Kevinyang

Customer Quality Engineer

Crystal Group • Full time

Aug 2025 - Dec 2025 • 4 mos

- Served as primary technical interface for Apple's premium customer account, managing product reliability verification and testing requirements - Led rapid response and root cause analysis for reliability testing problems, designed technical solutions and drove verification completion - Managed full customer technical issue lifecycle: problem identification → root cause analysis → improvement planning → customer verification → closure - Coordinated cross-functional resources (engineering, design, quality teams) to ensure technical solution feasibility and timely delivery - Produced high-quality technical reports and failure analysis documentation to support customer decision-making and build trust - Key achievement: Identified and resolved fixture-product mismatch issue in Apple Watch testing, eliminating yield loss and earning customer recognition

Quality Engineer

Medicals • Full time

Nov 2023 - Feb 2025 • 1 yr 3 mos

- Led full-cycle quality delivery of medical treatment table from R&D to mass production, including product definition, process design, and production verification - Conducted supplier evaluation and on-site capability assessment to ensure manufacturing processes and quality standards met product requirements - Established product quality standards, inspection specifications, and quality control procedures; drove continuous improvement from initial production to stable stage - Managed critical customer complaint (plastic coating crack issue): performed root cause analysis, coordinated design modifications, supplier mold optimization, and multi-batch validation - Directed assembly and testing quality control, developed SOPs, and trained production teams for consistency - Key achievement: Resolved coating crack problem through design-supplier-production collaboration, improved product yield by 5%, secured customer orders (50 units initial + 255 units bulk)