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10,000+
"validation engineer"
jobs
in
National Security
in last 30 days
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9,000
"validation engineer"
jobs
in
National Security
in last 30 days
Show all >
Save
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Date
Last 30 days
Lead Systems Engineer - Maritime Scalable Effects
APPLY
Systems Planning Analysis
Dahlgren, VA
L6 Lead
August 31st, 2026
Architectural and Engineering Managers
Engineering Services
Show all >
Lead Thermal/Stress Analyst
APPLY
Koitecc Solutions
Brooklyn, NY
L6 Lead
September 9th, 2026
Mechanical Engineers
Engineering Services
Show all >
Senior Analyst
APPLY
Amro Fabricating
Mukilteo, WA
L5 Senior
September 23rd, 2026
Mechanical Engineers
Engineering Services
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Regional Strike Programs - Systems Engineering (Fall Co-op)
APPLY
Progeny Systems
Pittsfield, MA
L1 Intern
September 13th, 2026
Engineers, All Other
Engineering Services
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Senior Stress Analyst - Structural Dynamics Leader
APPLY
Leidos
Huntsville, AL
L6 Lead
September 29th, 2026
Mechanical Engineers
Engineering Services
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Manager, Engineering Operations
APPLY
KBR
Atlantic Beach, FL
L7 Manager
September 25th, 2026
General and Operations Managers
Engineering Services
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Operational Technical Engineer
APPLY
Empower Ai
Myrtle Point, OR
L6 Lead
September 28th, 2026
Computer Systems Engineers/Architects
Engineering Services
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Contractor Senior Technical Director
APPLY
Apogee
Tampa, FL
L7 Manager
September 10th, 2026
Project Management Specialists
Engineering Services
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Systems Engineer - EW & c-UAS Architecture
APPLY
First Command Financial Services
Newport, RI
L6 Lead
September 23rd, 2026
Computer Systems Engineers/Architects
Engineering Services
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Staff Systems Engineer - DoD Missile & Flight Systems
APPLY
Riseme
Huntsville, TN
L6 Lead
September 29th, 2026
Computer Systems Engineers/Architects
Engineering Services
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Test Readiness Program Representative Sr/Specialist/Principal
APPLY
Generaldynamicselectricboat
Groton, CT
L6 Lead
September 28th, 2026
Architectural and Engineering Managers
Engineering Services
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Civil Engineer - Mid with Security Clearance
APPLY
Galapagos Federal Systems
Kahului, HI
L6 Lead
September 28th, 2026
Civil Engineers
Engineering Services
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SIT Lead, Hydrodynamics & Ship Control for SSN(X)
APPLY
Systems Planning Analysis
Andrews Air Force Base, MD
L7 Manager
September 24th, 2026
Project Management Specialists
Engineering Services
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Dev Sec Engineering Mgr - L5
APPLY
Lockheed Martin
Valley Forge, PA
L7 Manager
September 19th, 2026
Architectural and Engineering Managers
Engineering Services
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Project Director
APPLY
WSP in U.S.
