Grind Engineer

One Concept at a Time!
From coding basics to Advanced System Design.
Learn System Design every week.

Read what engineers from
uber, Google, Microsoft and Amazon are reading.

latest posts

Distributed System

What is RAG (Retrieval Augmented Generation) ?

Jun 6, 2026

•

4 min read

What is RAG (Retrieval Augmented Generation) ?

The architecture pattern that turns a frozen, hallucinating model into a grounded expert on your documents

Distributed System

System Design was HARD Until I Learned These 20 Patterns

Jun 2, 2026

•

6 min read

System Design was HARD Until I Learned These 20 Patterns

Stop memorizing full architectures. Learn the patterns and you can design anything.

Distributed System

May 31, 2026

•

4 min read

REST vs GraphQL vs gRPC

A decision framework tested across public APIs, complex frontends, and high throughput microservices

netflix

May 29, 2026

•

4 min read

How Netflix Delivers Video to 300 Million Users Without Buffering

A deep dive into how Netflix built a global content delivery network from scratch

LLD

LLD was HARD Until I Learned These 12 Design Patterns

May 26, 2026

•

5 min read

LLD was HARD Until I Learned These 12 Design Patterns

Tested across 50+ LLD interview questions at Google, Amazon, and Uber

Distributed System

How Databricks Rate Limits Billions of API Calls at Near Zero Latency

May 23, 2026

•

4 min read

How Databricks Rate Limits Billions of API Calls at Near Zero Latency

How Databricks moved from Redis to in memory counting and batch reporting for 10x lower latency

Distributed System

Scaling was HARD Until I Learned These 7 Stages

May 22, 2026

•

4 min read

Scaling was HARD Until I Learned These 7 Stages

The 7 scaling stages every system design interview expects you to know

Top 10 System Design Concepts Every Engineer Must Know

May 17, 2026

•

5 min read

Top 10 System Design Concepts Every Engineer Must Know

You can memorize architectures or you can understand the 10 ideas behind all of them. One of those approaches actually works under pressure.

Developer Productivity

CLAUDE.md: The Complete Guide to Claude Code's Most Important File

May 8, 2026

•

4 min read

CLAUDE.md: The Complete Guide to Claude Code's Most Important File

Most engineers either skip it or overload it. Here is what the 13KB power users actually put in theirs.

Claude Code

Apr 15, 2026

•

4 min read

Claude Code Drama: 6,852 Sessions Prove Performance Collapse

6,852 sessions. 234,760 tool calls. A 73% collapse in reasoning depth. An AMD AI Director just dropped forensic evidence that Claude Opus 4.6 got quietly downgraded in March 2026. Anthropic says it's

Featured Posts

Coding

MCP Explained: A Universal Protocol for AI Integrations

Jun 19, 2025

•

3 min read

MCP Explained: A Universal Protocol for AI Integrations

How the Model Context Protocol Drives Real-World Agent Behavior.

Software Engineering

Apr 27, 2025

•

3 min read

Elasticsearch 101: Part 1

An Introduction to the Basics of Search and Indexing with Elasticsearch

Redis

Apr 14, 2025

•

3 min read

Why Redis Is Everywhere ?

From caching and queues to leaderboards and streams, Redis keeps things moving.

CAP Theorem

Apr 7, 2025

•

3 min read

CAP Theorem Explained

Theorem that can make or break your system design interview!

Grind Engineer

What is RAG (Retrieval Augmented Generation) ?

System Design was HARD Until I Learned These 20 Patterns

REST vs GraphQL vs gRPC

How Netflix Delivers Video to 300 Million Users Without Buffering

LLD was HARD Until I Learned These 12 Design Patterns

How Databricks Rate Limits Billions of API Calls at Near Zero Latency

Scaling was HARD Until I Learned These 7 Stages

Top 10 System Design Concepts Every Engineer Must Know

CLAUDE.md: The Complete Guide to Claude Code's Most Important File

Claude Code Drama: 6,852 Sessions Prove Performance Collapse

Featured Posts

MCP Explained: A Universal Protocol for AI Integrations

Elasticsearch 101: Part 1

Why Redis Is Everywhere ?

CAP Theorem Explained

Subscribe to Grind Engineer