ClearanceJobs
  • Candidates
  • Employers
  • Hiring Companies
  • News & Career Advice
  • Login
  • Register now

Engineering - Mechanical Jobs

Engineering - Mechanical

Viewing 1 - 20 of 1,288

Engineering - Mechanical Jobs requiring security clearance

Show:
Sort by:

Lead Mechanical Engineer, PE

New
V2X
Apply today! Be one of the first candidates to apply for maximum exposure.
Springfield, VA(On-Site/Office)
Posted today
TS/SCI
Not Specified

Job Description OverviewWorking across the globe, V2X builds smart solutions designed to integrate physical and digital infrastructure from base to battlefield. We bring 120 years of successful missio...

user avatar

Mechanical Engineer-Precision Machining & Diamond Turning

New
Lawrence Livermore National Laboratory
Apply today! Be one of the first candidates to apply for maximum exposure.
Livermore, CA(On-Site/Office)
Posted today
DoE Q or L
Not Specified

Company Description Join us and make YOUR mark on the World!Are you interested in joining some of the brightest talent in the world to strengthen the United States' security? Come join Lawrence Liverm...

user avatar

AV Design Engineer 3 - Fayetteville, NC

New
M.C. Dean
Apply today! Be one of the first candidates to apply for maximum exposure.
Fayetteville, NC(On-Site/Office)
Posted today
Top Secret
Not Specified

OverviewAbout M.C. DeanM.C. Dean is Building Intelligence. We design, build, operate, and maintain cyber-physical solutions for the nation's most mission-critical facilities, secure environments, comp...

user avatar

6H6HI3-Manufacturing Engineer 3 - 66R-Assembly and Installation

New
Indotronix International Corp
Apply today! Be one of the first candidates to apply for maximum exposure.
San Antonio, TX(On-Site/Office)
Posted today
Secret
Not Specified

Shift: Variable, 5:00 AM to 11:30 PM Primarily 1st shift, Must be available to work 2nd shift as needed Clearance: Secret (post start) Bachelor's degree in EngineeringClient is seeking highly motivat...

user avatar

Mechanical Engineer

New
Leidos
Apply today! Be one of the first candidates to apply for maximum exposure.
Springfield, VA(On-Site/Office)
Posted today
Top Secret
Polygraph

R-00168929Description Leidos – Multi-Domain Solutions (MDS) Division Position: Junior Level Mechanical EngineerLeidos and its Multi-Domain Solutions (MDS) division are seeking a highly motivated...

user avatar

Mechanical Engineer - Design

New
Space Dynamics Laboratory
Apply today! Be one of the first candidates to apply for maximum exposure.
North Logan, UT(On-Site/Office)
Posted today
Secret
Not Specified

Job ID: 5951BDate Posted: January 20, 2026 The Space Dynamics Laboratory (SDL) is seeking a Mechanical Engineer to design, analyze, manufacture, assemble, and test flight hardware and ground support...

user avatar

Submarine Systems Quality Assurance Specialist

New
Noblis
Apply today! Be one of the first candidates to apply for maximum exposure.
Philadelphia, PA(Off-Site/Hybrid)
Posted today
Secret
Not Specified

ResponsibilitiesNoblis MSD's mission is to support the Naval Sea Systems Command (NAVSEA) and, Naval Surface Warfare Center (NSWCPD) and their missions' to enable research, development, test and evalu...

user avatar

Mechanical Engineer Associate

New
SAIC
Apply today! Be one of the first candidates to apply for maximum exposure.
Crane, IN(On-Site/Office)
Posted today
Secret
Not Specified

Description SAIC is looking for a Mechanical Engineer Associate to support the US Navy in Crane, IN. JOB DESCRIPTION: Provide test and evaluation support for Abusive and non-abusive battery tests....

user avatar

Principal Design Engineer – Missile Nozzle & Propulsion

New
Enterprise Consulting Services DBA Enterprise Peak
Apply today! Be one of the first candidates to apply for maximum exposure.
Lincoln, NE(Off-Site/Hybrid)
Posted today
5+ yrs exp
Unspecified

OUR PROJECT The Principal Design Engineer will support a leading aerospace and defense organization in the design and development of solid rocket motor nozzles for defense missile systems. This initia...

