Product Service

Developed REST APIs with Redis distributed caching to reduce database load and latency; implemented advanced query features including multi-criteria filtering, pagination, and sorting.

Order Service

Developed REST APIs for robust order management system utilizing Feign Clients and Eureka for dynamic service discovery, ensuring seamless, load-balanced communication with inventory and user domains.

Payment Service

Developed REST APIs for payment gateway with ACID-compliant transactional tracking; implemented state-machine logic to maintain synchronization with the Order service while ensuring strict data isolation.

Infrastructure & Observability

Secured the ecosystem via Spring Cloud API Gateway and Auth0/JWT; integrated Zipkin for distributed tracing to identify bottlenecks and monitor request flow across the microservices.

CI/CD & Cloud

Streamlined deployment using a GitHub and Jenkins pipeline; containerized services with Docker for consistent environments and managed automated deployments to Google Kubernetes Engine (GKE).

Authentication & Authorization Service

Developed REST APIs to manage user authentication and secure session management for customer and seller roles, including secure session termination using JWT token generation.

Seller Management Service

Developed REST APIs enabling privileged "Administrator" role for sellers, with secure Spring Boot APIs for product CRUD operations and access to customer/order data, persisted with MySQL via Spring Data JPA/Hibernate.

Customer Interaction Service

Developed REST APIs for user registration, secure login, product browsing, and personalized features, managing customer data through Spring Data JPA.

Product Catalog Service

Developed REST APIs to manage product listings using pagination, details, and inventory, stored in MySQL for efficient querying.

Shopping Cart Service

Developed REST APIs for functionalities like adding, removing, and updating items within a user's shopping cart, integrated with product and user data.

Order Processing Service

Developed REST APIs to manage the end-to-end lifecycle of order creation, tracking, and fulfillment, ensuring data integrity with MySQL through Spring Data JPA and tested using Postman.