Mar 2018 – Jul 2019 · 1 yr 4 mos · India

• Developed a Topic modelling pipeline to generate 500 Topics (daily) from articles curated from 50k influencers using Gensim’s LDA and later NMF to generate narrow topics.
• Developed similarity algorithm to find the similar topics over the time using TF-IDF and cosine similarity.
• Developed a similarity algorithm to identify near duplicate articles using MinHash.
• Developed data pipelines to crawl websites, pre-process them using NLP preprocessing techniques.
• Developed Entity extraction and linking entities to Wiki pages using Entity linking techniques.
• Implemented serverless architecture using AWS lambda, API Gateway and setup CI/CD.

Feb 2011 – Mar 2018 · 7 yrs 1 mo · Pune Area, India

• Led a team of 3 to develop Ad studio API (A tool which empowers designer to create Ad and Campaign management) using Java Spring framework.
• Developed AdServer engine and scaled the application to handle millions of request per day within 100 millisecond parsing through 10’s of targeting criteria.
• Developed Mapreduce programs to process analytics events and generate data for warehouse and pre-aggregated database.
• Developed Reporting API’s and optimised by creating pre-aggregated tables in MySQL for faster retrieval of regular reports and referring to data warehouse for AdHoc request.
• Setup and managed Mongo cluster, AWS Redshift columnar database.
• Developed Mobile autoplay video engine to render image sequence in browser (back when autoplay video was not supported on mobile devices) as an Ad format.
• Developed FFMPEG wrapper in java to generate video to image sequence convertor to support video autoplay in mobile.
• Developed Android Ad SDK which then powered Ad on Times Of India, India Today, Mid-Day, Business Today and many more.
• Led a team of 2 to develop Android apps for Mid-Day, Business Today, India Today, Jagbani, Punjab Kesari.
• Developed crawler using Python scrapy to crawl & parse News feeds from different publishers and convert them to one format to serve all Android and iOS apps.

Oct 2008 – Feb 2011 · 2 yrs 4 mos · Mumbai Area, India

• Developed a communication channel between Home wifi routers and remote servers using XMPP protocol in C.
• Developed a router program to create a Mesh network to provide seamless access to the end user while roaming.
• Setup monitoring for services using Nagios.