Job ID: 720839BR Date posted: Mar. 17, 2026
Description:Space and strategic defense systems operate in some of the most unforgiving environments imaginable. Success depends on precision — and thermal performance is often the difference between mission success and mission failure.

At Lockheed Martin Space, we are redefining resilience and speed through our 21st Century Security® vision. We don’t just build systems — we engineer survivability, performance, and reliability into every component. As a Level 4 Thermal Engineer, you will serve as a technical leader driving the thermal architecture of advanced missile systems from concept through qualification and production.

This position supports spacecraft, missile, hypersonic, or other advanced aerospace platforms operating in extreme and highly dynamic environments.

If you’re looking for ownership, influence, and the opportunity to solve complex, high-consequence engineering challenges — this role is built for you.

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Description: As a Mechanical Integration Engineer, you will oversee the end-to-end mechanical integration of a complex missile system under development. This will include management of mechanical interfaces, resolution of mechanical integration issues through coordination between suppliers and internal design teams through all phases of the lifecycle. Day to day activities will include technical leadership of a multi site team, planning future activities, briefing leadership on progress and challenges, and driving integrated technical solutions to closure.

• Perform mechanical integration for the flight system, including system development and oversight of structures/mechanisms, propulsion, ACS, and thermal protection, in collaboration with the Requirements & Verification team
• Lead and coordinate efforts of other mechanical integrators within the team
• Develop and maintain the mechanical configuration model and internal missile mechanical Interface Control Documents (ICDs)
• Work with Certified Principal Engineers (CPEs) and designers to establish missile internal mechanical interfaces to ensure smooth integration at the system level
• Provide independent review and coordination to ensure flight system designs are mechanically compatible
• Lead and support anomaly investigations during integration and test phase
• Participate in design maturity reviews
Basic Qualifications:
• Extensive knowledge of mechanical engineering fundamentals including structures, mechanisms, materials, and analysis
• Experience with missile mechanical design, mechanical integration, ATLO, and/or manufacturing experience
• Experience defining and documenting system mechanical interfaces
• Familiarity with ASME Y14.5
• Experience leading projects or teams
• Ability to obtain a Secret clearance
Desired Skills:
• 14 years minimum of Payload/Spacecraft Layout, Integration, fabrication, and/or testing experience.
• 5 years CREO experience
• 5 years minimum experience with releasing drawings in EPDM
• Familiarity with Industry Standard specification (NAS, MIL, MS, etc.)
• Understanding of Lockheed Martin drafting standards and materials and process specifications (MAP, LAC, EPS, LM, etc.)
Experience with large, complex tolerance analysis
Experience with missile thermal protection systems
Experience with propulsion/control system integration
• Design for Manufacturing/Integration/Testability (DFM) experience
Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.
Clearance Level: 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 $122,900 - $216,660. 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.
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