JOBSEARCHER
OCCUPATIONS
INDUSTRIES
LOCATIONS
COMPANIES
SENIORITY
EXPLORE
SIGN IN
KEYWORDS
LOCATIONS
EXACT
NEARBY
Advanced search
SEARCH
10,000+
"validation engineer"
jobs
in
National Security
in last 30 days
Show all >
Save
9,315
"validation engineer"
jobs
in
National Security
in last 30 days
Show all >
Save
Filter
<
Date
Last 30 days
Sr Mission Engineering Analyst
APPLY
Leidos
Reston, VA
L6 Lead
October 2nd, 2026
Aerospace Engineers
National Security
Show all >
Senior Electrical Engineer
APPLY
Serco
Ellsworth Air Force Base, SD
L5 Senior
October 2nd, 2026
Electrical Engineers
National Security
Show all >
Electrical Engineer
APPLY
SAI
Crane, TX
L5 Senior
October 2nd, 2026
Electrical Engineers
National Security
Show all >
Integrated Product Support Intern (Summer 2027)
APPLY
Sierra Nevada Company
Hagerstown, MD
L1 Intern
September 21st, 2026
Aerospace Engineering and Operations Technologists and Technicians
National Security
Show all >
Kuwait-Qatar Execution Chief Engineer (Onsite)
APPLY
Raytheon
North Chelmsford, MA
L7 Manager
October 2nd, 2026
Architectural and Engineering Managers
National Security
Show all >
DoD SkillBridge Internship - Associate Project Manager
APPLY
Vets2pm
Panama City, FL
L1 Intern
October 2nd, 2026
Project Management Specialists
National Security
Show all >
Master Scheduler
APPLY
KBR
Honolulu, HI
L5 Senior
September 16th, 2026
Project Management Specialists
National Security
Show all >
Test Engineer - SWS Test Admin
APPLY
Generaldynamicselectricboat
Groton, CT
L5 Senior
September 18th, 2026
Aerospace Engineering and Operations Technologists and Technicians
National Security
Show all >
Senior DSP & SIGINT Engineer for Defense Tech
APPLY
Caci
Sterling, IL
L5 Senior
September 9th, 2026
Electronics Engineers, Except Computer
National Security
Show all >
Testing Systems Engineering
APPLY
Fibertek
Fort Belvoir, VA
L6 Lead
September 19th, 2026
Architectural and Engineering Managers
National Security
Show all >
Systems Engineer, Senior - PR
APPLY
P E Systems Va
Brooklyn, NY
L6 Lead
September 19th, 2026
Engineers, All Other
National Security
Show all >
Mechanical Engineer
APPLY
Inuplands
Crane, IN
L6 Lead
September 19th, 2026
Mechanical Engineers
National Security
Show all >
DoD Acquisition Mechanical Engineer - Tribology & Systems
APPLY
Tribonet
Salt Lake City, UT
L6 Lead
September 19th, 2026
Mechanical Engineers
National Security
Show all >
Senior Systems Engineer Electronic Warfare
APPLY
Anduril Industries
Costa Mesa, CA
L6 Lead
September 23rd, 2026
Electronics Engineers, Except Computer
National Security
Show all >
Senior Mechanical Engineer – Mission-Critical Facilities
APPLY
Via Logic
Reston, VA
L6 Lead
September 23rd, 2026
Mechanical Engineers
National Security
Show all >
Secure Facilities Advisor - Facility Mechanical Engineer
APPLY
Cornerstone Signals Cyber Technologies
Bellefontaine, OH
L5 Senior
September 20th, 2026
Mechanical Engineers
National Security
Show all >
Crane Site Lead / Senior Technical Lead
APPLY
Iron Will Ventures
Crane, TX
L7 Manager
September 23rd, 2026
Information Technology Project Managers
National Security
Show all >
Counter-Umanned System (CUxS) System Engineering and Acquisitions Advisor
APPLY
Zero Point
Madison, FL
L6 Lead
September 26th, 2026
Engineers, All Other
National Security
Show all >
Field Operations & Mission Execution Lead
APPLY
Chaos Industries
El Segundo, CA
L7 Manager
September 24th, 2026
General and Operations Managers
National Security
Show all >
Contracts Director – National Security & Government
APPLY
Adams Communication Engineering Technology Acet
