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Thermal Engineer; E3-E4

Job in Littleton, Arapahoe County, Colorado, 80161, USA
Listing for: ExoTerra
Full Time position
Listed on 2026-02-18
Job specializations:
  • Engineering
    Aerospace / Aviation / Avionics, Electrical Engineering
Salary/Wage Range or Industry Benchmark: 93000 - 150000 USD Yearly USD 93000.00 150000.00 YEAR
Job Description & How to Apply Below
Position: Thermal Engineer (E3-E4)

Senior Thermal Engineer

Exo Terra Resource – Littleton, CO 80127

Salary: $93,000 – $150,000 per year (Full‑time)

Exo Terra is an industry leader in the development and production of electric propulsion systems for small and micro satellites. The company provides propulsion solutions for space exploration, defense and commercial programs. We are a dynamic and rapidly expanding project‑based manufacturing company in the aerospace and defense sector.

Exo Terra is also now part of Voyager Technologies. Voyager is an innovative defense, national security and space technology company committed to advancing and delivering transformative, mission‑critical solutions. We tackle the most complex challenges to unlock new frontiers for human progress, fortify national security, and protect critical assets to lead in the race for technological and operational superiority from ground to space.

Job Summary:

Exo Terra is seeking a full‑time Thermal Engineer. The hired employee will be responsible for completing design, analysis, and test tasks as they relate to Hall‑effect Thrusters, xenon and krypton propellant flow control systems, and electronic power systems.

Responsibilities and Duties:

  • Perform thermal analyses, in accordance with industry standards, of systems ranging from components to entire spacecraft, in order to support design development, verify customer requirements, and ensure functionality in thermally stressing space environments
  • Provide thermal support for multiple programs simultaneously
  • Understand customer‑specified requirements, interface with customers, present analysis results to customers in design reviews, and prepare reports of analysis results for delivery to customers
  • Support thermal testing of components and propulsion systems
  • Correlate thermal models to test data
  • Support signoff of flight hardware for delivery to customers
  • Contribute to process and efficiency improvements
  • Communicate and collaborate effectively with various teams, including program management, design, manufacturing, analysis, etc

Required

Qualifications and Skills:

  • Bachelor's degree or higher in Mechanical or Aerospace Engineering
  • 5+ years of industry experience (pay commensurate with experience)
  • Extensive experience with Thermal Desktop analysis software
  • Strong knowledge of principles of heat transfer and thermodynamics
  • Strong mathematical foundation (calculus, linear algebra, differential equations, etc.)
  • Strong written/verbal communication skills
  • Engaged learner
  • Self‑starter
  • Location:

    Littleton, CO (Required)
  • Language:
    English (Required)
  • Work authorization:
    United States (Required)

Desired

Qualifications and Skills:

  • Experience with spacecraft thermal analysis
  • Experience with plasma thermal analysis
  • Experience with high power electronic thermal analysis
  • Experience with thermal vacuum testing
  • Experience with space or satellite hardware

Schedule:

  • 8 hour shift
  • Monday to Friday
  • Full time

Standard Questions added to job post:

  • Please provide an up‑to‑date resume
  • Are you able to reliably commute or are you willing to relocate to the Littleton, CO area?
  • Do you now, or will you, later on, require sponsorship for employment visa status to legally work for our company in the United States?
  • Are you able to speak and write fluently in English?

Benefits:

  • 401(k)
  • 401(k) matching
  • 10 Holidays per year
  • Dental Insurance
  • Disability insurance
  • Health insurance
  • Health savings account
  • Holiday shut down (Christmas to New Year’s)
  • Paid time off: 3 weeks Vacation and 1 week Sick Time
  • Parental leave
  • Relocation assistance
  • Tuition reimbursement
  • Vision insurance
  • Flexible spending account
  • Life insurance

Work Location:

In person

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