About

Sophie S. is a Senior Machine Learning Engineer at Apple with over 6 years of relevant experience in the field. With a motto of "how could it be better?" she is always striving to improve and innovate. She is a tech-savvy individual who also has a passion for creative arts such as video making and writing. Recently, she has been enjoying tennis and public speaking. Sophie has worked at both Apple and Walmart in the past. At Apple, she worked as a Machine Learning Engineer on on-device machine learning in Apple Pay products for better customer experience and fraud prevention. At Walmart, she was a Senior Data Scientist - Customer Technology where she worked on end-to-end real-time anti-fraud prevention in Walmart Pay. She developed a new version of models that captured 20% more fraudulent transactions while maintaining the same decline rate. She also researched Graph Deep Learning, developed the first version of a graph node scoring model from scratch, and led a team of 3 that won the Best in Execution Award at Walmart Hackathon. Sophie is a highly educated individual with a Master's Degree in Electrical Engineering from Harvard University and a Bachelor of Engineering in Electrical, Electronics and Communications Engineering from Beijing University of Posts and Telecommunications. Her technical skills include ML, Research Scientist, Data Scientist, AI, Deep Learning, and testing. With her experience and expertise, Sophie is an asset to any team she works with.