Customer Quality Engineer (CQE) role requiring fluent Korean to manage quality liaison with Korean battery customers. Responsibilities: processing customer complaints in Korean, conducting on-site audits with Korean clients, generating dual-language Chinese-Korean quality reports, and overseeing complaint closure and defect prevention. Requires a bachelor's in materials/chemistry/quality, 2+ years CQE experience, and mastery of IATF16949; lithium-ion / new-energy background preferred.