Paavan Kumar Sirigiri Email & Phone Number

Washington, District Of Columbia, Us

Working in the search team at Mapbox

Santa Clara, Ca, Us

Developing several features for search, auto suggestion and word suggestion in the embedded and cloud search engine platform of connected cars using Lucene and Java.Performance tuning of the auto suggestion results to decrease the response time by around 50 percent.Generated phonetics knowledge for use in Voice SearchesCreated separate services for auto suggestion, word suggestion and knowledge tagging as part of “Service Hub” project.Added Predictive Destination feature to auto suggestion in search engine platform.Designed and implemented the Reset API for Prediction of Home Area for users of connected cars.

New York, Ny, Us

Developed many data pipelines for processing millions of Point of Interest (POI) Responsible for managing a geographical Postgres database of POIs across several countries. Built an Elastic Search based index which is used for the purpose of n-gram and shingle based fuzzy street address match and geo distance match of POIs from different data sources.Implemented the branded and unbranded POI deduplication process using the Elastic Search indexExperience working with Hadoop and Hive using the ad request data of mobile users to prioritize POIs for Geocoding and all other data pipelines.Conflated the parcel and building footprint data for the counties in the US to build polygons of POIs

Stony Brook, Ny, Us

Using Constraint Satisfaction Algorithms to assign TA’s for TA Allocation Web system of Computer Science Department.

Prepared high level design for implementing USB over Wifi for Android using Wifi Serial Bus.Developed features for Samsung Wifi Direct in framework layer of Android.Responsible for maintaining and fixing defects in Wifi Direct framework and reduced the bugs by 50 percent in this framework.

Hyderabad, Telangana, In

Implemented five million dollar web based promotion called “Card Rush” to give away scratch cards to players on all gaming websites based on points earned by them using Struts and SpringResponsible for end to end ownership of the UI configuration tool and engine service module to process the Active MQ messages.Calculated periodical aggregate scores and ranks of players using Map reduce techniques in Hbase and Hadoop framework.Redesigned existing server side web pages to client based framework using Backbone Javascript.Prevented monetary loss of 10 percent budget by fixing the awarding logic.

Southlake, Texas, Us

Implemented multithreaded framework for the REST calls while booking with “Pay By Cash” on payment page and reduced page load time by 60 percent.Worked on redesigning of UI framework and batch processes for TravelGuru.com and Travelocity.in, which involves processing SOAP responses by calling web services and indexing of all the data and JUnit testing.

Visualized Gene Network Graphs from XML data containing 3 million nodes and building subset networks using certain algorithms implemented in Java.Results were used to generate various reports from the gene-expression data.

Hyderabad, Telangana, In

Master'S Degree, Computer Science

Bachelor’S Degree, Bs Computer Science And Ms Physics