Designed and developed a scalable voucher management platform handling multiple business domains including restaurants, retail, and gift services. Built using Node.js, MongoDB, and Docker, the system is based on a microservices architecture with 10+ services and an API Gateway. Key features: - Real-time credit validation - Automated billing workflows - PDF voucher generation Implemented secure authentication using JWT and optimized service communication. Impact: - Reduced manual processing and human errors - Improved operational efficiency - Scalable architecture supporting multiple busine