As a Level 2 Thermal Engineer at Shield AI, you will own the design, analysis, and integration of aircraft avionics thermal management systems and electronics cooling.

Your responsibilities will include:

• Owning thermal solutions for unmanned aerial vehicle avionics including design, analysis, and test.
• Developing and validating analytical, numerical, and computational models for heat transfer and fluid flow using hand calculations and CFD tools such as FloEFD.
• Providing technical leadership in trade studies, system architecture decisions, and risk assessments.
• Driving test planning, instrumentation, and data analysis to correlate models with experimental results.
• Guiding cross-disciplinary teams in applying thermal/fluid fundamentals.
• Communicating technical findings clearly through design reviews, and written reports.

We're looking for someone with a strong background in mechanical engineering, aerospace engineering, or a related discipline, with a minimum of 2 years of professional experience in avionics or electronics thermal engineering.

The ideal candidate will have expertise in heat transfer (conduction, convection, radiation) and fluid mechanics, as well as a strong understanding of active and passive cooling solutions and their integration at component and system level.

If you're a motivated and detail-oriented individual with excellent communication skills, we'd love to hear from you!

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About the Role We are seeking an Engineering Director to lead the design and development of advanced, next-generation data center systems. This is a deeply technical, high ownership role that sits at the intersection of mechanical and electrical engineering, IT infrastructure, thermal modeling, and manufacturing.

Responsibilities Systems Design & Architecture

• Lead end-to-end mechanical and electrical design of modular data center systems, including structural enclosures, power distribution, cooling infrastructure, and IT hardware integration
• Define system architecture trade-offs across density, thermal performance, reliability, and cost
• Develop and own detailed design specifications, BOMs, and engineering drawings

IT Hardware Integration

• Architect rack-level and pod-level IT layouts for high-density GPU and CPU compute deployments
• Specify and validate server, networking, storage, and power hardware configurations in collaboration with hyperscale and neocloud customers
• Ensure designs meet evolving requirements for AI/ML workloads, including high power density (40–100+ kW per rack) and advanced cooling compatibility (liquid, immersion, rear-door)

Thermal & Power Modeling

• Build and validate CFD and thermal models to predict and optimize airflow, cooling performance, and PUE across a range of operating conditions
• Develop power distribution models covering UPS, PDU, busway, and generator integration
• Use simulation tools to iterate designs rapidly before physical prototyping

Manufacturing & Productization

• Partner with internal and contract manufacturers and suppliers to translate designs into manufacturable, scalable products
• Define DFM (Design for Manufacturability) and DFA (Design for Assembly) requirements
• Lead design reviews, tolerance analyses, and factory acceptance testing protocols
• Manage engineering change processes and maintain design documentation through the product lifecycle

Cross-Functional Leadership

• Collaborate with energy, controls, and software teams to integrate data center systems with Exowatt's P3 solar and storage platform
• Serve as a technical lead and mentor to junior engineers on the team
• Engage directly with customers and partners on design requirements, site adaptations, and deployment planning

What We're Looking For Required Qualifications

• 7+ years of engineering experience, with at least 4 years focused on manufacturing, design, and/or mission-critical infrastructure
• Deep expertise in at least two of the following: mechanical/structural systems, power distribution, thermal management, or IT hardware architecture
• Hands-on experience with thermal or power modeling tools (e.g., 6SigmaRoom, FloEFD, ANSYS, or equivalent)
• Experience taking designs from concept through manufacturing and deployment
• Excellent technical communication skills , able to write crisp specs, lead reviews, and explain trade-offs clearly

Preferred Qualifications

• Experience with modular or prefabricated products at large scale
• Familiarity with high-density liquid cooling architectures (direct liquid cooling, rear-door heat exchangers, immersion)
• Background working with hyperscale, colocation, or neocloud customers
• Exposure to renewable energy integration or microgrid/behind-the-meter power systems
• Strong working knowledge of data center standards (TIA-942, ASHRAE, Uptime Institute tier classifications)
• Product lifecycle management (PLM) expertise
• 2+ years of experience with Nvidia and other compute platforms
• Experience in a fast-paced startup or hardware product company

Additional Information What We Offer

• Competitive salary and equity options
• Comprehensive benefits package, including health, dental, and retirement plans
• A dynamic work environment that fosters creativity and innovation
• Opportunities for professional growth and development in a rapidly evolving industry
• Relocation assistance

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