Archive

Dive into a collection of past posts and rediscover timeless content.

Distributed System

What is RAG (Retrieval Augmented Generation) ?

Jun 6, 2026

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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

Aditya Singh Sisodiya

Distributed System

System Design was HARD Until I Learned These 20 Patterns

Jun 2, 2026

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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.

Aditya Singh Sisodiya

Distributed System

May 31, 2026

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4 min read

REST vs GraphQL vs gRPC

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

Aditya Singh Sisodiya

netflix

May 29, 2026

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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

Aditya Singh Sisodiya

LLD

LLD was HARD Until I Learned These 12 Design Patterns

May 26, 2026

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5 min read

LLD was HARD Until I Learned These 12 Design Patterns

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

Aditya Singh Sisodiya

Distributed System

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

May 23, 2026

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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

Aditya Singh Sisodiya

Distributed System

Scaling was HARD Until I Learned These 7 Stages

May 22, 2026

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4 min read

Scaling was HARD Until I Learned These 7 Stages

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

Aditya Singh Sisodiya

Top 10 System Design Concepts Every Engineer Must Know

May 17, 2026

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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.

Aditya Singh Sisodiya

Developer Productivity

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

May 8, 2026

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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.

Aditya Singh Sisodiya

Claude Code

Apr 15, 2026

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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

Aditya Singh Sisodiya

Archive

Dive into a collection of past posts and rediscover timeless content.

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

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