Mechanical Engineer - Thermal Analysis (Level II)

Job ID : 709346BR

Date posted : Oct. 30, 2025

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

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. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education / training, key skills as well as market and business considerations when extending an offer.

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.

(Washington state applicants only) Non-represented full-time employees : accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.

This position is incentive plan eligible.

Pay Rate : The annual base salary range for this position in most major metropolitan areas in California, Massachusetts, and New York is $80,600 - $139,840. For states not referenced above, the salary range for this position will reflect the candidate's final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education / training, key skills as well as market and business considerations when extending an offer.

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.

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