• Led five-person team to manage sales and revenue of Li-ion battery products generated up to $0.85B revenue per year while increasing sales by +70%.• Spearheaded customer negotiations to improve contractual terms with the client during critical raw material cost hikes to improve product profitability by +17%.• Orchestrated product cost analysis to pinpoint actions for improvement and directed 20+ change implementations to optimize the supply chain and product design, improving profitability by 20+%p.• Initiated and facilitated cross-company joint development programs to pioneer the designing and industrialization of innovative Cell-to-Pack battery products, creating $4B+ business opportunity.

• Devised and negotiated innovative contractual terms to stabilize the customer order fluctuation and optimize the production & delivery process, achieving 150+% revenue to the long-term project target.• Conducted analysis and reduced costs with major part change management, through customer negotiation and internal facilitation, to improve the product profitability by 15+%.• Negotiated compensation terms for client contract breaches, achieved 200+% to target collection.• Pioneered development of high-nickel battery chemistry by facilitating joint development between companies to create a solution for major carmakers, breaking ground for a $2.5B+ project.

• Managed the battery revenue for Plug-in Hybrid cars, increasing sales by +15%.• Oversaw the battery product development schedule for a British EV, delivered product 100% on time.• Developed company-wide target for short & long-term revenue, profits, and working capital and troubleshooted sales teams to accomplish 99% target achievement ratio and reduced -12% inventory.

• Developed a promotional campaign for the service launch of 'V LIVE,' a live streaming platform for K-pop stars and celebrities, enhancing fan engagement and platform visibility.

• Alto & Tenor Saxophone player for the Navy Band, delivered 200+ performances.• Band Squad Leader (Nov. 2012 ~ Feb. 2013)