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I am Sandip, originally from West Bengal. I hold an MTech degree in computer Science, graduating in 2020. Currently, I am employed as a Software Engineer.

25/12/2025

Ever clicked Pay Now twice and got scared 😰 thinking what if money gets deducted twice?

That’s where Idempotency saves the day 😌✅

In this 1-minute video, you’ll learn:
👉 What idempotency really means
👉 Why retries don’t cause double payments
👉 How backend systems handle network failures safely
👉 Real-world examples from payments & order booking

This is a must-know system design concept for every backend engineer and developer ⚙️

👍 Like this video if it helped

🚀 Follow me for more system design & backend concepts explained simply

24/12/2025

Ever wondered why apps suddenly say “Service Unavailable, try again later”? 🤔

This short explains the Circuit Breaker Pattern — a powerful system design technique that protects your backend from cascading failures, slow services, and retry storms.

You’ll learn:
⚡ What a Circuit Breaker is
🔌 Why services stop calls when failures increase
💥 How retries multiply the load
🛑 The three states: Closed, Open & Half-Open
🏠 A simple real-world analogy (electric fuse)
If this video gets 1,000 likes, I’ll make a detailed deep-dive video on Circuit Breakers!

👉 Follow me for more such tech related contents.

23/12/2025

Why do apps say “Too Many Requests”? 🤔
In this video, I explain Rate Limiting in the simplest way — how systems protect themselves during heavy traffic, bot attacks, and sudden spikes like Big Billion Day.

You’ll learn:

What Rate Limiting is

Why every scalable system needs it

Real-world example + simple analogy

If you want a detailed explanation of all these algorithms, help me reach 1,000 likes, and I’ll make a full breakdown video! 🚀

Follow for more 1-minute System Design videos.

#ᴠɪʀᴀʟᴠɪᴅᴇᴏ

22/12/2025

Ever wondered why Netflix, YouTube, and Instagram load instantly, but some websites feel painfully slow? 🤔

The secret is CDN (Content Delivery Network) 🚀

In this short video, I explain:

What a CDN is

A simple real-world example anyone can understand

How CDN reduces latency and improves website speed

Why global apps feel fast no matter where you are

👉 CDN doesn’t make servers faster — it makes them closer.

If you enjoy system design explained in simple terms,
don’t forget to like, share, and follow for daily tech shorts 👨‍💻✨

💘🌃♥️📀♥️👉💘 ❣️

19/12/2025

This One Component Saves Apps From Crashing ⚡
Ever wondered how apps like Amazon, Flipkart, or Paytm stay fast even when millions of users are online at the same time?

The secret is a Load Balancer 🚦
Just like a smart manager in a restaurant, it distributes users across multiple servers so no single server gets overloaded.

In this short, you’ll understand: ✔ What a load balancer does
✔ A simple real-world example
✔ Why it’s critical for scalability and performance

Follow for daily system design & tech explained in simple terms 👨‍💻

💯💯💯❤️❤️

18/12/2025

Imagine Big Billion Day 🛒
Millions of users hit your app at the same time…
Cache expires…
And suddenly everyone rushes to the database 💥

🔥 That chaos is called Cache Stampede.

17/12/2025

Why CAP theorem is crucial for building scalabile System now.
🖥️

15/12/2025

Scalability is a system’s ability to handle increased load without breaking or slowing down.

15/12/2025

Availability is the percentage of time a system is up and usable.

20/07/2025

🎯 Want to Learn Java Coding for FREE? 👩‍💻👨‍💻

Hi there!
Are you a beginner who wants to learn Java programming but don’t know where to start?

I'm a Software Engineer with 8+ years of backend development experience in Java, and I’ve decided to offer 4 FREE online classes to help passionate learners like you get started with Java!

📌 What You'll Learn:
✅ Java Basics (Syntax, Variables, Loops, Conditionals)
✅ Classes, Objects & Methods
✅ Hands-on Practice & Small Projects
✅ Clear your doubts LIVE during class!

🗓️ When?
📅 Weekends (Sat & Sun) – 1 hour per session
📍 Where? Online (Google Meet / Zoom)

🔧 Requirements:
💻 A laptop or desktop
🌐 Internet connection
🔥 Willingness to learn!

🎁 Bonus: If you're truly interested, I’ll guide you on how to build your first mini project in Java!

🚨 Seats are limited to ensure personalized attention.
📩 DM me now to reserve your seat and unlock your coding journey!

Let’s make learning Java fun and easy — together!

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