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Sasha Bartashnik

Sasha leads a team of analysts focused on optimizing $1.6B online retailer zulily’s multi-channel marketing strategy. She has helped develop and execute attribution of online and offline media and drive decisions through iterative testing. She has also enabled the marketing team to transition to self-service analytics using Tableau, enabling a shorter cycle between data and action, to help drive a 16% increase in active customers in 2017 – to 5.8M. Prior to zulily, Sasha worked at Memorial Sloan Kettering Cancer Center applying predictive modeling and visualization to solve strategic problems in healthcare. Sasha has taught data visualization via Tableau at the NYC Data Science Academy and the Pratt Institute. She volunteers with DataKind, using the power of data science to support mission-driven organizations. Sasha received her Masters in Management Science at the University of Cambridge and BA in Mathematics at Pomona College.


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