Annie Sato

S

Data Scientist at Wren Commerce · survival analysis, Python

Wren Commerce
San Francisco, CA · PT (UTC-8)
1+ years experience
Columbia University
English
Messaging unavailable

Overview

Currently at Wren Commerce, where I work on credit risk modelling. Took the risk models through 5 regulatory model reviews.

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Slower in the last week of each quarter

Skills
XGBoostPythonSQLcredit scoringmodel governancesurvival analysis

Experience

  1. Data Scientist
    Oct 2025 - Present
    Wren Commerce · 1 yr · Full-time · San Francisco, CA
    • Replaced 110 hand-built dashboards with one metrics layer people trust.
    • Took the risk models through 5 regulatory model reviews.
    • Taught SQL to 81 non-analysts.

Projects

Write-up: credit risk modelling in practice
2024

A long-form guide to credit risk modelling for people starting out.

Credit risk modelling benchmark
2023

Reproducible benchmarks comparing model governance and SQL on real workloads.

References

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Education

  1. Columbia University
    BA, Operations Research
    2021 - 2025

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