Associated with development, implementation, and enhancement of GST System India. Key Responsibilities: * Developed reusable and extensible common caching frameworks. These frameworks were used in multiple microservices of Goods and Service Tax Network (GSTN) using Java 8 and Spring Boot.* Developed an authentication framework in Spring Boot. This framework uses LDAP for authenticating 12.3 Million users.* Developed a common framework to encrypt and decrypt the JSON data which was shared by the banks.* Implemented Redis and JDG (Jboss Data Grid) for caching the data, in order to improve the performance of the system.* Developed a tool to manage the cached Data of the GSTN system.* Built multiple RESTful APIs related to payments microservice at GSTN Portal which is responsible for handling more than $1 Trillion transactions per month using Spring Boot.* Built performance metrics that show the success and failure ratios of different bank services using AngularJS, Spring Batch, and Ehcache.* Automated reconciliation process of payments between GSTN and 26 banks by comparing the files between the two systems using Spring Batch.

Associated with development and implementation of an entire module (Payment module) of GST System India.Key Responsibilities:* Built a proof of concept (POC) for an entire microservice Payment using Spring Boot, which allowed me to present a demo of that POC to our former CEO Mr Vishal Sikka* Built an API documentation using Swagger-ui for front-end implementation and RESTful API testing.* Used Spring Batch to extract data from database, processed the data and loaded into corresponding tables.* Implemented a client-side PDF downloading feature using pdfmake.js* Created wireframes using Microsoft Visio.