In my previous role at eBay, I was an engineering manager leading a team of engineers and applied researchers building core search features on search relevancy and ranking. Prior to that, I was a search engineer and a data scientist working on improving search relevance. I am equally adept at research areas in Information retrieval, Machine learning and Software engineering.

Engineering Manager @ From October 2015 to Present (3 months) San Francisco Bay AreaEngineering Manager @ From August 2014 to October 2015 (1 year 3 months) Engineering Manager, Search Sciences @ I lead a team of engineers and applied researchers building core search features for improving search relevancy and ranking. Some of the features that my team works on are : Query rewriting, Speller, Generating ranking factors, Query reduction techniques for long and verbose queries ..etc From February 2014 to August 2014 (7 months) Member of Technical Staff 2/ Principal Engineer @ Working on improving search relevance for tail queries. From April 2013 to February 2014 (11 months) Member of Technical Staff/Sr. Research Scientist @ Worked on recovery techniques for low recall queries. From September 2011 to March 2013 (1 year 7 months) Sr. Software Engineer/Research Scientist @ • Worked on search relevance, ranking functions and query rewriting algorithms. • Developed algorithms for expanding user queries to increase recall. • Developed query reduction techniques to recover from zero/low result queries. • Worked on click fraud and bot detection systems. • Designed and implemented systems that are currently running live on site. From September 2008 to September 2011 (3 years 1 month) Graudate Student Researcher @ • Conduct innovative research in database technology and publish the results in conferences and journals. • Develop and demonstrate innovative software prototypes based on the innovative work done in the research lab. • Be a position of judge and review research papers submitted to conferences and journals. Help in writing and submitting research grants. From 2005 to 2008 (3 years) Research Intern @ • Developed the SIdeCAR system that allows users to consent and control identity information collected by the web services for authentication. • SIdeCAR was implemented as a part of the Higgins project at IBM TJ Watson Research Center. • The research results were published as an IBM research report RC 24359. From 2007 to 2007 (less than a year)

Phd, Computer Science @ University of California, Irvine From 2004 to 2008 Bachelors in Computer Science and Engineering @ University of Madras From 1997 to 2001 Ravi Jammalamadaka is skilled in: Distributed Systems, Hadoop, MapReduce, Machine Learning, Information Retrieval, Algorithms, Data Mining, Big Data, Scalability, Python, Computer Science, Java, Apache Pig, Software Engineering, Natural Language Processing