Implemented modular React components, responsive MUI layouts, and optimized client-server data flow for performance.

Built custom filtering options (e.g., payment frequency, deal type) to dynamically update financial offer data from backend APIs.

Ensured secure and efficient user experience with token-based auth and session handling.

Designed and built a multi-tenant Merchant Portal on Next.js App Router (TypeScript) with secure auth, dashboards, activity, deals, payments, and merchant info modules.

Built server APIs for offers, Payments history, activity logs, and help workflows; integrated advanced search/filtering to surface merchant data quickly.

Ensured security with token-based auth (Auth0), session management, inactivity guard, and role-based access; added robust error boundaries and safe fallbacks

Developed full-stack web applications using MERN stack, resulting in an increase in website speed and improvement in user conversion rates.

Optimized data operations by seamlessly integrating applications with databases through Spring Boot and Spring Data JPA, ensuring efficient and reliable data transactions across the entire system architecture.

Established a GraphQL API to query data from diverse sources efficiently, enabling real-time visualization of key metrics through integrated Grafana dashboards boosting data retrieval efficiency by 40%.

Increased code quality by 20% by integrating static analysis tools and unit testing into the CI/CD pipeline, catching potential issues early in the development cycle.

Boosted application performance by 40% through the use of RxJava's reactive programming model and asynchronous operations.

Designed and implemented a RESTful API with Spring REST, ensuring smooth data exchange between the frontend and backend, leading to a development time reduction of 15% for future integrations.

Employed backend infrastructure using Java, Spring Boot, and Spring MVC, refining product management, user authentication, and order workflows. Leveraged J2EE technologies like Servlets, JSP, JavaBeans, JDBC, and Multi-threading to achieve a 40% increase in processing speed and a 50% reduction in system downtime.

Built and exposed the application as a RESTful web service, implementing HTTP POST, GET, and error handling methods using appropriate status codes and utilizing Postman for API testing and validation.

Streamlined deployment and reduced provisioning time by 30% by automating the deployment of Java applications on AWS Elastic Compute Cloud using CI/CD pipelines built with Jenkins, OpenShift, and AWS CloudFormation.