Jan 2015 – May 2015 · 4 mos · Mountainview, California

• Semantic Location Parsing - Realtime:
• Technologies: Java, R
• Developed a feature discretization algorithm based on information gain that increased precision to predict user location by 1%.
• Developed a script to analyze feature computation timings that helped decrease geometry timings by 20%.
• Developed a script to find the model with the least score variance that reduced variance by 10%.
• Automated confidence score calibration which helped us send clients an expected confidence score for our predictions.

Sep 2014 – Dec 2014 · 3 mos

• Technologies: Java, R
• Developed a machine-learning algorithm for eBay's service monitoring infrastructure - Hawkeye that could alert users to possible anomalies(spikes/dips) in service metrics before they happened.
• Implemented an initial prototype of the algorithm using R's forecast package that demonstrated a 75% out-of-sample accuracy compared to actual metric values. It also had a 90% accuracy in predicting anomalous metrics.

Jun 2014 – Aug 2014 · 2 mos

• Technologies Used: Android Java
• Developed the Android app for eBay's service monitoring infrastructure - HawkEye from scratch to allow real-time analysis of core service metrics.
• Implemented dynamic charting, single-point drilldowns and notification-based alerting through an intuitive gesture-based user interface which is expected to decrease issue detection and analysis time by 20%.
• Released the developed app to all eBay Inc. employees and multiple teams within eBay including the Shopping Cart team started using the app for their day-to-day monitoring needs.

May 2012 – Jun 2013 · 1 yr 1 mo · Mumbai

• Technologies Used: C++, C#.net, SQL, Oracle, Control-M, Crystal Reports
• Implemented and supported a margin calculation engine for a user base of 3500+ clients.
• Re-designed the batch job scheduler based on server usage which decreased batch timings by 2 hours/day.
• Created a database comparison tool that decreased impact testing timings by 2 days/cycle.

Oct 2011 – May 2012 · 7 mos · Mumbai

• Technologies Used: C
• Implemented an order matching system for the Bombay Stock Exchange for matching buy and sell orders.
• Implemented a combination of a hash structure and a heap to store, retrieve and compare stock bids that decreased order processing time by 25%.