Director (Head) of Data & AI Department - Smilegate Inc. - Bundang, Korea
(2025-01)
- Restructuring the organization into a business-aligned matrix framework, embedding operational KPIs into development targets to foster proactive cross-functional collaboration and drive business goals.
- Establishing a long-term data roadmap by standardizing fragmented core BI metrics across various game titles, while building advanced AI infrastructure including real-time anomaly detection and Text-to-SQL self-service platforms.
- Leading the productization of user-centric AI solutions (AI translation, community sentiment analysis, QA automation, and MCP-based knowledge management) to optimize operational processes and reduce resource overhead.
- Supervising overall project execution and team management by matching individual strengths with strategic leadership opportunities, successfully enhancing visibility, team satisfaction, and underperformer capabilities.
Senior Business Relationship Manager & Lead of Data Management Team, Business Technology Solutions - Abbvie GK. - Tokyo, Japan
(2024-05 - 2025-01)
- Defined commercial data schemes from local external vendors (Veeva CRM, IQVIA, M3, etc.), planned aggregation logic for datasets on core-ontology, and supervised data integrity by conducting regular data quality checks.
- Managed the migration and development of over 100 BI dashboards from QlikSense to the Palantir platform, including functional testing and UAT with various global development teams.
- Clarified the team's objectives and encouraged team members (data managers and engineers) to take ownership and actively drive efforts toward achieving those objectives.
Data Director & Lead of Ad Data Utilization Team, Marketing Solution Company - LINE YAHOO Corporation - Tokyo, Japan
(2023-10 - 2024-04)
- Led the development of machine learning-based and rule-based audience segments for targeting menus across LINE and YAHOO display ads in Japan, Taiwan, and Thailand.
- Completed the data linkage project with YAHOO advertising for an integrated advertising platform and established common data usage standards within advertising.
- Initiated and assisted the company-wide data director system and process establishment. (Continuation of existing LINE Corp. projects.)
Deputy General Manager of Ad Data Department / Lead of Persona Targeting TF & Data Owner of LINE Ads - LINE Corporation - Tokyo, Japan
(2019-09 - 2023-09)
- Provided direction for data management and utilization, approved use cases in collaboration with PIA and the legal team, and improved data operation features with the LINE data center.
- Developed 500+ audience segments, boosting behavior and targeting data usage rates from 5% up to 30% on the LINE Ads Platform.
- Planned and spearheaded Tableau and Ad Creative reports for sales and business teams.
Senior Data Product Manager, Data Science Department - LINE Corporation - Tokyo, Japan
(2019-01 - 2023-09)
- Streamlined marketing analysis for LINE games and family services, resulting in notable cost reductions and heightened planning efficiency.
- Led the development of specifications for both backend and frontend aspects of TVCM, external, and LINE internal marketing analysis and management tools.
Ad SDK Product Manager, Ads Platform Management Division - LINE Corporation - Tokyo, Japan
(2018-02 - 2018-12)
- Defined Ad SDK specifications and drove its development for the launch of the proprietary platform, LINE Platform.
- Directed DFP activities for Taiwan and Thailand markets.
- Executed highly efficient development processes, including managing PM roles, sustaining ads QA, and establishing external ad SDK implementation processes to provide technically superior and stable products.
Marketing Development Planner and Marketer, Game Marketing Team - LINE Corporation - Tokyo, Japan
(2014-09 - 2018-12)
- Strategized online promotional methods for marketers, doubling sales results from marketing expenses by planning and constructing online promotion tools (preregistration, official site, share events, and in-game promotions).
- Increased newly registered users by 8% across all games by providing advertising creative analysis results; total sales through LINE's internal advertising channels increased by 14% due to operational improvements by the game's internal operation team (located in Fukuoka).
- Directed log collection for data integration with marketing tracking companies (such as TUNES and Adjust) and external game developers.
Lead of Ad Product Service Planning Team - Ad Latte, Inc. - Seoul, Korea
(2012-08 - 2014-07)
- Headed the Ad service planning team, comprising planners, designers, and a Japanese marketer, successfully launching and maintaining the app's top-ranking position for three consecutive months in Japan's App Store.
- Planned the development of iOS/Android apps and offerwall advertising formats.
Marketer for Japan and UK Regions - Viscuit Creative, Inc. - Seoul, Korea
(2012-03 - 2012-08)
- Contributed to the planning and development of English education apps for children, including titles such as Jack & the Beanstalk, Picture Card, Collins My First Dictionary, and Collins Picture Card by HarperCollins.
- Designed and executed marketing strategies in Japan and the UK, emphasizing review marketing and press releases to promote educational apps.
Operator at the International Call Center - DOCOMO Support, Inc. - Tokyo, Japan
(2011-11 - 2012-01)
- Translated Docomo operation manuals and provided customer support to users in English, Japanese, and Korean via phone.
Instructor of Korean Language - M.I.L Language Center - Tokyo, Japan
(2007-03 - 2009-12)
Japanese Teacher - Gae Won Middle School
(2004-09 - 2007-03)
Japanese Teacher - Kyung Dong High School
(2003-03 - 2003-12)
