Shiwani Singh

Backend Developer with experience building scalable SaaS and e-commerce applications at CWS Technology Pvt. Ltd. I specialize in designing secure REST APIs, implementing authentication and authorization, and optimizing database and caching performance using Node.js, Express.js, MySQL, PostgreSQL, MongoDB, Redis, and Apache Kafka.

My work spans the backend stack — database design, query optimization, event-driven processing with Kafka, and cloud storage workflows with AWS S3. I also use AI-assisted development tools like Claude and Cursor to ship production-ready solutions efficiently.

Currently focused on building reliable, high-performing backend systems that improve business efficiency and user experience.