Abdullah al Mubin

Senior Full‑Stack Engineer · Performance Optimizer · Architect & Planner · React · TypeScript · Next.js · Node.js · .NET · Microservices & Event‑Driven Architectures · Team Lead

Dhaka, Bangladesh Joined on Aug 15, 2021 amubin19@gmail.com

Work

Senior Software engineer at W3 Engineers Ltd.

Abdullah al Mubin

Jun 28

How I Built a Persona Chat Agent and Fought Hallucination — A RAG Story

#aiops #llm #rag #agents

6 min read

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Abdullah al Mubin

Jun 15

Database Indexes Explained Simply: Why Some Queries Take 1ms and Others Take 10 Seconds

#database #performance #backend #architecture

4 min read

Abdullah al Mubin

Jun 15

Database Sharding Explained With Real Examples: How Apps Scale Beyond a Single Database

#database #systemdesign #backend #architecture

4 min read

Abdullah al Mubin

Jun 11

I Thought One AI Agent Was Enough. I Ended Up Building Six

#ai #llm #agents #machinelearning

4 min read

Abdullah al Mubin

Jun 11

Read Replicas vs Sharding Explained Simply: When to Scale Reads vs When to Split Data

#database #systemdesign #backend #architecture

3 min read

Abdullah al Mubin

Jun 10

ACID Transactions Explained Simply: How Databases Never Lose Your Money, Orders, or Data

#database #backend #architecture #systemdesign

3 min read

Abdullah al Mubin

May 29

Optimistic UI Updates Explained Simply: How Apps Feel Instant Even Before the Server Responds

#frontend #systemdesign #webdev #react

3 min read

Abdullah al Mubin

May 29

Distributed Messaging Systems Explained Simply: How Kafka, RabbitMQ, and Modern Apps Really Work

#distributedsystems #systemdesign #kafka #eventdriven

3 min read

Abdullah al Mubin

May 29

How Notion Lets Everyone Edit the Same Document at Once Without Conflicts

#systemdesign #architecture #performance #webdev

4 min read

Abdullah al Mubin

May 29

CRDT vs Operational Transformation: How Google Docs and Notion Actually Avoid Edit Chaos

#architecture #backend #systemdesign #webdev

3 min read

Abdullah al Mubin

May 29

How Google Docs Lets 10 People Edit the Same Sentence Without Breaking It

#algorithms #computerscience #distributedsystems #systemdesign

3 min read

Abdullah al Mubin

May 29

Understanding Event-Driven Architecture (EDA) With Real-World Examples

#architecture #microservices #systemdesign #backend

4 min read

Abdullah al Mubin

May 7

The Diet Your App Deserves: Tree Shaking vs Dead Code Elimination

#webdev #javascript #performance #frontend

3 min read

Abdullah al Mubin

May 1

Stop Making Users Wait: Streaming SSR Explained with a Real-World Example

#webdev #frontend #nextjs #performance

3 min read

Abdullah al Mubin

May 1

Beyond SSR vs SSG: Partial Prerendering (PPR) Explained with a Real-World Story

#webdev #performance #javascript #nextjs

3 min read

Abdullah al Mubin

Apr 21

PostgreSQL Design at Scale: Normalization vs JSONB (A Real-World Guide)

#architecture #database #performance #postgres

4 min read

Abdullah al Mubin

Apr 18

WebRTC vs WebSocket Explained: When to Use What (A Real-World Story)

#webdev #architecture #frontend #javascript

3 min read

Abdullah al Mubin

Apr 17

PostgreSQL Performance Optimization: Why Connection Pooling Is Critical at Scale

#webdev #postgres #database #performance

3 min read

Abdullah al Mubin

Apr 14

WebRTC Video Calls Explained: Simpler Than You Think

#techtalks #webdev #frontend #web3

4 min read

Abdullah al Mubin

Aug 5 '23

Dictionary C#. Easier than we think.

#csharp #oop #webdev #dotnet

3 min read

Abdullah al Mubin

Jul 23 '23

react useContext. Easier than we think.

#react #reactnative #frontend #javascript

2 min read

Abdullah al Mubin

Jul 22 '23

react useMemo, useCallback. Easier than we think.

#react #reactnative #javascript #frontend

4 min read

Abdullah al Mubin

Jul 18 '23

React useReducer. Easier than we think.

#react #javascript #frontend #reactnative

4 min read

Abdullah al Mubin

Jul 9 '23

Linked List Javascript. Easier than you think.

#javascript #react #datastructures #node

4 min read

Abdullah al Mubin

Jun 18 '23

CSS animation, Easier than we think.

#css #html #animation #design

5 min read

Abdullah al Mubin

Jun 11 '23

Node js file system, Easier than we think(1).

#node #javascript #react #programming

3 min read

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Abdullah al Mubin

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How I Built a Persona Chat Agent and Fought Hallucination — A RAG Story

Want to connect with Abdullah al Mubin?

Database Indexes Explained Simply: Why Some Queries Take 1ms and Others Take 10 Seconds

Database Sharding Explained With Real Examples: How Apps Scale Beyond a Single Database

I Thought One AI Agent Was Enough. I Ended Up Building Six

Read Replicas vs Sharding Explained Simply: When to Scale Reads vs When to Split Data

ACID Transactions Explained Simply: How Databases Never Lose Your Money, Orders, or Data

Optimistic UI Updates Explained Simply: How Apps Feel Instant Even Before the Server Responds

Distributed Messaging Systems Explained Simply: How Kafka, RabbitMQ, and Modern Apps Really Work

How Notion Lets Everyone Edit the Same Document at Once Without Conflicts

CRDT vs Operational Transformation: How Google Docs and Notion Actually Avoid Edit Chaos

How Google Docs Lets 10 People Edit the Same Sentence Without Breaking It

Understanding Event-Driven Architecture (EDA) With Real-World Examples

The Diet Your App Deserves: Tree Shaking vs Dead Code Elimination

Stop Making Users Wait: Streaming SSR Explained with a Real-World Example

Beyond SSR vs SSG: Partial Prerendering (PPR) Explained with a Real-World Story

PostgreSQL Design at Scale: Normalization vs JSONB (A Real-World Guide)

WebRTC vs WebSocket Explained: When to Use What (A Real-World Story)

PostgreSQL Performance Optimization: Why Connection Pooling Is Critical at Scale

WebRTC Video Calls Explained: Simpler Than You Think

Dictionary C#. Easier than we think.

react useContext. Easier than we think.

react useMemo, useCallback. Easier than we think.

React useReducer. Easier than we think.

Linked List Javascript. Easier than you think.

CSS animation, Easier than we think.

Node js file system, Easier than we think(1).