Seoul, South Korea
I build AI-powered products that move revenue at scale — from personalization engines to MarTech platforms to programmatic ad infrastructure. Over 18 years, I've shipped 0→1 platforms across e-commerce, gaming, adtech, and global content at Coupang, Wayfair, Unity, Blizzard, and Microsoft. My work sits at the intersection of machine learning, customer data, and growth — translating ambiguous business problems into clear product roadmaps that earn C-suite buy-in and deliver measurable outcomes. Most recently at Coupang, I led a 93-person cross-functional org (8 PMs, 5 data scientists, 80+ engineers) to build Korea's largest AI personalization platform — driving $22M in quarterly incremental GMV and a 20% relative CVR lift across 250M+ monthly sessions in Korea, Taiwan, and Singapore. Before that, at Wayfair I led MarTech, Identity, and Audience Platform for a $10M+ modernization — building the probabilistic identity graph and S2S signal infrastructure that powered all 1st- and 3rd-party targeting across a global ad ecosystem. At Unity, I owned the Header Bidding Platform supporting $1B+ in annual mobile ad revenue. What I bring to senior PM roles: → Deep ML & AI product experience: recommendation engines, real-time ranking, generative AI, multi-arm bandit experimentation → CDP & identity architecture: probabilistic identity graphs, 3rd-party signal strategy, cookie deprecation response → Growth & subscriptions: CVR optimization, retention, CLV, 0→1 acquisition and re-engagement platforms → Executive influence: C-suite roadmap alignment, cross-functional orgs of 50–90+ people, global market expansion I'm currently based in Seoul and actively exploring Director / VP PM opportunities globally — especially in AI, personalization, subscriptions growth, and MarTech. Open to roles in APAC, Europe, and the US (including remote). Let's connect if you're building something ambitious.
Led Coupang's AI-powered personalization platform across multiple international markets, driving significant incremental GMV and a 20% relative CVR lift through ML-powered personalization, generative AI, and MarTech infrastructure. • Launched 0→1 ML-driven product recommendation engine using 3rd-party channel signals, category affinity, and real-time purchase intent — directly contributing to significant quarterly incremental GMV growth. • Implemented generative AI recommendation system that dynamically surfaces contextually relevant products, improving discovery quality and downstream conversion at scale. • Owned full roadmap for personalized customer journeys across multiple international markets, integrating MarTech stack, CDP, CRM, and real-time ML ranking models. • Partnered with Data Science to deploy ML ranking and recommendation models delivering a 20% relative CVR improvement across external acquisition channels. • Built and scaled A/B and multi-arm bandit (MAB) experimentation frameworks to validate personalization hypotheses and accelerate growth iteration velocity. • Defined executive KPI dashboards tracking ranking quality, engagement, and full-funnel performance. • Drove alignment across Growth, Retail, Ads, and Data Platform — unifying cross-functional stakeholders on AI architecture, model adoption, and scalability roadmap.
