williamwei

A driven data scientist with 5 years of experience in advanced analytics and big data engineering. Currently working at Alibaba Group, where I lead a team of 4 analysts and 4 engineers to optimize user growth and retention for a userbase of over 170 million. Developed an AB testing platform that increased experiment velocity 3x. Built machine learning models utilizing techniques like random forests and clustering that lifted new user conversion rates by 60%. Established data pipelines in MaxCompute and Flink that reduced ETL delays from 10s to 3s. Looking to join a fast-paced technology company where I can leverage my skills in SQL, Python, machine learning and data modeling to enable data-driven decision making.