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Senior Mechanical Engineer - Top Secret clearance Security Clearance

Job in King of Prussia, Montgomery County, Pennsylvania, 19406, USA
Listing for: Lockheed Martin
Full Time position
Listed on 2026-02-20
Job specializations:
  • Engineering
    Mechanical Engineer, Engineering Design & Technologists
Job Description & How to Apply Below
Position: Senior Mechanical Engineer - Top Secret clearance with Security Clearance
Job Number 713785

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, where we can do more - we can innovate, in-vest, inspire, and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve.

We're creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We're erasing boundaries and forming partnerships across industries and around the world. We're advancing spacecraft and the work-force to fuel the next generation. And we're reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you.

Lockheed Martin Space is seeking a Mechanical Engineer to join our team in King of Prussia, PA! As a mechanical engineer, you will:
- Design mechanical structures and hardware using 3D CAD modeling tools
- Create mechanical drawings and manage drawing lifecycle using data management software
- Assist with engineering test efforts
- Coordinate with other disciplines to ensure robust engineering design

Basic Qualifications:

- Active Top Secret clearance

- Experience with PTC Creo, or similar 3D CAD modeling software (e.g. Solidworks or NX)
- Experience creating, releasing, and/or managing mechanical drawing releases and revisions
- Familiar with geometric dimensioning and tolerancing (GD&T)
Desired

Skills:

- Master's Degree in Mechanical Engineering

- Experience with additive manufacturing and/or 3D printing

- Experience with mechanical engineering testing
- Familiar with PTC Windchill
- Familiar with aerospace industry specifications (ASME, ASTM, SAE, etc.)
- Understanding of design for manufacturing (DFM) principles
Security Clearance Statement:
This position requires a government security clearance, you must be a US Citizen for consideration.
Clearance Level: Top Secret
Other Important Information You Should Know
Expression of Interest:
By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.
Ability to Work Remotely: Onsite Full-time:
The work associated with this position will be performed onsite at a designated Lockheed Martin facility.
Work Schedules:
Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.
Schedule for this Position: 9x80 every other Friday off
Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.
The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.
At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work. With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility.

Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility. If this sounds like a culture you connect with, you're invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs , and apply for roles that align with your qualifications.
Experience Level: Experienced Professional
Business Unit: SPACE
Relocation Available:
Possible
Career Area:
Mechanical Engineering
Type:
Full-Time

Shift: First
Position Requirements
10+ Years work experience
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