Shield AI
Principal Engineer, Fluid & Thermal Systems (R5620)
$266K–$400K
Seattle, Washington +1 · On-site · Principal · Full-time · Posted Sep 11, 2026
- Location
- Seattle, Washington
Dallas, Texas - Experience
- Minimum 15+ years in Fluid or Thermal System design.
- Education
- B.S. or advanced degree in Mechanical, Aerospace, or related Engineering discipline.
About the job
Leads the design, analysis, testing, and integration of fluid and thermal systems for autonomous aircraft and ground platforms, from concept through production.
What you'll do
- Own fluid and thermal system design and analysis, including simulations and innovative thermal solutions.
- Plan and conduct testing, validation, data acquisition, and verification against requirements.
- Lead cross-functional integration, mentor engineers, and manage suppliers and component sourcing.
What they ask for
- Bachelor’s or advanced degree in Mechanical, Aerospace, or a related Engineering discipline.
- Deep understanding of heat transfer, fluid dynamics, thermodynamics, and system-level thermal management.
- Experience with system models in commercial tools, custom models in Excel or programming languages, fluid and thermal system testing, and 3D CAD.
- Ability to own and deliver projects with minimal oversight; experience in supplier management and COTS component sourcing.
Nice to have
- Aircraft fluid and thermal system design, analysis, manufacture, and test; familiarity with effects on aircraft performance.
- Startup or R&D experience and knowledge of aerospace or defense environmental standards and certification processes.
Pay
USD 266,000–400,000 per-year-salary (base salary)
Tools
MATLAB Simscape, Amesim, Excel, MATLAB, Python, Siemens NX
Model-written summary · the original posting is authoritative