East Providence, RI
L7 Manager
September 10th, 2026
Project Management Specialists
Engineering Services
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Field Materials Engineering Technician (SkillBridge)
APPLY
Smeinc
Raleigh, NC
L3 Junior
September 29th, 2026
Civil Engineering Technologists and Technicians
Engineering Services
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Naval HM&E Systems Engineer II (Secret Clearance)
APPLY
Serco
Crystal City, MO
L5 Senior
September 29th, 2026
Ship Engineers
Engineering Services
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Mechanical Design Engineer # 26-24161
APPLY
U.S. Tech Solutions
Maple Grove, MN
L5 Senior
September 25th, 2026
Mechanical Engineers
Engineering Services
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Director of Engineering
APPLY
Yulista Calista
Huntsville, AL
L7 Manager
September 11th, 2026
Architectural and Engineering Managers
Engineering Services
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Lead Systems Engineer, Data-Driven Performance
APPLY
Naval Air Warfare Center Training Systems Division Nawctsd
Ridgecrest, CA
L6 Lead
September 2nd, 2026
Computer Systems Engineers/Architects
Engineering Services
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Senior Mechanical Engineer Part-Time RDT&E Testing
APPLY
DCS
Ridgecrest, CA
L5 Senior
September 2nd, 2026
Mechanical Engineers
Engineering Services
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Facilities/Project Engineer - Clearance Required
APPLY
LMI Consulting
Arlington, VA
L6 Lead
September 1st, 2026
Architectural and Engineering Managers
Engineering Services
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Lead Systems Engineer, Aerospace Defense & Embedded Systems
APPLY
Aeronix Technologies Group
Florida, NY
L6 Lead
September 2nd, 2026
Computer Systems Engineers/Architects
Engineering Services
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RF System Engineer (OCONUS and CONUS travel opportunities)
APPLY
Optimus Technology
Fort Meade, MD
L6 Lead
September 2nd, 2026
Computer Systems Engineers/Architects
Engineering Services
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Junior CAD Engineer - Naval Ship Installations
APPLY
Leidos
Chesapeake, VA
L4 Mid
September 2nd, 2026
Drafters, All Other
Engineering Services
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Mechanical Engineer - Field Test & Fixture Design
APPLY
Trax International
Phoenix, AZ
L6 Lead
September 2nd, 2026
Mechanical Engineers
Engineering Services
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Senior Systems Engineer, SLBM Fire Control (Dahlgren)
APPLY
Amentum
Virginia, IL
L6 Lead
September 2nd, 2026
Computer Systems Engineers/Architects
Engineering Services
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Pre-Award: MXM- Electrical / Electronics Engineer IV
APPLY
Barbaricum
Crane, TX
L5 Senior
September 2nd, 2026
Electronics Engineers, Except Computer
Engineering Services
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CONUS AFCAP Program Manager
APPLY
Serco
Panama City, FL
L6 Lead
September 2nd, 2026
Project Management Specialists
Engineering Services
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AegisBased Defense Futures Senior Systems Engineer
APPLY
Modern Technology Solutions
Dahlgren, VA
L6 Lead
September 1st, 2026
Computer Systems Engineers/Architects
Engineering Services
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Packaging Engineering Supervisor - Nuclear Packaging Lead
APPLY
Y12 National Security Complex
Oak Ridge, TN
L6 Lead
September 2nd, 2026
Nuclear Engineers
Engineering Services
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Senior Mechanical Facility Engineer (TS/SCI)
APPLY
Bristolbayservices
Brooklyn, NY
L5 Senior
September 2nd, 2026
Mechanical Engineers
Engineering Services
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Senior Systems Engineer
APPLY
Kinsley Power Systems
Colorado Springs, CO
L6 Lead
September 2nd, 2026
Computer Systems Engineers/Architects
Engineering Services
Show all >
Senior MBSE Systems Engineer - Defense Programs
APPLY
Ultra Maritime Ems
Austin, TX
L5 Senior
September 2nd, 2026
Engineers, All Other
Engineering Services
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SIGINT Systems Engineer - TS/SCI + Poly | Flexible Hours
APPLY
Cymertek
Reston, VA
L5 Senior
September 2nd, 2026
Computer Systems Engineers/Architects
Engineering Services
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Senior MODSIM Systems Engineer: Model-Based Autonomy
APPLY
Ai Chopping Block
Costa Mesa, CA
L6 Lead
September 2nd, 2026
Aerospace Engineers
Engineering Services
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Journeyman Systems Engineer - DoD, MBSE & Airborne
APPLY
Kairos
Brooklyn, NY
L4 Mid
September 2nd, 2026
Aerospace Engineers
Engineering Services
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Systems Engineer Autonomy & Simulations (TS/Secret)
APPLY
Anduril Industries
Costa Mesa, CA
L6 Lead
September 2nd, 2026
Aerospace Engineers
Engineering Services
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Systems Engineer | TS/SCI Clearance | Mission-Critical
APPLY
CACI International
Colorado Springs, CO
L6 Lead
September 2nd, 2026
Computer Systems Engineers/Architects
Engineering Services
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Staff Engineering Design
APPLY
Northrop Grumman
Highland Beach, MD
L6 Lead
September 2nd, 2026
Mechanical Engineers
Engineering Services
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