Havelock, NC
L7 Manager
September 18th, 2026
Construction Managers
National Security
Show all >
Hypersonics Systems Engineer (Navy Yard) Jobs
APPLY
Clearance
Andrews Air Force Base, MD
L5 Senior
September 7th, 2026
Aerospace Engineers
National Security
Show all >
Specialty Systems Engineer
APPLY
Leidos
El Cajon, CA
L6 Lead
September 6th, 2026
Engineers, All Other
National Security
Show all >
Hypersonics Systems Engineer (Navy Yard)
APPLY
Systems Planning Analysis
Springfield, VA
L6 Lead
September 8th, 2026
Aerospace Engineers
National Security
Show all >
Top-Secret Cleared Staff Software Engineer & Lead
APPLY
Relha
Dayton, OH
L6 Lead
September 8th, 2026
Software Developers
National Security
Show all >
Senior Modeling & Simulation Engineer (SME)
APPLY
Arena Technologies
Colorado Springs, CO
L6 Lead
September 9th, 2026
Aerospace Engineers
National Security
Show all >
Defense Systems Design & Requirements Lead
APPLY
Ara Brand
Albuquerque, NM
L6 Lead
September 9th, 2026
Architectural and Engineering Managers
National Security
Show all >
DSP Engineer SIGINT & ML, TS Clearance
APPLY
CACI International
Sterling, IL
L6 Lead
September 9th, 2026
Electronics Engineers, Except Computer
National Security
Show all >
Missile Defense Systems Engineer (Secret Clearance)
APPLY
RTX
Huntsville, AL
L6 Lead
September 9th, 2026
Computer Systems Engineers/Architects
National Security
Show all >
Mechanical Engineer - Facilities & Utilities Design
APPLY
United States Army Installation Management Command
Louisiana, MO
L6 Lead
September 9th, 2026
Mechanical Engineers
National Security
Show all >
Senior Systems Engineer & MBSE Specialist
APPLY
Systems Planning Analysis
Colorado Springs, CO
L5 Senior
September 9th, 2026
Aerospace Engineers
National Security
Show all >
Senior Systems Engineer & MBSE Specialist
APPLY
Arena Technologies
Brooklyn, NY
L6 Lead
September 9th, 2026
Aerospace Engineers
National Security
Show all >
BMD Radar Systems Controller - Training & Ops Lead
APPLY
Thor Solutions
San Diego, CA
L6 Lead
September 9th, 2026
First-Line Supervisors of All Other Tactical Operations Specialists
National Security
Show all >
Ballistic Missile Defense Radar System Controller (Navy ATG Battle Lab)
APPLY
Thor Solutions
Escondido, CA
L5 Senior
September 9th, 2026
Military Officer Special and Tactical Operations Leaders, All Other
National Security
Show all >
Junior Distribution Systems Engineer Onsite in Hawaii
APPLY
General Dynamics Information Technology
Aiea, HI
L4 Mid
September 9th, 2026
Computer Systems Engineers/Architects
National Security
Show all >
SWRMC Submarine Auxiliaries Engineering Technician VI
APPLY
Amentum
El Cajon, CA
L5 Senior
September 5th, 2026
Installation, Maintenance, and Repair Workers, All Other
National Security
Show all >
Chief Engineer
APPLY
Astrion
Hobart, WA
L6 Lead
September 8th, 2026
Ship Engineers
National Security
Show all >
INTERDISCIPLINARY ENGINEER
APPLY
Us Pacific Fleet
Almont, MI
L5 Senior
September 8th, 2026
Engineers, All Other
National Security
Show all >
Senior Hypersonics Systems Engineer (Navy Yard)
APPLY
Systems Planning Analysis
Springfield, IL
L5 Senior
September 8th, 2026
Aerospace Engineers
National Security
Show all >
SUPERVISORY ENGINEER/ SCIENTIST or MANAGER
APPLY
Naval Sea Systems Command
Parkersburg, WV
L7 Manager
September 8th, 2026
Architectural and Engineering Managers
National Security
Show all >
Lead Systems Engineer
APPLY
Systems Planning Analysis
Fort Hunt, VA
L6 Lead
September 8th, 2026
Architectural and Engineering Managers
National Security
Show all >
1
16
17
18
100