About

Hechao Sun is a highly skilled machine learning engineer with a strong background in applied statistics and experience in working with large amounts of unstructured data. With a PhD in applied statistics, Hechao has a deep understanding of statistical and machine learning theories and models, as well as practical implementation tools such as R, Python, SQL, Scala, TensorFlow, Spark, C++, and Linux. Hechao is an interdisciplinary researcher with expertise in various fields, including statistics, machine learning, and computer science. He is a quick learner and highly adaptable to new environments, which makes him a standout full-stack data scientist who can tackle problems and make improvements at any step of the workflow. Currently, Hechao is a senior machine learning engineer at Instacart, where he focuses on recommendation and personalization. Prior to this, he worked as a research data scientist at Facebook infrastructure organization, where he was responsible for capacity planning and efficiency and reliability engineering. He was involved in multiple projects across different domains, including forecasting, anomaly/regression detection and diagnosis, and ML predictive modeling. He also worked as a machine learning data scientist at Groupon local intelligence team, where he built, tested, and deployed a new merchant ranking model that served the whole Groupon local business. Hechao's educational background includes a PhD in statistics from the University of Maryland, where he also earned a Master of Science in Chemistry. He earned his Bachelor's degree in Chemistry from Nanjing University. Hechao's technical skills include ML, research scientist, data scientist, SQL, Spark, TensorFlow, Python, Scala, infra, and test. With 5.70 years of relevant experience, Hechao is a highly skilled and versatile machine learning engineer with a proven track record of success.