Shubham Kumar Singh

Java Back-end Developer

Projects :

• Worked with development teams to correct problems and run test scenarios.
• Authorization Batches - Created a back-end API service for TOAST clients that enables them to retrieve the precise contents of a batch before release which helps them troubleshoot issues while authorizing and reversing payments. API is currently handling more than 60k merchants.
• Reporting API - Enhanced an existing API that enables clients(banks/ financial institutions) to retrieve data on successful deposits, settlements and bank errors. API was enhanced to include real-time and non-real-time authorizations, get complete details of an individual real-time and non-real-time authorization, summary of real-time and non-real-time authorizations.
• The average response time of API is around 3-5 seconds/4000 records. Sensitive data are masked according to the license being passed in it. APIs are deployed in the AWS server.
• Database Used: IBM DB2, Snowflake

• Identified service improvements to increase customer satisfaction.
• Maintained records of account specific service problems and assisted in prioritizing work requests.
• Used Dynatrace, an application monitoring tool that helps the users with proper performance monitoring and consistent availability in the system.
• Performed operational insights to enhance the productivity caused by heavy load on the server.