Zachary Goldstein is a Senior Data Scientist currently working at HelloFresh since June 2025, specializing in experimentation. Prior roles include Senior Data Scientist and Data Scientist at Klar from October 2023 to June 2025, and Data Scientist at BlueLabs from October 2019 to August 2022, where causal inference and machine learning were applied for clients such as Amazon, NBCUniversal, and various political organizations. Earlier experience includes positions as a Data Analyst intern at the Center for Public Integrity, a Data Intern at 90.5 WESA, and an Undergraduate Teaching Assistant at Carnegie Mellon University, where Zachary received the Statistics TA Excellence Award. Educational qualifications include a Master of Arts in Social Sciences from the University of Chicago and a Bachelor of Science in Statistics from Carnegie Mellon University.
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