Lee Wang Email & Phone Number

Menlo Park, Ca, Us

● Implementeddaily spend limit for advertiser accounts promoting malicious ad creatives in collaboration with various cross functional teams like integrity and ads bidding infra, stopping $75,000,000 of lost revenue anually ● Creatednewadsdelivery volatility and blockage recommendations in internal ads debugging tool to automate triaging of issues by support specialists and engineering, improving first triage accuracy from 30% to 70% and decreasing total ticket resolution time from 7 to 3 days ● Reducedstorage for critical ads pacing database log table by 9TB, increasing log retention from 20 to 30 days and saving close to $200,000 annually in storage costs ● Implementedtools for debugging issues for ads within an account and across accounts which are used extensively daily by support specialists, reducing oncall ticket volume to engineering by 30% ● Fixedlong-standing issue for businesses with credit line not having an internal daily spend limit set, saving around $5,000,000 annually

San Francisco, California, Us

- Supervised a team of three engineers in successfully migrating the careers website database from NoSQL to MySQL, yielding a 30% enhancement in system reliability and a 5TB reduction in data storage requirements- Mentored two interns for creating a new service to retrieve and display employee competencies, reducing search times by 40% and integrated with three other critical services- Oversaw a team of five engineers in optimizing and simplifying interview processes, resulting in a 15% reduction in time-to-hire and increased candidate experience by 20%

San Francisco, California, Us

- Rewrote the company-wide employee directory web application, resulting in a 50% acceleration of load times and a 20% boost in customer satisfaction score- Migrated critical services like scorecards and debriefs from Python to the Go monorepo, improving load time by 25% and raising test coverage by 50%

San Francisco, California, Us

- Enhanced a web-based subjective testing platform, yielding a 25% acceleration in conducting experiments - Implemented a comprehensive and scalable unit testing framework to automate API testing, resulting in a significant 75% enhancement in testing speed and 25% improvement in maintainability

San Francisco, California, Us

- Augmented web application to serve different versions from S3, resulting in a 35% reduction in user setup time - Created feature to generate screenshots inside Google Chrome, improving debugging speed by 25%

Champaign, Il, Us

- Established a tool for automatically generating GraphQL schemas from Swagger API using ReactJs and NodeJS, increasing generation speed by 40%- Refactored monolithic PHP Laravel application into microservices to improve maintainability by 30% and scalability by 50%

Us

- Produced Python scripts for extracting data from a SQL database to decrease debugging time by 30%- Transformed Django templates to stencil components in Typescript and Sass, reducing development time by 20%

Raymond, Ohio, Us

- Developed web application for visualizing autonomous vehicle motion to develop safer self-driving vehicles, boosting safety by 15% and reducing debugging time by 10%- Optimized interaction between a vehicle on-board unit and a road-side unit, lowering socket latency by 80%

Toronto, On, Ca

- Migrated ten components from a legacy desktop suite to a web application, increasing user satisfaction by 20%- Implemented over 30 integration tests to expose bugs between the frontend and backend, raising overall test coverage by 10% and fixed two critical bugs uncovered through testing

Master Of Science - Ms, Computer Science

Bachelor Of Science In Engineering, Computer Science

Computer Science