Helped migrate planning and trafficking components of $1 Billion ads business from Google to AdsWizz, an acquired subsidiary, without hiccups.

Worked on features for Statuspage - a service for communicating with customers about planned and unplanned downtime. Ruby, Rails, Javascript, React, MySQL, email, SMS.

Led design and development of version two of the company's core technical asset, a stream-oriented classifier engine. Replaced Ruby/Redis with Java/Kafka. Increased throughput 100x. Created a cross-validation framework and system for tracking and visualizing classifier effectiveness over time. Ruby, Rails, Sinatra, JavaScript, Redis, MySQL, Python, Kafka, Zookeeper, AWS, Salt, Hadoop, Spark, Scala, JRuby, Java.

Helped develop legal discovery and advertising applications and maintain an underlying Bayesian classifier engine handling emails and tweets. Ruby, Rails, Sinatra, Redis, MySQL, Python, Kafka, Zookeeper, AWS, Salt, Hadoop.

Helped port freebase.com to Google infrastructure. Provided oncall support for Freebase and Google Knowledge Graph. Implemented insert, update, and delete operations of a next-generation graph database.