Technical Support Engineer

Serve as the on-site technical lead for advanced package substrate programs with Apple in the U.S., driving issue resolution and alignment with our teams in Korea to deliver successful mass production launches., * - Provide technical support for customer development programs (Mobile AiP, SiP, FC-CSP, RF).

• • Resolve technical issues and drive performance stabilization at the customer.
• • Identify and develop PoC opportunities through customer engagement.
• • Guide BOM and substrate structure selection using LGIT technical solutions.
• • Lead design reviews, TRA assessments, yield improvement, and production readiness.
• • Coordinate between customer engineering and LGIT R&D, Process, Quality, and Manufacturing.
• 2) Others
• • Conduct regular customer meetings and technical presentations.
• • Collect customer VOC and market intelligence to shape technology roadmaps.
• • Support technology promotions, exhibitions, and strategic customer engagements.
• • Promote advanced substrate technologies (Hybrid Stack-up, Fine Pattern, Cavity, Hyper Flex).

• • Bachelor’s degree or higher in Engineering, Materials Science, Chemistry, or a related field.
• • Bilingual in both English and Korean
• • • 10+ years in package substrate development, process or customer engineering, or technical marketing.
• • Proven record of leading substrate projects through mass production.
• • Experience supporting major semiconductor customers preferred.
• • Deep knowledge of substrate processes, materials, structures, and design rules.
• • Hands-on experience with ABF, ETS, Hybrid Stack-up, Cavity, Fine Pattern, and RF.
• • Ability to translate customer requirements into technical solutions.
• • Experience in NPI, yield improvement, and production transfer.
• • Strong customer relationship management skills.
• • Clear technical presentation and communication skills.
• • Project management and problem-solving capability.
• • MS Office (PowerPoint, Excel, Word).
• • Six Sigma Green Belt or equivalent preferred.
• • PMP or equivalent project management certification preferred.
• Travel:
• • On-site customer support with frequent customer engagement.
• • Frequent travel to customer sites within the U.S.
• • Periodic travel to Korea for engineering and business reviews.