Thermal/Mechanical Engineer (AI Hardware)

Location: On-site in San Jose, California, United States

Company

hirify.global develops integrated chips, racks, software, and manufacturing systems for high-throughput, low-latency AI inference.

What you will do

• Lead the in-house design and optimization of direct-to-chip cold plate modules.
• Design thermal management systems for high-performance data center products, including water-cooling solutions and advanced cooling concepts.
• Develop internal manifolds, quick disconnects, Coolant Distribution Units, heat exchangers, and other components for high-power processors.
• Run liquid thermal simulations to predict and analyze heat exchanger performance.
• Oversee testing and validation for thermal performance, reliability, and efficiency, resolving issues identified during testing.
• Document design specifications, simulation results, testing reports, and collaborate with mechanical engineers, electrical systems engineers, and vendors.

Requirements

• Bachelor’s degree in Mechanical Engineering, Thermal Engineering, or a related field.
• Minimum 5 years of thermal and mechanical engineering experience focused on water cooling and advanced thermal management.
• Expertise in direct-to-processor cooling systems, cold plates, internal manifolds, quick disconnects, CDUs, and heat exchangers.
• Experience with mechanical design, fabrication, assembly, tolerances, GD&T, and mechanical drawings.
• Proficiency with mechanical CAD tools such as NX, Creo, CATIA, or similar.
• Experience with Fluent or comparable thermal simulation tools, TIMs, heat sink designs, and advanced cooling technologies.

Nice to have

• Advanced degrees or certifications in thermal management or a related field.
• Experience with phase-change cooling and other cutting-edge thermal management concepts.

Culture & Benefits

• Fully in-person work in San Jose, with cross-disciplinary collaboration between engineering and research.
• Medical, dental, and vision plans with substantial premium coverage.
• $500 monthly credit for waiving medical benefits.
• Relocation support for candidates moving to San Jose and a $2,000 monthly housing subsidy for those living within walking distance of the office.
• Wellness benefits, daily office lunch and dinner, and an ROI-justified unlimited compute budget.