Chetan sai Vatti

Full Stack Developer Intern

TOSS Solutions

Feb 2026 - Present

Developed and enhanced a production-grade Vendor Management System (VMS) using React, Node.js, Express, TypeScript, and MongoDB, streamlining end-to-end vendor onboarding lifecycle management. Designed and implemented 40+ REST APIs supporting vendor onboarding, invoice processing, document verification, and multi-stage approval workflows. Built 15+ dynamic React forms with conditional rendering, reusable components, validation, file uploads, and seamless frontend-backend integration. Implemented Role-Based Access Control (RBAC) across 10+ user roles. Developed multi-stage approval workflows supporting Domestic, International, and Government vendors. Integrated JWT authentication, OTP-based verification, document upload flows, and secure REST APIs while collaborating through Git and Azure DevOps in an Agile environment.