- Designed and led development of Pinterest’s spam fighting platform Guardian, which scans 300k events per second for 800+ harmful patterns, and which provides analysis and mitigation capability to about 40 internal analysts/engineers.- Mentored and collaborated with engineers building unsupervised clustering ML models.- Open-sourced a best-in-class Thrift parser generator in Elixir

Worked on the Google Maps web client.

Worked on the Causes web app.

Prototyped a cloud computing platform for PHP inspired by Heroku.

* Migrated infrastructure to Amazon EC2 and RDS.* Built a system to coordinate the video rendering process.* Consolidated multiple sign-on mechanisms into a single interface.* Converted a system from MySQL to Oracle.* Built a simple reporting system.* Built a SOAP API.

Maintained several e-commerce sites and an internal management app. Developed a new site from the ground up (Limited Too).

Wrote office automation software in FoxPro.