System Design

20 Networking Concepts Explained in 15 Minutes

Networking can feel overwhelming, but a small set of concepts carries most of the weight in interviews and real-world systems.

Jun 2 • Ashish Pratap Singh

Monolith vs Microservices vs Modular Monoliths

Most software systems start simple. A small team, a single codebase, one database, and a few features.

May 12 • Ashish Pratap Singh

Top 10 API Gateway Use Cases in System Design

As your system evolves from a monolith to microservices, a pattern quickly emerges: every service starts rebuilding the same things.

Apr 12 • Ashish Pratap Singh

Tech Stack I used to build my coding platform (algomaster.io)

In September 2024, I started building AlgoMaster.io from scratch after quitting my job at Amazon.

Mar 22 • Ashish Pratap Singh

300+ Engineering Articles to Level Up Your System Design Skills

I’m excited to share a new GitHub repository where I’ve curated 300+ high-quality engineering articles, organized by top tech companies.

Mar 1 • Ashish Pratap Singh

Polling vs. Long Polling vs. SSE vs. WebSockets vs. Webhooks

How do you keep clients updated with server changes?

Feb 3 • Ashish Pratap Singh

How to Scale a System from 0 to 10 million+ Users

Scaling is a complex topic, but after working at big tech on services handling millions of requests and scaling my own startup (AlgoMaster.io) from…

Jan 29 • Ashish Pratap Singh

How Load Balancers Actually Work

Jan 8 • Ashish Pratap Singh

The Hidden Cost of Database Indexes

“Just add an index”. This is the most common advice when a query runs slow.

Jan 6 • Ashish Pratap Singh

I Created the Most Comprehensive System Design Interview Resource

I’m excited to launch my premium pattern-focused System Design interview resource.

Dec 25, 2025 • Ashish Pratap Singh

Pub-Sub vs Message Queue vs Message Broker

What’s the difference?

Dec 10, 2025 • Ashish Pratap Singh

Why You Should NEVER Start With Microservices

The hidden cost of premature optimization

Dec 8, 2025 • Ashish Pratap Singh

#nojs-banner { position: fixed; bottom: 0; left: 0; padding: 16px 16px 16px 32px; width: 100%; box-sizing: border-box; background: red; color: white; font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol"; font-size: 13px; line-height: 13px; } #nojs-banner a { color: inherit; text-decoration: underline; } This site requires JavaScript to run correctly. Please turn on JavaScript or unblock scripts