Thermal Engineer, Project Sunrise Verified today

Blue Origin · 2 Locations · Mechanical · first seen 2026-10-23

About the Role

Join Blue Origin's Advanced Concepts and Enterprise Engineering (ACE) team to develop next-generation spacecraft thermal systems for Project Sunrise, a satellite constellation of orbital data centers. You will design, analyze, and integrate advanced heat rejection systems, with specific emphasis on high-performance space radiators. You will apply thermal principles and advanced analysis tools to solve complex heat transfer challenges in the harsh space environment.

Key Responsibilities

  • Design and analyze high-performance radiators and thermal control systems (heat pipes, cold plates, vapor chambers, oscillating heat pipes, pumped fluid loops) for spacecraft.
  • Develop and apply thermal models using Thermal Desktop, Sinda/Fluint, and CFD software to predict and validate component and system performance.
  • Perform detailed analysis of spacecraft thermal environments, including orbital mechanics and solar, albedo, and planetary IR heating.
  • Support the full lifecycle of thermal hardware from concept and trade studies through detailed design, manufacturing, and testing.
  • Use CFD to investigate complex thermal-fluid phenomena, such as two-phase flow in heat rejection loops.
  • Collaborate with interdisciplinary teams to define thermal requirements, interfaces, and integration strategies.
  • Analyze test data to anchor thermal models and demonstrate compliance with requirements.

Minimum Qualifications

  • Bachelor of Science degree in Mechanical Engineering, Aerospace Engineering, or related field.
  • 2+ years of experience in thermal design and analysis, OR an advanced degree (Master's or PhD) with focus on heat transfer or thermal-fluid sciences.
  • Demonstrated understanding of fundamental heat transfer principles (conduction, convection, radiation).
  • Experience with at least one thermal analysis or CFD software package (Thermal Desktop, Sinda/Fluint, Star-CCM+, Ansys Fluent).
  • Must be a U.S. citizen or national, U.S. permanent resident (current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum.

Preferred Qualifications

  • Ph.D. or Master's degree in a relevant field with dissertation/thesis focused on heat transfer, radiator technology, or CFD.
  • Experience in the design and analysis of thermal systems for spacecraft or vacuum environments.
  • Proficiency with Thermal Desktop and Sinda/Fluint.
  • Experience modeling two-phase flow, heat pipes, cryogenic fluids, or other complex thermal-fluid systems.
  • Knowledge of spacecraft thermal control hardware and materials.
  • Understanding of AI and Machine Learning applications in engineering, with demonstrated ability to learn and integrate new technologies.
  • Excellent written and verbal communication skills.

Compensation

Base pay range varies by location:

  • Colorado: $98,208 - $137,491.20
  • Washington: $107,136 - $149,990.40

Benefits

  • Medical, dental, vision, basic and supplemental life insurance.
  • Paid parental leave, short and long-term disability.
  • 401(k) with company match up to 5%.
  • Education Support Program.
  • Stock options for regular employees (20+ hours/week).
  • Up to four weeks paid time off per year based on scheduled hours.
  • Up to 14 company-paid holidays.
  • Performance bonuses based on role and level (not guaranteed).