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Salary
$79k – $147k per year
Location
In office (Highlands Ranch)
Seniority
Junior · 2+ years exp

Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Oct 12, 2026. Lockheed Martin scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Lockheed Martin is the largest defence contractor in the world, formed in 1995 by merging Lockheed Corporation with Martin Marietta and headquartered in Bethesda, Maryland. Its single most important programme is the F-35 Lightning II, the most expensive weapons system ever built, alongside the F-16, the C-130 transport and classified work at the Skunk Works advanced development unit. The company also dominates missile defence with THAAD and PAC-3 interceptors, supplies HIMARS and Javelin systems, owns the helicopter maker Sikorsky, and builds the Orion crew capsule and military satellites through its space division.

Standard 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.

Lockheed Martin Space is seeking a full-time Mechanical Engineer (Thermal Analysis).

In this role you will be supporting the Orion thermal analysis team by performing and owning thermal analyses on spacecraft components, subsystems (Avionics, Propulsion, etc.), and the entire spacecraft thermal system using standardized processes and tools (Thermal Desktop, SINDA/Fluint).

Other related responsibilities include providing technical memos and input to data packages to support peer and customer technical presentations; providing review, interpretation, flow-down and implementation of all program requirements; providing thermal engineering support for multi-week TVAC testing in Cape Canaveral, FL or Denver, CO and working interactively with diverse engineering disciplines in a fast-paced environment to develop cost-effective solutions to thermal control requirements which also satisfy producibility objectives defined by Manufacturing and Quality groups.

The information below reflects the standard job description for this position:

Researches, plans, designs and develops mechanical products and systems such as instruments, controls, robots, engines, machines and mechanical, thermal hydraulic or heat transfer systems for production, transmission, measurement, and use of energy. Applies research to the planning, design, development, and testing of mechanical and/or electromechanical systems, instruments, controls, engines, and/or machines.

Basic Qualifications

  • Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, of or a related technical field and/or equivalent work experience
  • Fundamental knowledge of heat transfer and thermodynamic principles
  • Experience supporting engineering design, analysis, and verification across the product development lifecycle.
  • Strong technical writing and presentation abilities.

Desired Skills

  • Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, of or a related technical field, with 2+ years of related experience and may have a post-secondary degree or training in a related discipline.
  • Hands on experience with Thermal Desktop and SINDA/FLUINT.
  • Experience using Python for scripting, data analysis, or model automation.
  • Familiarity with first order heat transfer calculations.
  • Experience designing spacecraft thermal control systems and hardware.
  • Experience supporting thermal-vacuum testing activities, including test preparation, instrumentation definition, and post-test model correlation.
  • Exposure to integration & test (I&T) operations, such as MLI installation and inspection of passive/active thermal control features.
  • Experience with CAD and thermal analysis tools (e.g., Creo, Thermal Desktop, ANSYS, or equivalent).
  • Demonstrated ability to apply analytical thinking to solve thermal performance challenges.

Pay Information

Full-Time Salary Range: $79300.00 - $147300.00

At Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow-both professionally and personally.

The salary range for this position is as listed on the requisition. Please note that the salary information listed 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(work location) and business considerations when extending an offer.

Benefits offered: Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability.

  • Annual short-term and/or long-term incentive compensation programs may be offered depending on the position. Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics.
  • For (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.
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