Working as a full-stack developer responsible for TinyMart Kiosk App, Payment Server, and close looped wallet.TinyMart Android App- Worked on the android kiosk application for tinymart vending machine.- Integrated Juspay payments SDK- Created an Event management structure similar to GA for internal loggingTinyMart Server- Implemented Juspay payment mode S2S integration- Worked on Rest API's - spring framework for tinymart product.TinyMart closed-loop Wallet- Worked on a Closed-loop wallet which can do debit, credit and status check for all enterprisecustomers using the Kiosk.Monitoring and Analytics● Setup ELK stack for analyzing the customer usage patterns, transaction monitoring

- Working as a full-stack developer in the software team responsible for the design and development of server, android and web applications for Ezetap devices – which are end-to-end designed and manufactured in house. - Developed a spring boot application to fetch transaction details through a Rest API.The data for this application is pipelined from the production database to a crate database.- Contributed to the design and development of CNP payment system and integration of Cybersource payment gateway.- Designed and developed android service applications for Aadhaar Enabled Payment Solution.Implemented a transport layer which enables the mobile to read fingerprint data from a biometric sensor through various communication channels [Bluetooth(SPP and GATT profiles), USB and UART].Individual contributor for Ezetap SubAua system.- Developed an android application for authentication and KYC for a user.- Developed a spring based web application which will interact with the UIDAI server for KYC.- Implemented Contactless(NFC) card transaction payment mode in Ezetap SDK that works with a pos device.- Added support for Bluetooth GATT profile in ezetap android service application to communicate with the mpos devices.

Android developer internship- Worked on Android payment SDK of ezetap - Worked in the integration of wallets in the payment SDK- Worked on the communication layer between the android app and the POS machine.

Worked on backend development - written API's to create and manage transactions- Integrated payment flow with InstaMojo payment APIs.- Developed web-hook APIs that will be used by Instamojo to post-transaction data.