Job Description

Founded in 2015, 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 and V-BAT and X-BAT aircraft. 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 a passionate and innovative thermal engineer looking to help develop the next generation VTOL strike aircraft? Are you eager to make a positive difference in the world? Do you want to work alongside mission-driven and values-focused teammates? Shield AI is just the place for you!

As the Principal Aircraft Thermal Engineer you will lead the charge in solving the most challenging thermal problems on the XBAT aircraft program, including hot exhaust gas management and aircraft-level thermal environments and characterization.

This role is best suited for an engineer who thrives on first-principles problem solving, can set technical direction for ambiguous, open-ended challenges, and bridges technical disciplines with clear communication and leadership. You will shape designs, guide engineering teams, and deliver robust thermal solutions that meet mission-critical aerospace requirements.

What you'll do:

Lead thermal analysis and characterization efforts for unmanned aerial vehicle aircraft-level thermal systems.

Architect and validate analytical, numerical, and computational models for heat transfer and fluid flow using hand calculations, finite difference methods, and CFD tools such as FloEFD.

Provide leadership in trade studies, system architecture decisions, requirements generation, and technical risk assessments.

Define and oversee test planning, instrumentation, and data analysis to correlate models with experimental results.

Mentor and guide cross-disciplinary teams in applying thermal/fluid fundamentals.

Communicate technical findings through executive-level briefings, design reviews, and technical reports.

Proactively identify program risks, propose solutions, and influence aircraft thermal design.

Represent Shield AI in technical reviews, proposals, and customer interactions.

Required qualifications:

B.S. in Mechanical Engineering, Aerospace Engineering, or related discipline.

Minimum 12 years of professional experience in avionics or electronics thermal engineering.

Deep expertise in heat transfer (conduction, convection, radiation) and fluid mechanics.

Advanced understanding of active and passive cooling solutions and their integration at the component and system level.

Advanced knowledge of thermal management techniques for aircraft bays, engine bays, and hot surfaces.

Proficiency with thermal analysis and CFD tools (e.g., FloEFD, STAR-CCM+).

Proficiency with CAD design tools such as NX, SolidWorks, or similar.

Demonstrated ability to apply first-principles reasoning to complex engineering problems.

Ability to learn new and cutting edge materials knowledge and thermal management techniques from a variety of sources (technical papers, text books, etc.) and apply it to the development of advanced thermal management design.

Strong communication and leadership skills, with experience presenting to executives and customers.

You have a demonstrated record of working hard, being a trustworthy teammate, holding yourself and others to high standards, and being kind to others

Ability to obtain a S//SAR level security clearance desired.

Preferred qualifications:

M.S. or Ph.D. in a relevant engineering discipline.

Extensive experience with high-altitude aircraft thermal management, analysis, and design.

Familiarity with aircraft integration constraints (power, weight, volume, maintainability, safety).

Hands-on experience with thermal and fluid system testing, instrumentation, and validation.

Knowledge of materials and manufacturing methods relevant to aerospace thermal management.

Experience guiding trade studies, proposals, and customer interactions in aerospace or defense programs.

Background in multi-disciplinary system integration, spanning avionics, fluid systems, and systems engineering.

Principal Engineer, Aircraft Thermal (R4353) - Shield AI

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