Wally Chang
Timeline

The long view, by date.

Every entry the homepage Bento draws from — projects, roles, races, coursework, milestones — sorted newest to oldest.

16 entries · Summer 2022May 2026
Fall 2025 →
Project · ongoing
May 2025 →
Role · current
PricingCausal inferenceBayesianSQL

Data Scientist at Extend

Pricing and risk models for extended warranties, deployed across Peloton, Oura Ring, Sonos, Michaels, and Advance Auto Parts. $600K+ in incremental net revenue from pricing and term optimizations. Behavioral-economics-shaped test design; Bayesian, frequentist, and quasi-experimental evaluation.

Aug 2024 — May 2025
Role
PECybersecurityInternal tools

Private Equity Analyst at Carrick Capital Partners

Covered cybersecurity and GRC. Built an internal tool that ranks investment prospects from market maps; analysts used it to prioritize sourcing and it set up three meetings at the RSA Conference. Cut analysis time by roughly 80%.

May 2024
milestone
CornellMPS

MPS Data Science, Cornell Bowers CIS — graduated, 3.99 GPA

One-year Master's after the BS. The interesting work was AmEx ML research and the financial-crisis risk project; the rest was the rigor that lets you read a paper without bluffing.

Feb — May 2024
Research · led 8 engineers
Dec 2023
milestone
CornellBS

BS Information Science, Cornell CALS — magna cum laude, 3.88 GPA

Information Science with a Business minor. Independent research in text mining; a lot of late nights in Gates Hall.

Summer 2023
Role · intern
PEModeling

Private Equity Intern at Carrick Capital Partners

First exposure to software investing. Financial modeling, market research, expert calls. Got asked back full-time the following year.

Summer 2022
Role · consulting intern
ConsultingOperations

PwC — operational strategy for CareerVillage

Helped CareerVillage improve student-question to professional-response matching efficiency. Side quest: led a team to 2nd place out of 70+ in PwC's firmwide consulting case competition, presenting to a Partner panel.