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Sr. Mechanical Engineer (Thermal Engineering)

Jobs via Dice
Littleton, CO Full Time
POSTED ON 4/16/2026 CLOSED ON 5/13/2026

What are the responsibilities and job description for the Sr. Mechanical Engineer (Thermal Engineering) position at Jobs via Dice?

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.

When you join Global Security (GS), you will be a part of a team that excels at providing national capabilities that help maintain a technical advantage over our adversaries. Our team has a long and proud history supporting missions that contribute to National Security. We are passionate about space, our customers, our company, and our team. One day, the world may hear the full story of your GS achievements and discover the critical role you have played to defeat the enemies of freedom. Come join the team that is working quietly to keep the light of liberty shining!

As a Thermal Engineer on GS, you will:

Perform detailed thermal design and analysis on spacecraft components and the entire spacecraft thermal system

Provide technical memos and recommendations to support peer and customer reviews

Present design and analysis data to the spacecraft design/engineering team, customer technical representatives, and Program Office personnel at technical interchange meetings and formal design reviews

Provide review, interpretation, flow-down, and implementation of program requirements

Provide test support for component-level and system-level thermal tests

Basic Qualifications

Bachelor's Degree in Engineering (or related technical field) or equivalent experience/combined education

Comprehensive understanding of thermal analysis methods and processes (e.g. heat transfer, thermodynamics, fluid dynamics, classical hand calculations)

Experience with finite difference and/or finite element numerical solution tools (e.g., Thermal Desktop, SINDA, NX Thermal)

ship and the desire and ability to obtain/maintain a Top Secret/SCI Security Clearance

Desired Skills

3 years of relevant professional experience in thermal analysis of space structures

Experience with analysis and test of thermal environments (e.g., thermal vacuum, thermal cycling, thermal balance)

Experience with engineering level computer programming (e.g. Matlab)

Experience with test engineering, instrumentation, data collection, and/or test reports

Self-motivated with an active interest to learn from and engage with a team

Excellent written and verbal technical communication skills

Ability to occasionally support 24/7 activities

Active Top Secret or SCI Security Clearance

EEO

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.

    Other Important Information

    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.

    Work Schedule Information

    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.

    National Pay Statement

    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 $85,500 - $150,765. 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.

    Premium Pay Statement

    Pay Rate: The annual base salary range for this position in most major metropolitan areas in California, Massachusetts, and New York is $98,300 - $170,315. 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.

    Salary : $85,500 - $150,765

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