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Spacecraft Thermal Engineer (IIIII)

Terran Orbital


Job Location:

Irvine, CA - USA

Monthly Salary: $ 130 - 160
Posted: 24 May 2026 (30+ days ago)
Application Deadline: 18 October 2026
Vacancies: 1 Vacancy
The job posting is outdated and position may be filled

Job Summary

Join a team where your impact reaches beyond the stars! At Terran Orbital youre not just part of the system youre a vital force propelling our mission forward. As trailblazers in satellite manufacturing and aerospace innovation we shatter boundaries daily to deliver groundbreaking solutions that power our nations defense and commercial missions. We are a unique fast growing and trusted team dedicated to swiftly and efficiently designing building launching and operating state of the art satellites for advanced mission constellations. If youre driven by purpose inspired by challenges and ready to leave your mark on the universe youll find a home and endless opportunities for growth here. Together lets redefine what is possible in orbit and beyond!

Terran Orbital is seeking an experienced Spacecraft Thermal Engineer (II/III) to join our growing team. Reporting to the Thermal Engineering Manager theSpacecraft Thermal Engineer (II/III)will be involved in all aspects of a spacecrafts development. They will support spacecraft thermal systems configuration from the concept level through design reviews design verification and addition to predictive and analytical work the Sr. Engineers may serve in team leadership roles or as subject area experts.

Key Duties and Responsibilities

  • Work with a multidisciplinary team to reduce thermal risk by identifying the constraining elements of a thermal design and recommend mitigation strategies from the concept level to design production and operation.
  • Work with spacecraft system engineers to translate spacecraft CONOPS (Concept of Operations) into representative thermal design scenarios.
  • Develop thermal models of active and passive thermal designs using a mixture of numerical solutions and hand calculations of spacecraft systems subsystems avionics and mechanisms that predict temperature margins in a variety of thermal space environments/
  • Participate in spacecraft build and testing campaigns related to the thermal design aspect of the spacecraft including periods of off-hours or on-call work.
  • Develop thermal verification test plans and support test activities monitor and correlate test results to model predictions.
  • Prepare technical documents and PowerPoint presentations to present the results of analysis and tests to Managers Customers and/or Stakeholders
  • Support Business Development activities including proposals white papers and requests for information.
  • Develop tools to support concept trade studies and post-processing analysis.
  • Other duties as applicable to thermal engineer may be assigned as necessary.

Qualifications and Skills

  • Bachelors in mechanical or aerospace engineering with a Thermal focus or similar discipline.
  • 2 years of experience (Engineer - Level 2) in thermal engineering or similar disciplines related to spacecraft
  • 5 years of experience (Sr Engineer - Level 3) in thermal engineering or similar disciplines related to spacecraft
  • Must have experience leading teams and mentoring entry-level engineers.
  • Proficiency with Thermal Desktop is a must.
  • Must possess an understanding of the basic principles of radiation and conduction heat transfer in conjunction with space environment heating effects and parameters associated with spaceflight applications.
  • Deep understanding of orbital mechanics and thermal design considerations with respect to MEO LEO GEO and other orbits.
  • Proven knowledge of spacecraft mission design and associated subsystems/architecture as relates to thermal design.
  • Strong knowledge of spacecraft thermal design management and surface treatments.
  • Experience with process development as pertains to thermal analysis methods testing methods or model correlation.
  • Knowledge of environmental requirements engineering thermal vacuum/ambient pressure testing and hands-on engineering project experience including use of data acquisition systems.
  • Comfortable working in a fast-paced start-up environment with a strong desire to be a leader/key contributor on a small team.
  • Highly responsible team player with a positive attitude and excellent communication and documentation skills.
  • Experience with SolidWorks or other CAD software.
  • Experience developing detailed thermal and simplified thermal models for spacecraft systems subsystems and components.
  • Proficiency with computational scripting languages (MATLAB Python Mathematica etc.).
  • U.S. Citizenship with ability to obtain and maintain DoD security clearance.

Additional Differentiators

  • Master of Science degree in Mechanical or Aerospace engineering with a Thermal focus or similar discipline.
    • Master of Science degree substitutes for two years of experience.
    • Ph.D. degree substitutes for five years of experience.
  • Experience with technical leadership responsibilities such as serving on Risk Reduction teams or as Subject Area Expert.
  • Ownership of technical issues with respect to Engineering Review Boards NCRs and other engineering anomalies with the expectation of bringing it to resolution.
  • Experience with build integration and testing of propulsion thermal electrical and structural systems; including but not limited to vibration shock thermal vacuum and radiation testing.
  • Experience in a production environment within the space/ aerospace industry.

Salary Ranges

Spacecraft Thermal Engineer (Level II) - $100k to $130k

Sr. Spacecraft Thermal Engineer (Level III) - $130k to $160k

Your actual level and base salary will be determined case-by-case and may vary based on the job-related qualification knowledge skills education and addition to base salary we offer 100% covered medical dental and vision coverage a 401(k) match Flexible Time Off (FTO) covered life insurance maternity and paternity leave tuition reimbursement employee referrals and lots of swag!

Salary Range

$100000 - $160000 USD

Full-time positions only:

Benefits

  • 100% Company-paid comprehensive medical dental and vision coverage for you and your dependents
  • 401(k) Match
  • Flexible Time Off (FTO)
  • Education Reimbursement
  • Competitive Paid Parental Leave

About Terran Orbital

Terran Orbital is a leading manufacturer of satellite products primarily serving the aerospace and defense industries. Terran Orbital provides end-to-end satellite solutions by combining satellite design production launch planning mission operations and on-orbit support to meet the needs of the most demanding military civil and commercial customers. Learn more at

Physical Demands

An employee must meet the physical demands described to perform the essential functions of this job performing the duties of this job the employee is routinely required to sit or stand for long durations of time in addition to bending reaching and walking. This would require the ability to lift or move objects up to 10 pounds and occasionally lift or move objects up to 25 pounds. This position is generally sedentary with substantial computer usage.

Work Environment

The job operates in a professional office environment but in a manufacturing company. This job routinely uses standard office equipment such as computers phones photocopiers and scanners.

Disclaimers

To comply with U.S. Government space technology export regulations the applicant must be a U.S. citizen lawful permanent resident of the U.S. protected individual as defined by 8 U.S.C. 1324b(a)(3) or eligible to obtain the required authorizations from the U.S. Department of addition please note that this position may require a current United States National Security clearance or eligibility for such a clearance.

Terran Orbital is an Equal Opportunity/Affirmative Action Employer. We consider applicants without regard to race color religion age national origin ancestry ethnicity gender gender identity gender expression sexual orientation marital status veteran status disability genetic information or membership in any other group protected by federal state or local law.

If you need assistance or accommodation due to a disability you may contact us at .

Terran Orbital does not accept unsolicited resumes from recruiters employment agencies or staffing firms. To conduct business with Terran Orbital a Master Services Agreement (MSA) must be executed and confirmed prior to submitting any information relating to a potential candidate. Without a signed MSA Terran Orbital shall not be responsible to any individual or entity for any payment relating to any form of fee or compensation.

And in the event that a resume or candidate is submitted by a recruiter an employment agency or a staffing firm without a fully executed MSA Terran Orbital has the unrestricted right to pursue and hire any of those candidate(s) without any legal or financial responsibility to the recruiter agency and/or firm.


Required Experience:

IC