Biprajit Saha Roy

Project Name : Switchboard

Tasks Performed : -

Company: Zopsmart Technology Private Limited
Duration: 2021 – Present
Project Name: Switchboard

Key Responsibilities:

• Implemented a caching service using Elasticsearch, Kafka, Java Spring Boot, and PostgreSQL, significantly reducing response times for all UI API calls.
• Introduced an event-driven architecture leveraging Kafka, microservices, and Spring Boot to efficiently manage the daily processing of over 2 million products for delivery.
• Collaborated on developing UI component libraries for major e-commerce clients, including Kroger, utilizing React to enhance front-end consistency and reusability.
• Assisted the QA team in building Selenium automation test suites, improving overall testing efficiency and product quality.

Project Name: Merch Hub

Key Responsibilities:

• Implemented secure, stateless authentication and authorization in Java Spring Boot-based microservices using JWT tokens integrated with Azure Active Directory (AD) and PostgreSQL, ensuring only authorized AD users can access merchandising services.
• Developed and integrated role-based access control (RBAC) and Single Sign-On (SSO) features in Spring Boot microservices with PostgreSQL support, enabling seamless user authentication while enhancing security, performance, and user experience.
• Collaborated with cross-functional teams to align authentication mechanisms with organizational security standards, conducted comprehensive testing (unit, integration, and security), and documented the solution for smooth adoption.
• Optimized database queries and authentication workflows in PostgreSQL and Spring Boot, improving overall system performance and reducing latency during high-traffic periods.

Project Name: Budhiyoga

Key Responsibilities:

• Led a team to develop mobile games using React Native, Java Spring Boot, and MySQL, creating a digital adaptation of an ancient Indian board game.
• Implemented a NoSQL architecture with MongoDB to capture and store users' game moves for machine learning research and modeling, enhancing the game’s adaptive difficulty levels.

Project Name: ConnectApp

Key Responsibilities:

• Developed a cross-platform mobile and web application using React Native, React, Java Spring Boot, and MySQL to capture and manage the activities of an NGO focused on educating underprivileged children.
• Integrated in-app video streaming and broadcasting capabilities using AWS Lambda, AWS CloudFront, and Amazon S3, improving content delivery and user engagement.
• Optimized media loading times for both web and mobile platforms by implementing Cloudflare CDN, resulting in a smoother user experience.