Technical Support Engineer (Package Substrate) Bilingual in Korean

• Main Responsibilities

• 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 customerengagement.

• Guide BOM and substrate structure selection using LGIT technicalsolutions.

• Lead design reviews, TRA assessments, yield improvement, and production readiness.

• Coordinate between customer engineering and LGIT R&D, Process,Quality, and Manufacturing.

• 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).

Requirements

• 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.