Florian Rundhammer
Economist and Data Scientist | Experimentation & Causal Inference
- Role
- Director, Data Science (Economics) at Walmart
- Location
- Brooklyn, NY, US
- LinkedIn followers
- 500 followers
About Florian Rundhammer
I am an experienced industry economist and data scientist with expertise in experimentation and causal inference. I currently lead a team of economists at Walmart. We drive business impact through the design and analysis of large-scale experiments (100M+ customers; 4,500+ stores) and the use of advanced econometric methods to answer business questions. I previously shaped experimentation at Grubhub and led economic analyses for high-stakes litigation at Cornerstone Research.
Experience
Director, Data Science (Economics)
Feb 2025 — Present · New York, NY, US
I am an economist on Walmart\'s Economics Team under Chief Economist Prof. John List- Design and analyze large-scale experiments with 100M+ customers across eComm and 4,500+ stores, using advanced methods like cluster randomization, variance reduction/CUPED, and random encouragement designs- Leverage observational causal inference techniques (e.g, difference-in-differences, regression discontinuity, synthetic control) to generate actionable insights for complex business decisions in contexts where experimentation is infeasible or impractical- Synthesize business intuition with principles from economics and behavioral science to develop hypotheses, design rigorous studies, and deliver data-driven results for decision-making- Partner with Business, Product, Finance, Analytics, and Engineering stakeholders to execute cross-functional projects across key business areas, including digital ads, Walmart+, Sam\'s Club, and Walmart’s Spark gigworker platform- Lead and mentor a team of data scientists (entry to staff level), fostering their professional development and contributing to Walmart\'s economics function’s growth from 8 to 20+ professionals through strategic recruiting and mentorship.
Education
Georgia State University
Master of Arts (M.A.), Economics
2017
University of Graz
Bachelor’s Degree, Economics
2009 — 2012
Georgia State University
Doctor of Philosophy (Ph.D.), Economics
2012 — 2018
University of Graz
Bachelor’s Degree, Business Administration
2007 — 2010
University of Tennessee, Knoxville
Economics
2010 — 2011
Find verified contacts for anyone on LinkedIn
Unifers gives sales teams verified emails and direct dials, enriched profiles, and outreach that lands in the inbox.
Free plan included · No credit card required
This profile is compiled from publicly available professional sources. Unifers is not affiliated with or endorsed by LinkedIn. Request removal of this profile.