Thermal Engineer III – Lunar Permanence

BLUE ORIGIN

Thermal Engineer III developing spacecraft thermal control systems for Blue Origin's lunar program. Responsible for development and integration of thermal components for the Blue Moon Crew Lander.

Posted 7/9/2026full-timeGreater Seattle Area • California, Colorado, Florida, Washington • 🇺🇸 United StatesSeniorLead💰 $130,706 - $182,987 per yearWebsite

About the role

Key responsibilities & impact

Contribute to the definition and development of spacecraft thermal control systems
Responsible for the development and integration of thermal components across the Blue Moon Crew Lander as a part of the HLS Crew Lander Thermal Systems Engineering Vehicle Team
Responsible for the system design, development, delivery, and deployment of a heat rejection system
Leading design, build, integration, testing, and verification efforts

Requirements

What you’ll need

Bachelor’s degree or higher in Mechanical or Aerospace Engineering
10+ years of relevant thermal engineering experience
Ability to perform trade studies using first principles and engineering fundamentals to make clear recommendations with partial information
Strong grasp of heat transfer, and fluid mechanics
Demonstrated experience in designing, sizing, building, testing, verifying, and validating aerospace hardware is required
Demonstrated ability to identify, define, and manage technical interfaces
12+ years of relevant thermal engineering experience preferred
Strong understanding spacecraft thermal control hardware and spacecraft thermal systems design specifically active thermal control systems.
Demonstrated ability to own and deliver hardware or systems within an integrated engineering team in the aerospace industry
Vendor technical management and product delivery experience
Experience with technology development or maturation efforts, including leading development testing efforts and managing development risks
Experience with heat exchangers and cryogenic fluids
Able to work well in an integrated collaborative team environment, including frequent interactions with other engineers, managers, and program leadership
Highly self-motivated with strong organizational and written/oral communication skills – able to prioritize and execute tasks in a fast-paced environment.

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.
Dependent on role type and job level, employees may be eligible for benefits and bonuses based on the company's intent to reward individual contributions and enable them to share in the company's results, or other factors at the company's sole discretion. Bonus amounts and eligibility are not guaranteed and subject to change and cancellation.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Thermal Control Systems DevelopmentHeat Rejection System DesignAerospace Hardware TestingTechnical Interface ManagementHeat ExchangersCryogenic Fluids

Soft Skills

Organizational SkillsWritten CommunicationOral CommunicationTeam CollaborationSelf-Motivation

Certifications

Bachelor’s Degree in Mechanical EngineeringBachelor’s Degree in Aerospace Engineering