Product Engineer (TPM_Bilingual Mandarin and English)

Sanhua International•San Jose, CA

About The Position

Sanhua is seeking a bilingual Mandarin- and English-speaking Technical Program Manager/Product Manager for its West Coast office. The role supports OEM and Tier 1 customers as their primary technical contact and helps develop thermal management and HVAC components for EV, PHEV, and AV applications. Products include refrigerant valves (SOVs, EXVs, and CVs), refrigerant heat exchangers (chillers and liquid-cooled condensers), electric coolant and oil pumps, and battery cold plates. The Product Engineer works closely with global R&D, engineering, manufacturing, and testing teams to deliver high-quality products. The position includes customer-facing technical support, engineering coordination, product and system development, and support for launches and value engineering. Travel is required as needed.

Requirements

  • Bachelor’s or Master’s degree in Mechanical or Electrical Engineering, specializing in heat transfer, thermodynamics, HVAC&R, and fluid mechanics.
  • Must speak Mandarin.
  • 0–3 years of experience in thermal management for EV, PHEV, or AV applications; OEM or Tier 1 supplier experience is preferred.
  • Hands-on experience with refrigerant and coolant heat exchangers, sensors, valves, and pumps.
  • Strong understanding of refrigerant-based, coolant-based, and air-cooled systems, as well as injection-molded, brazed/welded/cast components and high-voltage products.
  • Working knowledge of automotive system design, packaging, and assembly requirements.
  • Excellent communication and problem-solving skills, with the ability to work with global, cross-functional teams.
  • Open-mindedness toward new ideas and perspectives, different opinions, and change, along with willingness to learn from others.
  • Willingness to travel as required.

Nice To Haves

  • Experience supporting NPI, product launches, supplier coordination, and cross-functional engineering teams.
  • Experience in plant operations and vehicle or program launches.

Responsibilities

  • Serve as the key technical interface for OEM and Tier 1 customers, supporting Sanhua’s business and product lines.
  • Meet regularly with customer engineering and product teams to resolve technical, packaging, production, supply chain, and quality issues.
  • Analyze product requirements and lead engineering activities, concept design, compliance matrix creation, and RFQ proposal reports.
  • Apply understanding of thermal management systems, including refrigerant, coolant, and oil loops.
  • Apply knowledge of manufacturing processes such as casting, forging, brazing, machining, and injection molding to product development.
  • Coordinate development of CAD models and 2D drawings, and direct CFD, FEA, and optimization simulations to support customer programs.
  • Support HVAC and thermal system design and development, including component integration, testing, simulation, and system engineering.
  • Track industry trends and work with the global R&D team to develop new products and improve existing products.
  • Lead discussions with manufacturing, process engineering, service, packaging, and supply chain teams to support product development and VA/VE activities.
  • Benchmark competitive thermal components and systems to quantify functional targets and develop engineering specifications.
  • Demonstrate ownership and self-motivation, take proactive action, and communicate effectively to coordinate cross-functional teams.
  • Develop technical documentation for existing and new products, including design specifications, manufacturing guidelines, and product catalogs.
  • Represent Sanhua at industry conferences and symposiums, contributing to technical workshops, publications, and paper reviews.
  • Travel as required.
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