Skilled Coder

How would you design a system to send 100,000 notifications?

Designing a Notification System That Actually Scales

Oct 1 • 

Skilled Coder

20

September 2025

The Hardest Part of Engineering Isn’t Programming

It’s alignment, collaboration, and making systems work inside organizations

Sep 6 • 

Skilled Coder

12

August 2025

YouTube System Design from First Principles

Explained Like You’re 5, But Smarter

Aug 31 • 

Skilled Coder

18

Why Postgres Made MongoDB Less Special

The NoSQL Revolution That Strengthened SQL

Aug 12 • 

Skilled Coder

23

4

The Step‑by‑Step Journey of Scaling a Service to 1M Users

From Zero to a Million Users

Aug 2 • 

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21

July 2025

5 Uncommon Habits for Writing Truly Great Unit Tests

Unit Testing Tips You Wish You Knew Earlier

Jul 26 • 

Skilled Coder

13

System Design Prerequisites You Should Always Consider

The Checklist I Wish I Had Before Designing My First Scalable System

Jul 13 • 

Skilled Coder

19

Your Logs Are Lying to You (And What to Do About It)

Logs Are a Code Smell (Sometimes)

Jul 6 • 

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5

June 2025

Concepts You Only Learn After Running Code in Production

The Unwritten Rules of Production-Grade Software

Jun 22 • 

Skilled Coder

38

2

Customizing Your Zsh/Bash Prompt for Peak Productivity

Simple Shell Tweaks to Speed Up Daily Dev Work

Jun 5 • 

Skilled Coder

15

May 2025

How to Design a Tweet Scheduler System (That Scales to Millions)

The Backend Behind Scheduled Tweets

May 24 • 

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12

2

How to Reduce Load on Database in High-Traffic Backend Systems

Backend Strategies That Actually Scale

May 16 • 

Skilled Coder

18