Ben Henry

S

Director of Data Science at Millbrook Health · Fraud detection · rules engines, Python

Millbrook Health
San Francisco, CA · PT (UTC-8)
18+ years experience
USC
English
Messaging unavailable

Overview

I lead fraud detection at Millbrook Health in San Francisco. Taught SQL to 68 non-analysts. Cut false positives on payment blocks by 26%. Most at home with SQL and anomaly detection. Into vintage synthesizers.

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Skills
graph analyticsrules enginesanomaly detectionLightGBMSQLPython

Experience

  1. Director of Data Science
    Jul 2022 - Present
    Millbrook Health · 4 yr 3 mo · Full-time · San Francisco, CA
    • Caught $8 million of fraud in the first year of the new models.
    • Built the trust & safety models now used in 12 product decisions a quarter.
    • Replaced 25 hand-built dashboards with one metrics layer people trust.
  2. Analytics Manager
    Jun 2018 - Apr 2022
    Starbucks · 3 yr 10 mo · Full-time · San Francisco, CA
    • Caught $3 million of fraud in the first year of the new models.
    • Built the trust & safety models now used in 9 product decisions a quarter.
  3. Data Analyst
    Jul 2015 - Jun 2018
    Google · 2 yr 11 mo · Full-time · San Francisco, CA
    • Cut false positives on payment blocks by 37%.
    • Replaced 84 hand-built dashboards with one metrics layer people trust.
  4. Senior Data Scientist
    Sep 2011 - Jul 2015
    Kaiser Permanente · 3 yr 10 mo · Full-time · San Francisco, CA
    • Wrote the metric definitions the leadership team reviews every week.
  5. Data Analyst
    Feb 2009 - Sep 2011
    Bain & Company · 2 yr 7 mo · Full-time · San Francisco, CA
    • Wrote the metric definitions the leadership team reviews every week.
    • Caught $8 million of fraud in the first year of the new models.

Projects

Side project: a habit tracker
2025

Built with rules engines and Python. 3218 people used it last year.

References

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Education

  1. USC
    BS, Economics
    2001 - 2005

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