- Developed various modules in the project utilising REST for communicating with internal & external clients (with and without SSL) and Kafka for async communications, employing appropriate design patterns basis the usecase following a Test Driven Development approach.- Ensured compliance with RBI restrictions for Paytm Payments Bank Ltd., crafting a robust and scalable solution for onboarding third-party banks for UPI i.e Yes Bank and Axis Bank- Credit Card on UPI and Wallet Interoperability: Enhanced payment options by enabling merchants to accept Rupay Credit card or Wallet on UPI rails, with configurable commissions.- Established a new microservice from scratch to serve high TPS read requests, utilizing redis caching and serving data from a DB replica slave, resulting in a 70% increase in efficiency and a 40% reduction in database load.- Used CPU and memory profiling to identify bottlenecks, optimizing the performance of the system infrastructure, resulting in a 15% reduction in infrastructure costs.- Pushed API metrics to Grafana for monitoring, including success rates, latency, exceptions, and cache performance.

- Implemented REST APIs following the Agile methodology, along with Unit Tests and proper documentation for APIs.- Security Fixes: Addressed various vulnerabilities such as SQL Injection, CORS, CSP, Stored and Reflected XSS, using tools like Checkmarx.

Contributed in building the official website for the MLSC, TIET for the year 2019.Responsible for Event Management, Planning and Handling of all technical events like Hackathons, Coding Competitions and Workshops.Coordinated with fellow Executive and Core Members

Contributed in building the official website for MLSC, TIET for the year 2018Conducted several technical events under guidance from core members and heads in the society