Jack Carroll

Overview

I've spent 16 years on demand forecasting - first at PwC, now at Jade Mobility. Reduced stock-outs by 17% in the first season. Before that: Bain & Company and Amazon. Most at home with inventory optimisation and time series. Bird-watcher and amateur naturalist.

Experience

1. Head of Data

   Sep 2025 - Present
   Jade Mobility · 1 yr 1 mo · Full-time · San Francisco, CA
   • Built the forecasting models now used in 7 product decisions a quarter.
   • Reduced stock-outs by 18% in the first season.
   • Taught SQL to 104 non-analysts.
2. Data Analyst

   Feb 2022 - Sep 2025
   Bain & Company · 3 yr 7 mo · Full-time · San Francisco, CA
   • Replaced 91 hand-built dashboards with one metrics layer people trust.
3. Data Analyst

   Jul 2018 - Feb 2022
   Amazon · 3 yr 7 mo · Full-time · San Francisco, CA
   • Cut forecast error from 30% to 8% across 3870 SKUs.
4. Senior Data Scientist

   Mar 2017 - Jul 2018
   Johnson & Johnson · 1 yr 4 mo · Full-time · San Francisco, CA
   • Built the forecasting models now used in 10 product decisions a quarter.
5. Data Scientist

   Sep 2015 - Mar 2017
   PwC · 1 yr 6 mo · Full-time · San Francisco, CA
   • Taught SQL to 169 non-analysts.
   • Wrote the metric definitions the leadership team reviews every week.

No references yet.

Education

1. Stanford GSB

   MBA, Business Administration
   2013 - 2015
2. Princeton University

   AB, Operations Research
   2006 - 2010