@jps27cse

CORS: The Silent Guardian You Keep Fighting Against

3d ago · 15 min read · The Story Begins in the Early Web Picture the early internet. The year is 2005. JavaScript is becoming powerful. Websites are starting to make network requests dynamically using XMLHttpRequest. Develo

SSL Certificates Explained: A Deep Dive into Encryption, Attacks, and How HTTPS Secures the Web 🔐

Feb 28 · 6 min read · When you open a website and see the 🔒 lock icon in your browser, you’re benefiting from SSL/TLS, one of the most important security technologies on the internet. But why does SSL exist? What problem

The Developer’s Guide to Prompt Engineering for AI Coding Assistants

Feb 27 · 6 min read · AI coding assistants are no longer a novelty — they’re part of our daily workflow. They autocomplete functions. They suggest bug fixes. They scaffold APIs. They even generate MVPs. But here’s the unco

Payment System Design at Scale

Feb 21 · 6 min read · What really happens when Maria taps “Confirm Ride”? Maria has an important meeting in 15 minutes. She doesn’t have cash. She opens Uber. Requests a ride. Gets dropped off. The payment? Invisible. Inst

How Transformers Work Inside an LLM (Step by Step)

Feb 9 · 3 min read · 1️⃣ Big Picture: Where Do Transformers Fit in an LLM? The full LLM pipeline looks like this: Input Text ↓ Tokenizer ↓ Embedding + Positional Encoding ↓ 🔥 Transformer Blocks (Core Brain) ↓ Softmax (Probability) ↓ Next Token 👉 The Tra...