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Lockheed Martin

Mechanical Engineer - Thermal Analysis (Level II)

Lockheed Martin, Sunnyvale, California, United States, 94087

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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. We are a community of engineers looking for an enthusiastic Mechanical Engineer to join the tight‑knit group. The FBM Trident II D5 Life Extension 2 program (D5LE2) is ramping up to become one of Lockheed Martin’s premier Lines of Business that prioritizes partnership, integrity, and reliability.

Learn about the Trident II D5 Fleet Ballistic Missile. If so, join us as a part of a highly‑skilled analysis team for missiles and spacecraft systems!

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

Responsibilities

Performing thermal analyses on missile subsystem‑level hardware & avionics packages for the FBM D5LE2 program

Ownership of computational, physics‑based modeling, simulations, and results

Correlate model results to subsystem & package 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 & stakeholders

Provide recommendations to support peer and customer reviews

Leverage thermal analysis expertise to support key program milestone reviews

Provide documentation and recommendations to data packages to support key discussions; 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 of one or more of the following topics: thermodynamics, heat transfer, aero heating, material properties, computer programming

Knowledge of electronics/avionics heating & cooling

Understanding of physics‑based modeling, simulation, and/or analysis

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

Desired Skills

Bachelor’s degree (5+ years of experience) or Master’s degree (3+ years of experience) in Physics, Aerospace Engineering, Mechanical Engineering, or a related discipline

Demonstrated experience in thermodynamic analysis, heat transfer analysis, aeroheating analysis, material properties & characterization, and computer programming (Matlab, Python, Fortran)

Experience analyzing thermal systems and subsystem‑level components, particularly electronic/avionic packages under operating environments and providing cooling/insulation recommendations

Strong mathematical, analytic, and data processing skills

Experience with any of the following software packages: NX Thermal (Preferred), Thermal Desktop, SINDA, TSS, Abaqus

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

Excellent communication skills, both written and verbal, including MS Office proficiency

Experience with modern collaboration tools, such as Jira and Confluence

Active Top Secret clearance

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

Pay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is \$70,100 - \$123,625. For states not referenced above, the salary range for this position will reflect the candidate’s final work location.

Benefits offered: Medical, Dental, Vision, Life Insurance, Short‑Term Disability, Long‑Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays.

This position is incentive plan eligible.

Equal Opportunity Employer 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.

Company Culture 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.

Job Details

Experience Level:

Experienced Professional

Business Unit:

SPACE

Relocation Available:

Possible

Career Area:

Mechanical Engineering

Type:

Full‑Time

Shift:

First

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