market, optimizing brand and performance ads on platforms such as Google, Meta, Apple Search Ads, Line, and TikTok. Optimized app download ads on Meta, UAC, Apple Search Ads, and TikTok by improving audience segmentation, resulting in a 30% YoY decrease in CPA. Proficient in using AppsFlyer for app data analysis (DAU/MAU/retention rate), establishing RT audiences, and optimizing in-app events. Managed the MGM Referral Program, planning and executing member referral activities to lower overall new customer acquisition costs. Vpon AI Big Data Group , JanSep 2023 Campaign Manager Working at a big data