How End-to-End Encryption Works: The Engineering Behind Signal & WhatsApp Security
In an era where privacy is a major concern, end-to-end encryption (E2EE) has become the gold standard for secure communication. Apps like…
The Cost of Microservices: When NOT to Use Them
Microservices have become a buzzword in modern software architecture. Tech giants like Netflix, Amazon, and Uber have popularized them, making…
How Do Multiplayer Games Like Fortnite and PUBG Handle Millions of Concurrent Players?
Multiplayer games like Fortnite and PUBG handle millions of concurrent players daily. Behind the smooth gameplay experience is a robust…
How OpenAI Serves Millions of Requests for GPT Models
Do you know that OpenAI’s GPT models handle millions of requests daily? But have you ever wondered how they manage such an enormous scale…
Is AI Making Developers Dumber? The Hidden Cost of Over-Reliance on AI
The Incident That Made Me Think Today, I had an experience that made me question the way AI is affecting developers. I gave one of my juniors…
Caching 101: How Tech Giants Like Cloudflare and Meta Speed Up Your Apps
In today’s digital age, speed is important. Users expect applications to be fast, responsive, and always available. To meet these…
Scaling WhatsApp: How WhatsApp Handles Billions of Messages Daily
WhatsApp, with over 2 billion users worldwide, processes an astronomical number of messages every day. Despite its simplicity, the engineering…
Understanding Rate Limiters in System Design
Rate limiters are foundational to modern system design, acting as gatekeepers that protect services from abuse while ensuring fair resource…
How to Build a Live Streaming Service on AWS with Amazon S3: An In-Depth Guide
Live streaming has become a cornerstone for businesses, from entertainment to e-learning. But building a scalable, secure, and efficient…
CDN Explained: How Content Delivery Networks Work and Their Algorithms
A Content Delivery Network (CDN) is a globally distributed network of servers designed to deliver web content efficiently, reliably, and…