E Purna Chandra Patro

Brief:- InApp team owns a service that delivers campaigns to Android/iOS mobiles or to Web sites through SDKs

• As the senior most developer in team, I have designed and developed multiple features ensuring on-time delivery with help of 4 member team. Some of them are- InApp Presets, InApp client, InApp integration with Flows, AB Testing and Control Group
• Developed and maintained InApp service which handles a concurrency of 120k RPM at p99
• Designed and developed a system that migrates data to move customers one by one from an older version of application to a newer version with zero down time. An auxiliary application was also developed to support older api contracts that is used by older devices
• Setup different tools like newrelic, sentry, Graphana, redash monitor performance and application failures

• Was responsible for grooming and onboarding new hires at Banglore location

• Built a Rule-Based Fraud-Detection system based on session information to display captcha during registration
• Developed & managed 10 odd micro-services written in NodeJs or Python. Worked on sails.js, celery and django.
  
• Fixed and improved data syncing between server(couchdb) and user's houm server(pouchdb) by implementing continuous syncing through websocket connection.

• Built a microservice architecture with NodeJs for REST APIs and falcon with celery for running machine learning services
• Implemented API rate limiting for Freemium and Paid users
• Built a file system module to store and retrieve user documents in google cloud storage 

• Developed fiber optics network topology by improving and fixing GIS data using Neo4J Spatial
• Developed GIS algorithms on Neo4J to find and visualize alternate routes to an outage site(fiber cut location) from an active site. Developed visualization on google maps.

• A personal assistant app that provides daily tracking of health vitals, digital logbook, AI coach and personalized assistance. 
• A gamified app that gives customized diet and activity goals based on user demographics so as to improve his diabetic health profile
• Built a robust data synchronization mechanism between android app and server to provide seamless offline experience to users
  
• Served 500+ daily active users using a scalable REST API based architecture built with Django
• Integrated Google Fit pedometer on Android app to track user step count/runs and store/retrieve other user activity data
• Collaborated with doctors to build algorithms to generate and show insights from user logged data

• Twitter Search Analytics - Built an automated platform that pulls data on a Topic and runs analytics to generate insights like user ergonomics, such as geographical distribution, language usage, mobile device usage, etc.
• Thomson Reuters(IMS) - Lead a devops team of 6 to oversee production releases.Oversaw day to day issues in production ranging from code bugs, data inconsistencies, to cluster issues

Kone hackathon (team of 4) - Developed an IOT solution to predict lift failure using data from gyro sensor fitted on a lift. Developed data pipeline to feed data to SVM model and predict in real time. 

Coordinator for event Falcon @ Techfest 2009, IIT Bombay