Snehasish Roy (@snehasishroy)

The String That Should Never Have Existed

Somewhere in a production system, a random string was born. It looked innocent. A transaction ID embedded in a metric name. A session token baked into a log field. A request hash used as an analytics

Apr 4 · 7 min readsnehasishroy.com

Introducing AtomDB - A Strongly Consistent, Embedded KeyValue Database built from scratch

Over the past 1 year, I was working on an itch to build something - not to just vibe code - but to actually understand the primitives and build something useful. I thought, what better way to understa

Mar 21 · 17 min readsnehasishroy.com

Shuffle Sharding - the secret sauce behing AWS reliability

In a typical client-server architecture, requests from the client are forwarded to a random Application Server by the Application Load Balancer. When the request is a poison pill i.e. it crashes/hungs the server receiving the request, then all of you...

Jun 8, 2025 · 6 min readsnehasishroy.com

Building a Request Coalescer from Scratch

Let’s say you’re building a backend service. Things are going great — until traffic picks up. Suddenly, you notice something odd. You’re seeing multiple identical requests hitting your database or API. They all ask for the same thing and they all mak...

May 20, 2025 · 5 min readsnehasishroy.com

Understanding the basics of Kafka Binary Protocol

Apache Kafka is a distributed event streaming platform used for high-performance data pipelines. In this article, we will take a look at the under belly of the Kafka and see how communication happens between the Kafka client and server. Fundamentals ...

May 19, 2025 · 8 min readsnehasishroy.com

Snehasish Roy

About

Available for

Snehasish Roy's blogs

The String That Should Never Have Existed

Introducing AtomDB - A Strongly Consistent, Embedded KeyValue Database built from scratch

Shuffle Sharding - the secret sauce behing AWS reliability

Building a Request Coalescer from Scratch

Understanding the basics of Kafka Binary Protocol

Snehasish Roy

About

Available for

Snehasish Roy's blogs

The String That Should Never Have Existed

Introducing AtomDB - A Strongly Consistent, Embedded KeyValue Database built from scratch

Shuffle Sharding - the secret sauce behing AWS reliability

Building a Request Coalescer from Scratch

Understanding the basics of Kafka Binary Protocol

Snehasish Roy

About

Available for

Snehasish Roy's blogs

The String That Should Never Have Existed

Introducing AtomDB - A Strongly Consistent, Embedded KeyValue Database built from scratch

Shuffle Sharding - the secret sauce behing AWS reliability

Building a Request Coalescer from Scratch

Understanding the basics of Kafka Binary Protocol

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Snehasish Roy

About

Available for

Snehasish Roy's blogs

The String That Should Never Have Existed

Introducing AtomDB - A Strongly Consistent, Embedded KeyValue Database built from scratch

Shuffle Sharding - the secret sauce behing AWS reliability

Building a Request Coalescer from Scratch

Understanding the basics of Kafka Binary Protocol