user avatar

Senior Specialist, Manufacturing Engineer

New
L3Harris Technologies
Apply today! Be one of the first candidates to apply for maximum exposure.
Orange, VA(On-Site/Office)
Posted today
Secret
Not Specified

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest fo...

user avatar

Specialist Mechanical Engineer

New
L3Harris Technologies
Apply today! Be one of the first candidates to apply for maximum exposure.
Northampton, MA(On-Site/Office)
Posted today
Secret
Not Specified

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest fo...

user avatar

Manufacturing Engineering Intern (Rochester. NY)

New
L3Harris Technologies
Apply today! Be one of the first candidates to apply for maximum exposure.
Rochester, NY(On-Site/Office)
Posted today
Secret
Not Specified

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest fo...

user avatar

Phantom Works Manufacturing Engineer (Composite Fabrication)

New
Boeing
Apply today! Be one of the first candidates to apply for maximum exposure.
Hazelwood, MO(On-Site/Office)
Posted today
Secret
Not Specified

Job DescriptionAt Boeing, we innovate and collaborate to make the world a better place. We're committed to fostering an environment for every teammate that's welcoming, respectful and inclusive, with ...

user avatar

Site Reliability Engineer - Configuration

New
Zachary Piper Solutions, LLC
Apply today! Be one of the first candidates to apply for maximum exposure.
Washington, DC(On-Site/Office)
Posted today
Top Secret
Not Specified

Zachary Piper Solutions is seeking a Site Reliability Engineer - Configuration. This position is in support of a contract with the Department of Energy and the National Nuclear Security Agency OCIO. ...

user avatar

Mechanical Engineer - Loads and Dynamics

New
Lockheed Martin
Apply today! Be one of the first candidates to apply for maximum exposure.
Littleton, CO(On-Site/Office)
Posted today
TS/SCI
Polygraph

Job Number 715138BR Description:Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities...

user avatar

Mechanical Ground Support Equipment Engineer

New
Lockheed Martin
Apply today! Be one of the first candidates to apply for maximum exposure.
Huntsville, AL(On-Site/Office)
Posted today
Secret
Not Specified

Job Number 715275BR Description:Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities...

user avatar

Mechanical Ground Support Equipment Engineer

New
Lockheed Martin
Apply today! Be one of the first candidates to apply for maximum exposure.
Huntsville, AL(On-Site/Office)
Posted today
Secret
Not Specified

Job Number 715266BR Description:Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities...

user avatar

Lead Mechanical Engineer

New
Lockheed Martin
Apply today! Be one of the first candidates to apply for maximum exposure.
Moorestown, NJ(On-Site/Office)
Posted today
Secret
Not Specified

Job Number 715505BR Description:What We're DoingAt Lockheed Martin, we are dedicated to advancing the capabilities of the Aegis Weapon System through comprehensive integration, development, and testi...

user avatar

Aeronautical Engineer (Airframe Design) - Early Career

New
Lockheed Martin
Apply today! Be one of the first candidates to apply for maximum exposure.
Marietta, GA(On-Site/Office)
Posted today
Secret
Not Specified

Job Number 714480BR Description:By bringing together people that use their passion for purposeful innovation, at Lockheed Martin we keep people safe and solve the world's most complex challenges. Our...

user avatar

Quality Engineer Asc

New
Lockheed Martin
Apply today! Be one of the first candidates to apply for maximum exposure.
Liverpool, NY(On-Site/Office)
Posted today
Secret
Not Specified

Job Number 715454BR Description:WHO WE AREWe provide the resources, inspiration, and focus - if you have the resourcefulness and perseverance to work hard, then we want to create a better tomorrow wi...

user avatar
ClearanceJobs
  • About Us
  • Support
  • Browse Jobs
  • Security Clearance FAQs
  • AgileATS
  • FedWork
  • Blog
  • Privacy Policy
  • Terms of Service
  • My Privacy Rights
  • Pay My Bill
  • Contact Us
  • EULA
Download on the App StoreGet it on Google Play

© 2026 ClearanceJobs - All rights reserved. ClearanceJobs is a DHI service.