Systems Engineer I

Application ends: March 28, 2025

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Job Description

As a Systems Engineer I (Thermal Analysis) you will work with our teams to perform thermal analyses, including: (1) Creating design specifications for heat pipes, phase-change material systems, radiators, and heaters; (2) Supporting thermal testing by writing test plans, creating analytical or computational predictions, and evaluating test results and performing model correlation; and, (3) Authoring, reviewing, and releasing substantiation reports and trade study documents to support thermal design.

Sierra Space, based in Louisville, Colorado with operations in Madison, Wisconsin, Durham, North Carolina, and Kennedy Space Center, Florida, designs and manufactures advanced spacecraft, satellites, propulsion and environmental systems, spacecraft subsystems and components for the U.S. government (including NASA), commercial customers and international organizations. Learn more about Sierra Space
  • Bachelor’s of Science degree in Mechanical Engineering, Aerospace Engineering, or related discipline and typically 0-2 or more years of relevant experience
  • Relevant work experience may substitute for required education. (Required Verbiage)
  • Basic understanding of thermodynamics, heat transfer and fluid mechanics
  • Experience simplifying CAD and creating thermal 2D and 3D meshes
  • Demonstrated experience with thermal analysis of satellites or space vehicles
  • Basic understanding of orbit mechanics and the impact of different orbits on thermal design
  • Experience with thermal analysis and software tools such as Thermal Desktop, SINDA and FLUENT
  • Familiarity with passive and active thermal management techniques
  • Familiarity with ISS microgravity thermal environment
  • Familiarity with ISS payloads and rack thermal design
  • Experience with MATLAB, Python or TARP for post-processing
  • Familiarity with TVAC testing
  • Experience with Space Claim, Siemens NX, Jira
To conform to U.S. Government international trade regulations, 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 State or U.S. Department of Commerce.
With 30+ years of proven spaceflight heritage, Sierra Space has provided more than 4,000 space systems, subsystems and components to customers worldwide, and participated in more than 500 missions to space, including to Mars. The company has technology in production and in development to enable space habitats for short- and long-duration space travel, a fleet of Dream Chaser spaceplanes, and the first free-flying commercial space station. Please visit to learn more about Sierra Space, its business areas, capabilities, programs, products and services.
Physical/Mental/Emotional Requirements:
  • Frequently walk, sit, stand, climb stairs and steps
  • Frequently repeat same hand, arm, and finger motion many times to include finger and hand dexterity
  • Rarely lifting or carrying up to 20 lbs.
Working Conditions:
  • Rarely exposed to outdoor elements (high/low temperatures, sun, rain/snow, etc.)
  • Rarely exposed to fumes or hazardous chemicals/materials
  • Rarely exposed to loud noises

Estimated Starting Salary Range: $79,264.96 – $108,989.32

Sierra Space offers a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 8%, life insurance, 3 weeks paid time off, tuition reimbursement, and



At Sierra Space, our mission is to dream, innovate, inspire and empower the next generation to transform humanity through technology and imagination. As an Equal Opportunity Employer, we welcome our employees to bring their whole selves to their work. Sierra Space is committed to fostering an inclusive, accepting, and diverse environment free of discrimination on the basis of race, color, age, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. Contributions to Sierra Space come in many shapes and styles, and we believe diversity in our workforce fosters new and greater ways to dream, innovate, and inspire.
  • Health insurance