ExamVantage is a production-ready, enterprise-grade multi-tenant SaaS platform built to automate exam generation, question bank extraction, HMAC anti-cheat verification, and multi-format document exporting. The platform comprises a centralized Node.js (Express TypeScript) REST API featuring Nodemailer SMTP email authentication, Groq AI section batching, cryptographic HMAC-SHA256 signing, and a high-performance React 18 single-page application built with TypeScript, Redux Toolkit, AES-256 CryptoJS token storage, and TailwindCSS aesthetics.