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Mechanical Engineer – Thermal Analysis; Level II

Job in Sunnyvale, Santa Clara County, California, 94087, USA
Listing for: Lockheed Martin
Full Time, Seasonal/Temporary position
Listed on 2026-01-02
Job specializations:
  • Engineering
    Systems Engineer, Aerospace / Aviation / Avionics
Job Description & How to Apply Below
Position: Mechanical Engineer – Thermal Analysis (Level II)

LMCareers Business UnitSPACESecurity Clearance Top Secret
Shift First Direct/Indirect Direct Business  Area Space
Department 73A7A00:

SMD Mechanical
Job Class Mechanical Engineering Job Category Experienced Professional
Program FBM D5LE2

Req Type Full-Time
Job 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, invest, 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 workforce 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!

For over 60 years, the Fleet Ballistic Missile (FBM) team has supported the Navy’s mission to provide affordable and credible strategic defense. We offer unique career opportunities and challenges on a program with a rich history and exciting future. We help keep this nation and our allies secure.

Lockheed Martin Space is seeking a Mechanical Engineer to join the FBM Missile Flight Sciences Engineering team in Sunnyvale, CA! This position will have the exciting opportunity support the Aerothermal team, and the successful candidate will be responsible for the following:

  • Performing thermal analyses on missile system-level and component-level hardware for the FBM Common Missile Compartment program
  • Ownership of computational, physics-based modeling, simulations, and results
  • Correlate model results to missile requirements and support risk mitigation
  • Work and interact with multiple engineering fields across multiple sites
  • Present key findings and results to internal and external customers
  • Provide recommendations to support peer and customer reviews
  • Leverage thermal analysis expertise to support key program milestone reviews
  • Provide user documentation and recommendations to data packages to support peer and customer reviews, present analysis data to engineering teams, customer technical representatives, and Program Office personnel at technical interchange meetings and program milestone design reviews
Basic Qualifications
  • Knowledge & understanding of one or all of the following: thermodynamics, heat transfer, material properties, and computer programming

  • Understanding of thermal computational, physics-based modeling & simulation and analysis

  • Ability to obtain a Top Secret clearance; US citizenship is required

Desired skills
  • Bachelor’s degree (2 years of experience) or Master’s degree in Physics, Aerospace Engineering, Mechanical Engineering, or a related discipline

  • Demonstrated knowledge & experience in some or all of the following: thermodynamics, heat transfer, material properties, and computer programming (Matlab, Python, Fortran)

  • Experience analyzing thermal systems with considerations of subsystem/component-level impacts

  • Demonstrated mathematical, analytic, and data processing skills

  • Prior experience with and knowledge of the following software packages: NX Thermal (Preferred), Thermal Desktop, Abaqus

  • Knowledge of or experience with testing & instrumentation including test procedure development, instrumentation definition, test direction, and post-test model correlation

  • Strong communication skills, both written and verbal, including MS Office proficiency

  • Demonstrated presentation skills in front of customers, stakeholders, and/or leadership

  • Active Top Secret clearance

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.
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