Anmol Sehgal – Medium

Anmol Sehgal

The Architecture Behind DynamoDB: What Really Happens When You Read and Write Data

When you use DynamoDB, it feels almost magical. You send a PutItem or GetItem request, and data appears or disappears instantly. There are…

Oct 8

The Architecture Behind DynamoDB: What Really Happens When You Read and Write Data

Oct 8

Published in

Master AWS Kinesis in 15 Minutes

Think about this. Every time you watch a cricket match on Hotstar, scroll Instagram Reels, book a ride on Ola, or see live stock price…

Oct 4

Master AWS Kinesis in 15 Minutes

Oct 4

What Every Software Architect Can Learn from Facebook TAO

When you open Facebook and click to see who liked your post or who are the friends of your friends, the result shows up almost instantly…

Oct 1

What Every Software Architect Can Learn from Facebook TAO

Oct 1

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How Amazon’s Shopping Cart Never Goes Down

Imagine this. You’re shopping on Amazon, you add a phone case to your cart, and suddenly the page crashes. You refresh, and the item is…

Sep 28

How Amazon’s Shopping Cart Never Goes Down

Sep 28

How a CDN Works: From DNS Lookup to Your Screen

Every time you open Netflix, scroll through Instagram, or shop on Amazon, something remarkable happens behind the scenes. Videos start…

Sep 24

How a CDN Works: From DNS Lookup to Your Screen

Sep 24

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From JSON to Protobuf: Make Your APIs Faster and Lighter

If you have ever worked with APIs or microservices, you probably know how easy it is to send data using JSON. It is human-readable, widely…

Sep 20

From JSON to Protobuf: Make Your APIs Faster and Lighter

Sep 20

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The Hardest Problem in Databases… Solved by Google

When we talk about databases, most people imagine a simple table storing data, queried whenever needed. But at Google’s scale, databases…

Sep 17

The Hardest Problem in Databases… Solved by Google

Sep 17

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The Complete Guide to Java Multithreading: From Zero to Expert — Part IV

Welcome to Part IV of this multithreading journey.

Sep 13

The Complete Guide to Java Multithreading: From Zero to Expert — Part IV

Sep 13

Published in

The Complete Guide to Java Multithreading: From Zero to Expert — Part III

Welcome to Part III of this series on Java multithreading.

Sep 10

The Complete Guide to Java Multithreading: From Zero to Expert — Part III

Sep 10

Published in

The Complete Guide to Java Multithreading: From Zero to Expert — Part II

In Part I of this series, we covered the fundamentals of multithreading — thread lifecycle, synchronization basics, volatile, wait-notify…

Sep 6

The Complete Guide to Java Multithreading: From Zero to Expert — Part II

Sep 6

Anmol Sehgal

Anmol Sehgal

Senior Software Developer @ Amazon | ex Oracle OCI, Goldman Sachs, Expedia | Writing real-world lessons on Java, system design & production-scale architecture.

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