I made significant contributions to Paytm, actively contributing to microservices, and resolving critical production issues.:-E-Signature Service:
-Designed and deployed an e-signature RESTAPI that automates the creation of e- Stamps for regulatory-compliant transactions in documents uploaded during the onboarding process on the application.
-Achieved an 80% reduction in downtime and increased e-signature success rates from 70% to 90%.
:-OAuth Service:
-Implemented resilient OAuth token invalidation using Retryable Kafka Topic Implementation and DLT handling. 
:-Bank and User-profile Service:
-Crafted a Cron API to dispatch emails and push notifications to users with invalid IFSC codes.-Ensured high scalability for a user base of 6 million records with efficient data operations and reliable retrieval mechanisms.
-Improved Bank microservices logs to mask personal user data for SEBI Norms compliance. 
:-Resolved diverse bugs, implemented permanent solutions, and improved API efficiency from 100 ms to 25 ms. 
:-Application Monitoring:
 Proactively optimized system performance with Grafana, resolving critical issues through quick problem resolution and effective team communication.

This internship was a wonderful experience. I had the opportunity to work with some industry experts. Improved application performance by writing JUnit and integration test cases, achieving over 80% code coverage. Optimized SQL queries.I gained hands-on experience working with a Java Spring Boot application and developed a deep understanding of the REST API workflow.