Matthew Tsim is a data science professional with extensive experience in analytics and strategic growth initiatives across several technology companies. Currently serving as a Staff Data Scientist at Slack since September 2025, Matthew previously held roles at Reddit, Inc. where contributions included leading SMB Growth in Ads and defining user onboarding analytics. Additional experience includes working as a Data Scientist at Atom Finance, a Senior Data Analyst at hims & hers, and a Data Analyst at CoverWallet, along with an earlier position as a Quantitative Analyst at AllianceBernstein. Matthew holds a Bachelor of Arts in Applied Mathematics, graduating magna cum laude from Columbia University in 2016.
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