Yoon (Jay) Lee
Staff Solutions Architect | Ad Tech
About Me
Yoon (Jay) Lee is a seasoned Staff Solutions Architect with a solid foundation in technical design, cross-functional collaboration, and product management, honed over a decade of diverse experience in the advertising industry. Holding an MS in Computer Science and a BS in Industrial Engineering from the Georgia Institute of Technology, Yoon combines a unique blend of analytical rigor, creative problem-solving, and strategic insight. His expertise drives revenue-focused product decisions that bridge innovation with measurable business impact.
Experience
Staff Solutions Architect | Ad Tech
Yoon Lee is the Senior Solutions Architect at TWC Advertising, with extensive experience in building scalable ad platforms and ad SDKs for web and mobile. He specializes in integrating monetization partners, enriching ad calls to maximize CPM, and implementing efficient programmatic and direct ad solutions. His data-driven designs have enhanced user experiences and directly increased annual ad revenue by over $30 million. He works closely with both the product and engineering teams to define strategic roadmaps, align technical solutions with business objectives, and drive innovation in advertising technology.
Key Achievements:
- Programmatic Bid Enrichment:Designed a delivery system to translate all first party user/contextual segments from disparate systems into OpenRTB standards to enrich signals to our bidders. CPM's increased at an average of 10% across all platforms.
- Dynamic Floor Module:Designed and implemented a dynamic floor system that increases the floor prices of different slots depending on the lifetime value of the user along with other contextual signals. CPM's increased at an average of 15-20% and the fill rate did not dip.
- Mobile Ads SDK:Designed and implemented a proprietary mobile ads SDK to decouple the ad stack from the flagship applications. The Ads SDK gave better flexibility and enabled independent updates and feature rollouts without affecting the core application. Reduced time to first ad render by 1.5 seconds and increased average impressions per page view by over 7%.
Solutions Architect (Watson Advertising)
Yoon Lee was the solutions architect for all of Watson Advertising. He oversaw the technical vision of the group and guided each sub team (5) in their technical architecture. He defined the framework, platform, and technical stack to align with both functional and non-functional requirements, bridging the gap between project plan and technical implementation.
Key Achievements:
- Ads Platform:Architected The Weather Companies Ad Platform comprising of Ad Builder, Ad SDK and Ad Metrics. Created a single platform to build all dynamic creatives, a Web Ads SDK to modularize header bidding and GAM integration, and an ad metric dashboard to consolidate disparate connections.
- CDP Implementation & AdTech Integration:Architected CDP implementation and integration with current ad partners and ad stack. Developed 1st party custom segment activation pipeline increasing per ad unit CPM by 30% across the board. Created anonymized ID strategy for advertising that increased pure profits by $18 million per year.
- Cross-Cloud Migration:Migrated different components of our Watson Advertising Accelerator platform to improve efficiency and cost. Cloud efficiency and migration saved ~$250k per year.
Advisory Software Engineer / Engineering Lead
Yoon Lee led a team of 6 software engineers and provided guidance to both strategic leadership and technical teams. All SaaS offerings comply with GDPR and CCPA and go through STRIDE threat modeling.
Key Achievements:
- Watson Advertising Contextual:Led a team of engineers to create an E2E advertising pipeline for creatives based on contextual signals. Collaborated with cross-disciplinary AI organizations to develop a common IAB (Interactive Advertising Bureau) contextual library used now beyond our team. CTR (Click through rate) increased 43% compared to unoptimized programmatic ads.
Staff Software Engineer
Yoon Lee was a staff software engineer for Watson Advertising products. He defined, authored, and developed application architectures for 3 SaaS offerings.
Key Achievements:
- Watson Advertising Builder:Architected and implemented an AI advertisement bot building SaaS that was featured in CES 2019 and released as a public offering in July 2019. Implemented "State of the Art" NLP/NLG algorithm that can consistently scrape and generate a FAQ corpus from websites, optimizing corpus generation and ingestion. Enabled a passive revenue pipeline that generates $250k per ad campaign. Created COVID-19 IBM chatbot on weather.com using Watson Ads Builder, providing up-to-date accurate COVID data from the CDC for weather.com users.
- IBM Advertising Accelerator/Insights:Architected and implemented the Accelerator dashboarding application for users to access their Accelerator Insights. Led development team to MVP completion in 8 weeks. Designed unstructured data flow model for 3rd party insights.
- Watson Advertising:Developed conversational Watson Ad units creating over $3 million in combined revenue per year. Improved existing platform for current Watson Ads campaigns. Reduced production deployment timeline by 5x and implemented automated CI/CD pipelines. Improved performance of backend systems and automated campaign creation components.
Senior Consultant
Senior Software Engineer / Tech Lead
Key Achievements:
- Citibank – NextGen:
- Developed microservices for Citi’s NextGen platform, servicing over 5000 unique high priority clients.
- Created API definitions and integration documentations.
- Developed mobile application features for Citi’s NextGen Android application.
- Primary liaison between IBM and Citi’s client relationship.
- Led daily scrums, managed e2e product delivery and effectively engaged stakeholders.
- Citibank – Innovation Lab:
- Managed the Citi dev-ops team and led pipeline configuration efforts.
- Created multifaceted development environments and CICD pipelines for innovation products.
- Developed Alexa skills, and IFTTT recipes for Citi’s Account Snapshot features.
Consultant
Business Analyst / QA Analyst
Key Achievements:
- Citibank – Project Brave (First Financial Apple Watch Application):
- Developed user stories and process flows for Citi’s iOS Mobile and Apple Watch application.
- Optimized testing efforts and presented an organized and structed way to acquire user data necessary for testing.
- Managed daily scrum meeting and resolved functional blockers.
Education
Master of Science in Computer Science | Interactive Intelligence
Georgia Institute of Technology
Bachelor of Science in Industrial and Systems Engineering
Georgia Institute of Technology