1. Played a key role in designing the architecture and logging and ingestion of real-time data via NodeJS APIs. Helped in scaling the hits to 15000 per second by utilizing worker cluster in NodeJS which effectively leverages the multiple cores of the machine for greater parallel performance.2. Created AWS Auto-scale cluster for the above APIs to handle greater traffic and exposed them using load balancers. Worked on writing NodeJS Lambda functions based on AWS Stream Model to calculate the metrics real-time as the data streams through AWS Kinesis. Extensive use of promises was involved.3. Integrated Redis, Mapbox with NodeJS to create a map plotting live points and the ability to filter on the basis of customers and determine their current location.4. A real-time metric integration to plot the commuting route of customers in the past 24 hours using NodeJS5. Wrote extensive lambda functions in NodeJS for querying multiple indices of Elasticsearch in a single thread.6. Determination of User search preferences using string optimization techniques in NodeJS7. Hosted the entire project on AWS using a serverless framework which involved the use of Cloud Formation Templates.8. Created AWS API Gateways and done the response mapping with lambda functions of NodeJS9. Wrote multiple and heavy scripts for ETL of data from DynamoDB to Redshift.

1. Created online portal for video host and subscription offers for studios in NodeJS using Express, Mongoose and Jade. Implemented multi-tenancy with Mongoose2. Integrated payment gateway and established an escrow payment system while handling all the edge cases in NodeJS.3. Worked on scalability of the application, successfully crossing a user base of more than a million.4. Created dashboards using d3 and leaflet in NodeJS and prepared analytics for the customers.Created a banking tool for a company in PHP which allows the customer giants to lock the prices based on bidding for product.5. Created functionalities for approvals of the deal through various hierarchies of the company6. Created online wallet to accept international payments and integrated the same through PayPal7. Implemented functionality to generate reports based on various parameters of user’s choice.8. Worked on the UI enhancements and Usable feasibility criterions.