Spacecraft Thermal Engineer - On‑Orbit Lead

AST SpaceMobile; Dallas (TX); On-site; USD 120,000 - 180,000; Full time

Job summary

AST SpaceMobile seeks a Senior Thermal Engineer to support on-orbit thermal performance for its space-based communications system. You will lead thermal analysis, FDIR development, and anomaly resolution while collaborating with flight ops and software teams.

The role requires a minimum of 5 years in spacecraft thermal engineering, a Bachelor's in Mechanical Engineering, and proficiency in Python or MATLAB. Domestic/international travel expected; Master’s degree preferred.

Qualifications

• Bachelor’s degree in Mechanical Engineering or related technical field.
• 5+ years of experience as a spacecraft thermal engineer or in a closely related role.
• Master’s degree or higher in Mechanical Engineering or related field (preferred).
• Basic programming experience (e.g., Python, MATLAB, or similar).

Responsibilities

• Lead on-orbit thermal support activities for spacecraft systems.
• Define FDNR limits and automated responses across configurations.
• Lead troubleshooting and anomaly resolution with the thermal team.
• Develop CONOPS to ensure thermal safety during all mission phases.
• Monitor and analyze on-orbit thermal telemetry data.
• Coordinate between thermal, flight ops, and software teams.
• Perform thermal modeling and analysis using standard tools.
• Support thermal testing activities for spacecraft and subsystems.
• Contribute to ongoing improvements in thermal design and processes.

Skills

Thermal analysis

Cross-functional collaboration

Communication skills

Independent work

Travel willingness

Education

Bachelor's degree in Mechanical Engineering

Tools

Thermal Desktop

Python

MATLAB

Job description

AST SpaceMobile seeks a Senior Thermal Engineer to support on-orbit thermal performance for its space-based communications system. You will lead thermal analysis, FDIR development, and anomaly resolution while collaborating with flight ops and software teams.

The role requires a minimum of 5 years in spacecraft thermal engineering, a Bachelor's in Mechanical Engineering, and proficiency in Python or MATLAB. Domestic/international travel expected; Master’s degree preferred.