterling, CO
L5 Senior
August 8th, 2026
Computer Network Architects
National Security
Show all >
Mission-Critical Systems Support Lead (TS/SCI)
APPLY
American Systems
Denver, CO
L4 Mid
August 8th, 2026
Network and Computer Systems Administrators
National Security
Show all >
Senior DoD Network Engineer (Secret Clearance)
APPLY
Sigma Defense Systems
San Diego, CA
L5 Senior
August 8th, 2026
Computer Network Architects
National Security
Show all >
Senior Active Directory Admin - DoD TS/SCI Required
APPLY
Peraton
Tampa, FL
L5 Senior
August 8th, 2026
Network and Computer Systems Administrators
National Security
Show all >
Lead DS CEL Engineer - Onsite in Hawaii | Secret Clearance
APPLY
General Dynamics Information Technology
Wake Village, TX
L4 Mid
August 7th, 2026
Telecommunications Engineering Specialists
National Security
Show all >
VTC Systems Administrator Onsite at Quantico (Enterprise IT)
APPLY
General Dynamics
Quantico, VA
L5 Senior
August 4th, 2026
Network and Computer Systems Administrators
National Security
Show all >
Senior Systems Engineer III - Defense & Aerospace
APPLY
Voyager Space
Reno, NV
L6 Lead
August 11th, 2026
Project Management Specialists
National Security
Show all >
Senior DoD Exercise Networks Engineer
APPLY
SAIC
Nevada, IA
L5 Senior
August 1st, 2026
Computer Network Architects
National Security
Show all >
IT CYBERSECURITY SPECIALIST (SYSANALYSIS/INFOSEC)
APPLY
Department Of Defense
Indianapolis, IN
L6 Lead
August 18th, 2026
Information Security Analysts
National Security
Show all >
Lead RMF/ATO Security Engineer for SAOC
APPLY
Sierra Nevada
Englewood, CO
L6 Lead
August 9th, 2026
Information Security Engineers
National Security
Show all >
NMCC Systems Admin
APPLY
Kaylatek
Arlington, VA
L5 Senior
August 8th, 2026
Network and Computer Systems Administrators
National Security
Show all >
IT Specialist (Systems Administration/Customer Support).
APPLY
Socket
Ozark, AL
L5 Senior
August 9th, 2026
Network and Computer Systems Administrators
National Security
Show all >
Domino Systems Administrator - Lotus Domino (DoD, Hawaii)
APPLY
Trace Systems
Wahiawa, HI
L4 Mid
August 9th, 2026
Network and Computer Systems Administrators
National Security
Show all >
Global Systems Administrator: Mission-Critical IT
APPLY
Trace Systems
Goldsboro, NC
L5 Senior
August 9th, 2026
Network and Computer Systems Administrators
National Security
Show all >
Senior Geospatial Systems Administrator - Enterprise GIS
APPLY
Akima
Sumter, SC
L6 Lead
August 9th, 2026
Geographic Information Systems Technologists and Technicians
National Security
Show all >
C4ISR AC&S Tactical Datalinks Portfolio Chief Engineer
APPLY
BAE Systems
Wayne, NJ
L7 Manager
August 9th, 2026
Architectural and Engineering Managers
National Security
Show all >
Senior IT Specialist, Data & Systems Architect
APPLY
Socket
Brooklyn, NY
L6 Lead
August 9th, 2026
Computer Systems Analysts
National Security
Show all >
IT Specialist - Albany, GA - Active Secret Clearance is Required!
APPLY
Day Zimmermann
Albany, GA
L5 Senior
August 9th, 2026
Network and Computer Systems Administrators
National Security
Show all >
Communications/Architecture Support Specialist
APPLY
ASRC Federal
Sierra Vista, AZ
L5 Senior
August 9th, 2026
Command and Control Center Specialists
National Security
Show all >
Navy Field Engineer/Technical Support Specialist
APPLY
Bna
San Diego, CA
L5 Senior
August 8th, 2026
Network and Computer Systems Administrators
National Security
Show all >
Senior DoD Network Engineer: L3 Routing & Security
APPLY
Sms
Andrews Air Force Base, MD
L5 Senior
August 10th, 2026
Network and Computer Systems Administrators
National Security
Show all >
Senior Principal CORE Systems Engineer - Secret Clearance
APPLY
Northrop Grumman
Baltimore, MD
L6 Lead
August 8th, 2026
Aerospace Engineers
National Security
Show all >
Financial System Administrator (Mountain Home AFB).
APPLY
Mano Lani
Mountain Home, ID
L5 Senior
August 10th, 2026
Network and Computer Systems Administrators
National Security
Show all >
IT CYBERSECURITY SPECIALIST (PLCYPLN/INFOSEC)
APPLY
Us Defense Information Systems Agency
Fort Meade, MD
L6 Lead
July 19th, 2026
Information Security Analysts
National Security
Show all >
Configuration Management
APPLY
Summit Technologies
Hill AFB, UT
L5 Senior
July 19th, 2026
Computer and Information Systems Managers
National Security
Show all >
Network System Administrator III
APPLY
Targeted Solutions
Washington, DC
L6 Lead
July 19th, 2026
Network and Computer Systems Administrators
National Security
Show all >
Systems Integrator
APPLY
Booz Allen Hamilton
Tampa, FL
L6 Lead
July 20th, 2026
Training and Development Specialists
National Security
Show all >
Chef-fe du domaine de direction Technologies et capacités
APPLY
Swiss Federal Administration
Prosser, WA
L7 Manager
July 19th, 2026
Computer and Information Systems Managers
National Security
Show all >
Senior Site Lead Engineer
APPLY
CACI International
Centerville, MA
L6 Lead
July 20th, 2026
Computer Network Architects
National Security
Show all >
System Administrator
APPLY
Pingwind
Harvard, MA
L4 Mid
August 8th, 2026
Network and Computer Systems Administrators
National Security
Show all >
Mission-Critical AI Engineer Agentic ML & LLMs
APPLY
Phase2 Technology
O Fallon, MO
L6 Lead
August 7th, 2026
Software Developers
National Security
Show all >
Mid DoD IT Systems & Applications Specialist
APPLY
Sellers Associates
Port Hueneme, CA
L4 Mid
August 9th, 2026
Computer Systems Analysts
National Security
Show all >
ITSPEC (SYSADMIN) (TITLE 32)
APPLY
U.S. Government
Panama City, FL
L6 Lead
August 9th, 2026
Network and Computer Systems Administrators
National Security
Show all >
Secure Communications Engineer w/TS/SCI Clearance
APPLY
TekSynap
Andrews Air Force Base, MD
L5 Senior
August 9th, 2026
Telecommunications Engineering Specialists
National Security
Show all >
1
87
88
89
100