Thermal Engineer, Space Radiator Systems

Blue Origin; Littleton (CO); On-site; USD 98,000 - 137,000; Full time

Benefits offered by this job

Stock options

401(k) with company match

Paid time off

Job summary

Blue Origin, based in Colorado, is seeking a Thermal Engineer to design and analyze high‑performance radiators and thermal control systems for in‑space vehicles. You will build thermal models, validate with CFD tools, and assess orbital and solar heating impacts within a safety‑minded, inclusive culture.

You will work with interdisciplinary teams to define requirements, support full hardware lifecycles, and contribute to mission success.

Qualifications

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

Responsibilities

• Design and analyze high‑performance radiators and other thermal control systems for spacecraft.
• Develop and apply thermal models to predict performance using CFD and CAD tools.
• Perform detailed analysis of spacecraft thermal environments including orbital mechanics and solar heating.
• Support lifecycle of thermal hardware from concept through manufacturing and testing.
• Collaborate with interdisciplinary teams to define thermal requirements and interfaces.

Skills

CFD software

Heat transfer

Thermal analysis

Collaboration

Orbital mechanics

Education

Bachelor’s degree in Mechanical or Aerospace Engineering

Advanced degree (MS/PhD) in heat transfer or thermal-fluid sciences

Tools

Thermal Desktop

Sinda/Fluint

Star-CCM+

Ansys Fluent

Job description

Blue Origin, based in Colorado, is seeking a Thermal Engineer to design and analyze high‑performance radiators and thermal control systems for in‑space vehicles. You will build thermal models, validate with CFD tools, and assess orbital and solar heating impacts within a safety‑minded, inclusive culture.

You will work with interdisciplinary teams to define requirements, support full hardware lifecycles, and contribute to mission success.