Principal Thermal Engineer

BLUE ORIGIN

Principal Thermal Engineer at Blue Origin focusing on thermal systems for the reusable New Glenn launch vehicle. Responsible for analysis and design, ensuring safe human spaceflight.

Posted 6/12/2026full-timeColorado, Florida, Washington • 🇺🇸 United StatesLead💰 $190,458 - $266,641 per yearWebsite

Tech Stack

Tools & technologies

Python

About the role

Key responsibilities & impact

Support the development and operations of New Glenn spaceflight systems
Conduct thermal and fluid system design analysis for launch vehicle components
Coordinate analysis questions from multiple teams and define analysis scope
Implement aerothermal, rocket plume heating, and natural environments for all flight phases
Document and maintain analysis inputs, models, and results in reports and data books

Requirements

What you’ll need

Minimum of BS degree in Mechanical or Aerospace Engineering
15 or more years of experience in the fields of thermal or thermodynamic analysis
Demonstrated expertise with one or more thermal/fluids modeling tools is required
Experience reviewing and critiquing models and results developed by junior engineers
20 or more years of experience and an MS or PhD degree preferred
Demonstrated expertise with Thermal Desktop, SINDA/FLUINT, ANSYS Classic
Experience analyzing booster and upper stage of rocket systems
Experience analyzing cryogenic fluid systems
Experience with insulation and TPS on launch and re-entry vehicles
Demonstrated expertise using MATLAB, Python and Git for automating workflow
Knowledge in the use of 3D CAD tools (CREO is preferred)

Benefits

Comp & perks

Medical, dental, vision, basic and supplemental life insurance
Paid parental leave
Short and long-term disability
401(k) with a company match of up to 5%
Education Support Program
Stock Options for all regular employees (working at least 20 hours/week)
Paid Time Off: Up to four (4) weeks per year based on weekly scheduled hours, and up to 14 company-paid holidays.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

thermal analysisthermodynamic analysisthermal modelingfluid modelingrocket plume heatingcryogenic fluid systemsinsulationthermal protection systems (TPS)3D CADautomating workflow

Soft Skills

coordinationcommunicationreviewingcritiquingdocumentation

Certifications

BS degree in Mechanical EngineeringBS degree in Aerospace EngineeringMS degreePhD degree