# Senior Thermal Systems Design Engineer at Astro Mechanica

- Company: Astro Mechanica
- What the company does: We're reinventing aircraft from the engine forward. Backed by Y Combinator and a16z.
- Company website: https://astromecha.co/
- Type: Startups
- Level: Senior
- Location: San Francisco
- Work setup: On-site
- Pay: $150K to $225K base salary per year (USD)
- Posted: 2026-09-10
- Apply by: 2026-10-25
- Apply: https://jobs.ashbyhq.com/astro-mechanica/3b529640-3be1-4b08-a7ba-8dd42d6895cd
- Page: https://www.1752.vc/careers/jobs/astro-mechanica-senior-thermal-systems-design-engineer/

## About the role

Generate CAD models, detailed engineering drawings, and apply appropriate GD&T Architect thermal systems and develop 1-D fluid network models to predict system behavior, transient responses, and sensitivities

## What they're looking for

- 5+ years hands-on experience in propulsion or similarly complex thermal environments
- Proficient in CAD modeling (Siemens NX), drawing generation, and GD&T
- Strong understanding of thermodynamics, heat transfer, and fluid behavior
- Experience designing and analyzing thermal systems using CFD and 1D network modeling tools
- Informed on instrumentation types and limitations, and ability to anchor models with test data
- Takes initiative for continuous improvement (not just completing assigned tasks)

Tags: Propulsion