Application Engineer

About Yinlun TDI LLC
Yinlun TDI LLC is a global leader in advanced thermal management solutions, delivering innovative, high-efficiency cooling technologies for the automotive, commercial truck, and off-highway markets. Our products are engineered to meet the increasingly complex thermal demands of both traditional and electrified platforms.

With sales and engineering operations across the United States and manufacturing facilities globally, Yinlun TDI LLC is ISO 9001, ISO 14001, and IATF 16949 certified, supporting OEM customers with world-class heat exchangers, HVAC systems, and integrated thermal solutions.

Position Summary
We are seeking a customer-facing Application Engineer to support new program acquisition and ongoing product development within our automotive thermal systems business.
This role serves as the primary technical interface between customers and our global engineering team, including headquarters in China. The position is responsible for translating customer requirements into engineering solutions and supporting programs from RFQ through production.
Key Responsibilities
Serve as the primary technical interface with customers, supporting new business acquisition and program development
Engage with OEM and Tier 1 customers to understand technical requirements and identify new opportunities
Lead RFQ technical reviews, develop proposals, and present engineering solutions
Analyze customer requirements and define performance, packaging, and functional criteria
Manage technical aspects of RFQ responses, including feasibility and engineering estimates
Support 2D/3D design development in collaboration with internal engineering teams
Lead and support engineering changes, cost reduction initiatives, and implementation activities
Support APQP processes, including DVP&R, DFMEA, and validation activities
Troubleshoot and resolve pre-production and post-production technical issues
Coordinate cross-functional teams to ensure program timing, validation, and successful launch
Monitor competitor activity and market trends to support business decisions
Qualifications
Bachelor’s degree in Engineering (Mechanical, Industrial, Aerospace, or related field)
Minimum 3 years of experience in automotive thermal systems or heat exchanger development
Experience working with OEM or Tier 1 customers in a customer-facing engineering role
Preferred Qualifications
Experience in EV thermal systems, battery cooling, HVAC, or heat pump systems
Familiarity with manufacturing processes such as plastic injection molding, aluminum casting, CAB brazing, or stamping
CAD experience (CATIA, NX/UG, SolidWorks, Creo/Pro-E)
Knowledge of APQP tools including FMEA, DVP&R, 8D, and PPAP
Strong problem-solving skills and ability to manage multiple projects
Benefits
Competitive salary and performance-based bonus
Comprehensive benefits package (medical, dental, vision, life insurance)
Short-term and long-term disability coverage
401(k) with company match
Paid vacation, sick time, holidays, and floating holidays
Career growth opportunities in a fast-paced, global environment
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