Senior Thermal Engineer Verified today

AST SpaceMobile · Dallas, TX · Mechanical · first seen 2026-09-03

Position Overview

AST SpaceMobile is building the first global cellular broadband network in space to operate with standard, unmodified mobile devices. We seek a Senior Thermal Engineer to support thermal performance and integrity of our space-based communications system, focusing on on-orbit thermal operations, analysis, and anomaly resolution.

Key Responsibilities

  • Lead on-orbit thermal support activities for spacecraft systems
  • Define thermal fault detection, isolation, and recovery (FDIR) limits and automated responses across configurations
  • Lead troubleshooting and anomaly resolution efforts with the thermal engineering team
  • Support development of spacecraft concepts of operations (CONOPS) to ensure thermal safety during all mission phases
  • Establish and improve processes for monitoring and analyzing on-orbit thermal telemetry data
  • Serve as liaison between thermal, flight operations, and software engineering teams
  • Perform thermal modeling and analysis using industry-standard tools
  • Support spacecraft and subsystem-level thermal testing activities
  • Contribute to ongoing improvements in thermal design, processes, and operational strategies

Required Qualifications

  • Bachelor's degree in Mechanical Engineering or related technical field
  • Minimum 5 years of experience as a spacecraft thermal engineer or closely related role

Preferred Qualifications

  • Master's degree or higher in Mechanical Engineering or related field
  • Experience in fast-paced or high-growth technical environments
  • Basic programming experience (Python, MATLAB, or similar)
  • Proficiency with thermal analysis tools (Thermal Desktop or similar)
  • Experience with engineering data analysis tools and telemetry systems

Required Skills

  • Strong interpersonal and communication skills (written and verbal)
  • Ability to collaborate effectively within cross-functional teams
  • Ability to work independently and take ownership of tasks
  • Meticulous attention to detail
  • Adaptability in fast-paced and dynamic environments

Physical Requirements

  • Ability to work in standard office environment and use computer for extended periods
  • Ability to occasionally support testing activities in lab or operational settings
  • Willingness and ability to travel domestically and internationally as required