# Thermal Engineer (Senior) at Apex Space

- Company: Apex Space
- What the company does: Mass-manufacturing productized satellite platforms to accelerate deployment of critical, next-generation constellations. Backed by a16z and CRV.
- Company website: https://www.apexspace.com
- Type: Startups
- Level: Senior
- Location: Los Angeles
- Work setup: On-site
- Pay: $150K to $190K base salary per year (USD)
- Posted: 2026-09-10
- Apply by: 2026-10-25
- Apply: https://jobs.ashbyhq.com/apex-technology-inc/89aeba1c-ff4d-4b5e-8d94-b6e1c93b8a59
- Page: https://www.1752.vc/careers/jobs/apex-space-thermal-engineer-senior/

## About the role

Apex is seeking a Senior Thermal Engineer to own the thermal design and performance of our spacecraft from concept through flight. In this role, you’ll solve complex thermal challenges across the vehicle, develop and validate spacecraft level thermal models, and directly influence hardware design and mission performance. You’ll work hands-on with flight hardware and partner across engineering teams to take thermal systems from early design through integration, test, launch, and on orbit operations.

## What they're looking for

- U.S. Person status is required as this position requires access to export-controlled data
- Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, or a related field
- 5+ years of experience in thermal engineering or analysis
- Experience with thermal modeling and analysis tools
- Strong understanding of heat transfer and thermal engineering fundamentals
- Strong analytical and problem-solving skills with the ability to work in a fast-paced environment

Tags: Engineering