I've researched and developed models and solutions that's been very successful at detecting and preventing abuse such as spam and account takeover. I've detected and deactivated tens of millions of fake accounts during my time at Pinterest -- all ideas were more or less my owns.

Experience

PersonaSoftware Engineer

2025 — Now

San Francisco, California, United States

Aug 2025: Technically the eng. manager for the Labs team here. However, there's no real management work since the team is nearly 100% IC-driven

Inventing new models for detecting fraud.

The best adversarial fraud models are neither rule based nor are they based off any supervised ML techniques. No existing unsupervised ML or anomaly detection models comes close to what's possible either. Rather -- need to invent it altogether from scratch

WhatnotSoftware Engineer

2023 — 2025

Detecting and preventing Referral Abuse, troll bidding, giveaway abuse, fraudulent buyers/sellers

PinterestSoftware Engineer, Anti-abuse

2019 — 2022

Working to stop Account Takeover and Spam!

DropboxSoftware Engineer

2015 — 2019

San Francisco, CA

Abuse Prevention:

Solved Account Takeover! Developed and production-ized model to stop ATOs. There has been no successful account takeover attacks since model was deployed.

FacebookSoftware Engineer Intern

2014 — 2014

Menlo Park, CA

Interned on the Internet.org team

Education

University of Wisconsin-Madison

Experience

Education

Bachelor's degree