Led teams with ownership over Wayfair CDP(Customer Data Platform) and MarTech Ads platform(Bidding, Feeds, Signals Platform), building a 0-1 product roadmap that drastically shifts ad spending and identity management, impacting Wayfair's wide search/social strategy. - Led a team of 5+ product managers across 5+ teams and 50+ engineers, data engineers, UX designers, and data scientists responsible for bidding, optimization, feeds, signals, and audience development. - Built baseline data store and models for probabilistic devices and identity graphs for all 1st and 3rd party targeting. - Spearheaded the development of a product management culture and infrastructure for the global marketing function, encompassing governance, go-to-market strategies, ecosystem management, agile methodology, system implementation, process optimization, and mentoring. - Collaborated with leadership, internal channel teams (brand, broadcast, streaming & social media, mobile, direct-to-consumer, affiliate, B2B, registry), and external channel partners to define platform requirements, focusing on brand enhancement, customer acquisition & retention, and upsell opportunities. - Pioneered an 8-figure program, securing C-level approval by presenting a comprehensive plan including the platform's vision, strategic alignment, architectural enhancements, migration to Google Cloud, integrating 100+ licensed and custom applications, a high-level 3-year roadmap, detailed budgets, and ROI projections. - Guided the global signals strategy to address the shift to the s2s signal model and 3rd party cookie deprecation. This impacted 10B+ events and helped drive a 3x increase in actionable ads signals to 3rd party partners(Meta, Google)
Led all Wayfair product initiatives around Search(SEM, Shopping, Text), brand (Social, Video, Influencer), and integrated (TV, OTT, CTV)marketing - Built a strategic product roadmap inclusive of marketing goals that allowed for a 50% increase in ROAS within six months of implementation - Improved overall recognition rate and reduced wasted ad spend by 30% within a year, driven by automation and reinforced learning. models - Built a cloud-based streaming feeds platform that allowed Wayfair to build custom feeds while reducing outages from 40 days to 2 hours a year. - Directed cross-functional teams (engineering, marketing, privacy, legal, product) and channel partners to adapt to compliance and engagement changes in response to Apple iOS 14.5 privacy release, effectively mitigating a forecasted 9-figure revenue loss of 50%.
- Lead the User Acquisition products within Unity Ads infrastructure - Generate over 1B+ in revenue focused on Mobile platform - Horizon plan to build the next generation of platforms for Unity - Built conversion models to improve CPI performance for Mobile Ads - Lead team of 5 PM to support Unity Ads Platform - Launch Header Bidding Platform for Unity , with new models to improve conversion
· Product lead for all data initiatives and pipeline for Blizzard Entertainment · Managed pipeline support all desktop and mobile games · Scaled organization from 1B events per hour to 4B events per hour · Owned strategy for building out near real-time process and long term analytics for all blizzard properties · Built custom pipeline strategy to support a 4M events per second strategy · Launch data infrastructure for WoW classic launch · Lead a team of 6 PM to support all of Blizzard data needs for 3-year cycle
• Managed multiple projects to ensure deadlines were met and tasks were completed in compliance with regulatory rules and internal guidelines • Work with Development, Operations, and Project Management to ensure development and delivery of products on time and manage expectations • Manage the product backlog, create an effective vision and provide timely stakeholder feedback on development iterations • Perform analyses to aide in decision making regarding feature improvements and new feature developments • Manage cross-functional projects by providing project leadership and daily management throughout the project from inception to delivery • Be the product knowledge expert in online space, platform partners, programmatic media, product positioning, execution and pricing
• Facebook Ad Platform and API expert , with successful launch of YP Facebook application • Owned a wide array of advertising products and platform features across either YP ad ecosystem, and continuously improve upon them in response to internal and external customer feedback. • Drive the development of new advertising product offerings in response to evolving market conditions, competition and client needs. • Improved operational effectiveness of current ad serving technologies and data systems conducting A/B test and multi-arm bandit testing • Product owner for new editorial system to support the rapid growth of new ad serving platform • Translate business needs and requirements into design concepts, functional specs and product use cases for a new editorial platform • Built from scratch new business and process technologies to improved automated editorial review while limiting impact to revenue • Built and deployed Hive and Hadoop queries that generated advertiser opportunity report for customers • Produced visual assets, such as ad banners and landing pages, to provide immediate and intuitive clarity around ads requirements and specifications for both stakeholders and engineers. • Created, established, and generated regular business analytics reporting and business dashboards
Building ypSearch Marketplace, the next generation paid search platform. A quick video that explains ypSearch Marketplace: https://vimeo.com/122986765 - Design Elastic Search and Ad Serving implementation for ypSM - Publisher API and platform integration with ypSM - Requirements and Product leadership for Editorial Tool Platform to support ypSM - Designed Dynamic Location Extension requirements for ypSM - Create requirements for Negative Location implementation for ypSM - Product Owner for Ad serving layer for ypSM