24 Technologies that WhatsApp is Built with 🌱

With over two billion active users, WhatsApp is a masterclass in distributed systems engineering. To achieve massive concurrency and near-zero latency, the platform relies on a specialized stack that balances legacy reliability with bleeding-edge innovation. As a systems architect, I’ve analyzed the 24 essential components that allow this ecosystem to function seamlessly. 1. The Backend (Server) Layer The foundation of WhatsApp is built for high availability and massive message throughput. Erlan