Remote Principal Fuel Systems Engineer (R3300) (Remote)

Founded in 2015, Shield AI is a venture-backed deep-tech company with the mission of protecting service members and civilians with intelligent systems. Its products include the V-BAT aircraft, Hivemind Enterprise, and the Hivemind Vision product lines. With nine offices and facilities across the U.Europe, the Middle East, and the Asia-Pacific, Shield AI's technology actively supports operations worldwide. For more information, visit Follow Shield AI on LinkedIn, X , Instagram , and YouTube .  Shield AI is seeking a Principal Fuel Systems Engineer to lead architecture, development, and validation of fuel systems for advanced AI-powered aircraft. In this role, you'll own the full lifecycle of fuel system design—from concept through flight testing—while mentoring others and driving technical excellence across our growing air vehicle portfolio. You'll tackle high-impact challenges: enabling efficient long-endurance flight, optimizing aircraft center of gravity, and developing robust, certifiable systems that perform flawlessly in extreme conditions. On-site or hybrid work is preferred; however, for highly qualified candidates, a remote arrangement may be considered with up to 25% travel. Architect end-to-end fuel systems including storage, transfer, venting, and pressurization for next-gen autonomous aircraft. Lead cross-functional integration between propulsion, structures, avionics, and thermal teams to ensure optimal system performance. Conduct system-level modeling and analysis to predict flow behavior, vapor suppression, slosh dynamics, and thermal effects. Define performance requirements and verification strategies for high-reliability components and assemblies. Lead design reviews, technical trade studies, and risk assessments for critical systems. Oversee supplier selection, qualification, and acceptance testing for pumps, valves, tanks, and sensors. perform root-cause analysis for system anomalies. Mentor engineers, establish best practices, and develop processes for system integration and testing. S. in Aerospace, Mechanical, or related engineering discipline.

12–15+ years of experience in aircraft fuel systems, aerospace fluids, or propulsion integration.

Demonstrated expertise with fuel system design, analysis, and certification for manned or unmanned aircraft.

Proficiency with analysis and modeling tools (ANSYS Fluent, OpenFOAM, MATLAB/Simulink) and CAD software (NX, CATIA, or SolidWorks).

Familiarity with FAA and MIL-STD certification requirements and validation testing.

For remote candidates - ability to travel up to 25%.

Experience with UAV, fighter, or ISR platform development. Active or previous security clearance. $Full-time regular employee offer package: Pay within range listed + Bonus + Benefits + Equity Temporary employee offer package: Pay within range listed above + temporary benefits package (applicable after 60 days of employment) Military fellows and part-time employees are not eligible for benefits. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, marital status, disability, gender identity or Veteran status. If you have a disability or special need that requires accommodation, please let us know.  We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. If you would like more information about how your data is processed, please contact us.