Senior Spacecraft Thermal Engineer

Job Description

Job Description

Salary : $140,000 - $200,000

Who Were Looking For

Quantum Space is redefining mobility and autonomy in cislunar and geostationary space. Our Ranger spacecraft deliver high delta-V and on-orbit maneuverability that enable customers to access, operate, and persist in orbits previously out of reach. Were building the infrastructure, vehicles, and operational expertise that connect and protect assets across the EarthMoon system.

We are seeking a Senior Spacecraft Thermal Engineer to lead the development, implementation, and validation of thermal control solutions for our spacecraft platforms. In this high-impact role, you will own major aspects of spacecraft thermal design, analysis, and verification, working closely with a fast-moving team of engineers and scientists to shape the future of in-space systems.

This role is for an experienced technical leader who thrives in a startup-paced environment, can take broad responsibility for thermal system performance, and can mentor junior engineers while also rolling up their sleeves for hands-on integration and testing.

Where Youll Make an Impact

• Lead development of high-fidelity spacecraft thermal models for prediction of on-orbit performance.
• Own spacecraft-level thermal architecture, including active and passive thermal control design.
• Review, refine, and correlate as-built thermal models and vendor-supplied thermal documentation.
• Provide expert recommendations to mitigate thermal risks across spacecraft lifecycle phases.
• Collaborate closely with mechanical, electrical, and systems engineering teams to ensure spacecraft designs meet thermal requirements.
• Support thermal vacuum (TVAC) test planning, execution, correlation, and troubleshooting.
• Mentor and guide junior thermal engineers; establish best practices and processes for modeling, analysis, and documentation.
• Develop tools, workflows, and standards within the thermal ecosystem to improve efficiency and repeatability of future programs.
• Generate simplified models, thermal environments, and interface documentation for suppliers and customers.
• Review and approve component and assembly designs for thermal flight readiness.
• Produce engineering content and analyses for design reviews, test readiness reviews, and verification reports.
• Support integration, test, and launch-site operations as the subject-matter expert for spacecraft thermal performance.

What It Takes

Nice to Have

What you'll get

Additional Requirements

To comply with U.S. Government space technology export regulations, including ITAR, applicants must be a U.S. citizen, lawful permanent resident, protected individual per 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.

Apply now. Join us in building the next generation of spacecraft.