
Principal Engineer, Fluid & Thermal Systems (R5620)
Shield AI
Seattle, United States · Full time employee · Mechanical, Mechatronics & Actuation
Job Description: Are you an experienced and innovative Fluid & Thermal Systems Engineer looking to help shape the future of AI and robotics technology?
Apply on Shield AI’s careers page- Company
- Shield AI
- Location
- Seattle, United States
- Workplace
- On-site
- Type
- Full time employee
- Level
- Staff / Principal
- Specialism
- Mechanical, Mechatronics & Actuation
- Team
- X-BAT Engineering - Mechanical
- Salary
- $266K–$400K
- Posted
- 11 September 2026
About the role
Shield AI is a venture-backed defense-tech company with the mission of protecting service members and civilians with intelligent systems. Its products include Hivemind autonomy software, V-BAT and X-BAT aircraft, and Aechelon simulation and synthetic reality technologies. With offices and facilities across the U.S., Europe, the Middle East, and Asia-Pacific, Shield AI’s technology actively supports operations worldwide. For more information, visit www.shield.ai. Follow Shield AI on LinkedIn, X, Instagram, and YouTube. Job Description: Are you an experienced and innovative Fluid & Thermal Systems Engineer looking to help shape the future of AI and robotics technology? Are you eager to make a meaningful impact on cutting-edge products that matter? Do you thrive in a fast-paced, mission-driven environment alongside highly motivated and values-focused teammates? Shield AI is the perfect place for you! As a Principal Fluid & Thermal Systems Engineer at Shield AI, you will lead the design, development, and optimization of fluid and thermal systems for our advanced autonomous UAVs and ground systems. Your expertise fluid & thermal system design will drive innovation, prototyping, testing, and the successful integration of solutions that operate reliably in challenging environments. This role requires technical leadership, collaboration with cross-functional teams, and an unwavering commitment to delivering excellence from concept to production.