Study these 45 problems well and you have prepared for 99% of your System Design Interviews

➤ 𝐄𝐚𝐬𝐲
1. Design Parking Garage
2. Design Vending Machine
3. Design Distributed Cache
4. Design Authentication System
5. Design Distributed Job Scheduler
6. Design…

You can pass the DSA round.
But if you fumble DBMS basics during the interview, it’s game over.

Most candidates grind LeetCode like crazy...

But freeze when asked about normalization, indexing, or transactions.

Don’t let that be you.

Here are 50 Basic…

🤯 Just Got Blindsided by This Java Interview Question! 🤯

Can you answer this ?

ArrayList interview questions.
Level Basic.

💡 Ever wondered how your SQL queries actually run behind the scenes?
It's not always SELECT → FROM → WHERE as we write it!
Here's the actual order of SQL query execution — and it's a game changer when you're optimizing complex queries or preparing for interviews.…

Second installment of our Java collections series.
Topic Linkedlist

Join us on a 7-day journey to master the Sliding Window technique — one of the most powerful and commonly used problem-solving approaches. Each day, you'll tackle curated problems designed to help you deeply understand and apply this concept with confidence.

Behind the scenes of a Java Program.

1. .java file-> You write the code
2. javac -> Compiles code to .class (bytecode)
3. java -> JVM runs the bytecode

🚀 Struggling with YAML to Properties conversion? You're not alone!
As developers, we've often found ourselves manually converting YAML files to .properties—a time-consuming and error-prone task. That's why we at Badkul Technology decided to solve this once…

We’re hiring: Performance Test Engineer (5+ Years Experience)

Locations: Karnal / Jabalpur / WFH / Hybrid

Type: Full-time
Hiring Partner: Badkul Technology / Badkul Technology

We are seeking a skilled Performance Test Engineer with a solid background in…