Technical Support Engineer (Package Substrate) Bilingual in Korean

1) 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.

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).

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.