• Spearheaded over 20 PM consulting projects for enterprise-scale ($1B/yr +) clients, maintaining an impressive project success rate of 85% by outperforming the clients’ initial KPI expectation.
• Executed multiple concurrent initiatives by managing agile teams of 30+ junior PMs, engineers, and designers to collaborate cross-functionally for each project, providing daily mentorship and supervision.

[eBay Korea (GMarket)] Vendor Ads Platform

• Brought 518% increase in ad revenue for the Vendor Ad platform, leading a UX & functionality enhancement initiative with a team of junior PMs, engineers, and designers.
• Achieved 182% increase in acquisition conversion rate and a notable 35% decrease in monthly churn rate by implementing an intuitive UI/UX for individual vendors, extensively interviewing customers to verify the efficacy.
• Decreased ad costs by 17% and increased CTR by 9% by enhancing the ad targeting AI model and RTB (Real-Time Bidding) feature to optimize cost efficiency for vendors.

[Hyundai D.C.] B2B SaaS (TOP 10 construction company in S. Korea, subsidiary of Hyundai Group)

• Reduced 90% of compliance management overhead costs through building a compliance platform, collaborating with a team of junior PMs, UX designers and engineers.
• Implemented AI/ML features that automatically assess and flag compliance risks, identifying over 20 major instances within the first three months.
• Closely worked with senior engineers from the client company to integrate product APIs into the client’s ERP system.

[Hana Bank] Mobile UX Renewal (1 of 4 major consumer banks in S. Korea, occupying 40% of market share)

• Spearheaded the massive 967% improvements in the ‘online account opening’ conversion rate.
• Led a team of junior PMs and data analysts to perform comprehensive funnel data analysis, identifying over 150 UX weak-points causing unusually high user drop-out rate.
• Shipped the product to reach 15M+ customers, coordinating with UX designers and engineers to conduct iterative A/B tests and implement gradual release based on cohort customer feedback

[Hana Bank] Loan Approval AI/ML Feature

• Processed over 3.5M loan applications (5 months) through proposing, building, and integrating a ‘low credit personal loan pre-approval’ AI/ML feature into the consumer mobile banking app.
• Led a team of 12 AI/ML engineers and data scientists to develop the feature, leveraging customer financial data.
• Achieved 23% increase in the pre-approval rate by integrating 4 of third-party credit assessment API providers.

[Kyobo Life Insurance] New API Product Venture (TOP 3 insurance firm in S. Korea, ~ $15B/yr in revenue)

• Acquired 530,000 customers by conceptualizing and building a ‘life insurance quote comparison’ platform.
• Integrated LLM based AI chatbot features, facilitating AI/ML engineers and data scientists to construct robust ETL data pipelines to train the chatbot.
• Negotiated API access with 7 major insurance firms, extensively collaborating with our team of engineers and UX designers to streamline varying API structures and unify as a seamless, whole product package.

[eBay Korea (GMarket)] Travel E-Commerce Recommendations AI

• Created an exceptional 357% surge in ads Click Through Rate (CTR) by collaborating with a team of technical PM and data science engineers to adjust optimal timing and frequency for cross/upsell notifications.
• Improved the Customer Lifetime Value (CLTV) by 21% through optimizing cross-sell/upsell recommendations AI/ML model for travel/booking products.

[Hyundai D.C.] On-Demand Labor Matching

• Initiated and built the ‘On-demand Construction Labor Matching’ double-sided platform from 0-to-1, generating $1.5M revenue in the first two years, and later incorporated as a subsidiary company (Works Mate, GADA) of HDC.
• Trained and mentored 5 senior PMs from the client company to take over the role as the founder and the CEO of the new product venture, successfully growing and securing VC funding with over $20M in valuation.
• Oversaw the entire product management cycle of the launch and the growth of the product, setting the company vision and product roadmaps while directing a cross-functional team of associate PMs, engineers, and designers.

+ Spearheaded a variety of cross-functional project consultations in similar scope for enterprise-level clients, such as KT (Telecommunication), Nongshim (F&B), Hyundai Motor Company (EV, Mobility), Lotte Engineering & Construction (Construction), Hyundai Development Company (Construction & Hospitality), and numerous others.