• Tech Lead for Sift's Content Abuse team -- using large-scale machine learning to catch users with fraudulent and abusive content.

• Managed the engineering team (Director of Engineering) from 2015 to 2016.

• Managed half the engineering team (Tech Lead / Manager) from 2014 to 2015.

• Third engineer hired at Sift.

Google Search Quality, Core Ranking team. Worked on a large-scale machine learning system for use in Google web search.