• Spearheaded the creation of a high-fidelity Figma interactive prototype, driving the initial design phase of the Weverse (3.0) project, setting a new standard for user interaction and engagement.• Orchestrated agile usability testing with Maze UT, identifying critical user experience improvements, which led to enhanced onboarding, community membership, and feature adoption.• Led the development of a comprehensive design system, establishing common UX guidelines andinteraction definitions, which streamlined design processes and improved product consistency across platforms.• 20% improvement in the engagement rate of Weverse Magazine (CMS) service through statusanalysis and improvement initiatives using Google Analytics 4

• Led the strategic development and successful launch of Weverse Account SDK, significantlyenhancing account service functionality and user verification processes, resulting in a streamlined userexperience for 8 million users.• Orchestrated the design and launch of Weverse Albums app, leveraging innovative UI design and hi-fiprototyping in collaboration with iOS and Android development teams, achieving a 20% sales increasefor HYBE's artists.• Managed product lifecycle for platform solutions including Authentication, Account, Coupon, Voting,Survey, Admin, Magazine CMS tool, and Offline fan-event management, driving operational efficienciesand enhancing user engagement.

• Spearheaded a comprehensive redesign of accounts, game launchers, social systems, and billing,enhancing user experience and operational efficiency across Western, European, and Southeast Asianregions, as measured by a significant reduction in user complaints by implementing user-centric design principles.• Conducted extensive UX research and AB tests to refine account sign-up processes, achieving a sign-up completion rate increase to over 40%, as measured by user engagement metrics, by developing and prototyping user-centered designs despite complex user inputs.• Directed an account recovery self-service initiative, slashing 15,000 account-related manual customer service tasks by 90%, as measured by operational efficiency metrics, by streamlining therecovery process.

• Responsible for managing Portal and Platform projects regarding Billing, Passport, Back-office, and integrated login module• Created product requirements, wireframes, and specifications for new features • Collaborated with cross-functional teams and stakeholders for product planning and development• Coordinated feature releases and tracked progress

• Responsible for managing website development project and issues in publishing games on Daum Game.

• Supervised the Web service planning part of the Live web development team • Responsible for managing projects and all the issues in terms of game website development, design, promotion, membership, payment, security, and privacy• Led Game-specific Social Network services Erinnon• Led Promotions for the first time package item buyers closely working with data analysis

• Performed to plan photo contests, event, and collaborate promotions• Improved campaigns based on data-driven analysis and usability. • Managed Face recognition feature and promotions for photo services• Facilitated to provide photo API for building brand-new social network services at KTH