Once you fall for System Design and Actual Software Engineering, you get bored learning or revising DSA.

I’ve curated a list of handy LeetCode posts on System Design interviews from top companies like 𝗠𝗘𝗧𝗔, 𝗚𝗼𝗼𝗴𝗹𝗲, 𝗔𝗺𝗮𝘇𝗼𝗻, 𝗨𝗯𝗲𝗿, 𝗮𝗻𝗱 𝗠𝗶𝗰𝗿𝗼𝘀𝗼𝗳𝘁.

https://www.linkedin.com/posts/rajatgajbhiye_once-you-fall-for-system-design-and-actual-activity-7338439432712138752-yF5g

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I have researched lots of product-based companies like Amazon, Microsoft, Netflix, Zomato, Goldman Sachs, Paytm, J.P. Morgan, etc., for SDE-1, and 2 roles, and found that these 20 system design questions are almost asked in every interview, both at the fresher and experienced levels.

https://www.linkedin.com/posts/rajatgajbhiye_i-have-researched-lots-of-product-based-companies-activity-7338795267791421440-avGD

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PhonePe Interview Experience
Compensation: 60L
Position: Software Engineer
Application Method: Direct Application

https://www.linkedin.com/posts/rajatgajbhiye_phonepe-interview-experience-compensation-activity-7339157602041233408-YQcE

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Harsh Truth but True

During the Interviews: DSA, LLD, HLD, JAVA, Spring boot, Javascript, Kafka, SQL, etc.

Actual Job: using IF/ELSE

Still, we must keep up-skill because competition is growing and in-depth knowledge is now in demand.

I'm sharing resources that can help you build a solid understanding of the topics

https://www.linkedin.com/posts/rajatgajbhiye_harsh-truth-but-true-during-the-interviews-activity-7339297890088931329-djl-

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As a Java Developer

Please learn

https://www.linkedin.com/posts/rajatgajbhiye_as-a-java-developer-please-learn-1-activity-7339506287883268096-hu22

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I analyzed 200+ System Design interview experiences. Here’s what hiring managers care about in 2025:

https://www.linkedin.com/posts/rajatgajbhiye_i-analyzed-200-system-design-interview-experiences-activity-7339646177090359297-9-Ao

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Solving 200-300 good Leetcode problems will only help you clear 50% of the rounds. You still have to master system design basics.

I struggled a lot until I sat down and focused deeply on the basics. Start with these basic & essential concepts:

https://www.linkedin.com/posts/rajatgajbhiye_solving-200-300-good-leetcode-problems-will-activity-7339879553797885952-jh3G

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DSA on SUNDAY

Here are 40 most asked DSA questions to clear your next interview -

https://www.linkedin.com/posts/rajatgajbhiye_dsa-on-sunday-here-are-40-most-asked-dsa-activity-7340010431215763456-Sgqf

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I've been building microservice architectures for about 4 years, and it's been sort of funny to see them become trendy, and then suffer a backlash. In my view, most of the hype around microservices got the concept totally wrong.

https://www.linkedin.com/posts/rajatgajbhiye_ive-been-building-microservice-architectures-activity-7340226643707228160-vXbd

If you're someone who wants to truly understand system design, architecture choices, and how real software is built, I'm sharing free content on my YouTube channel: https://youtube.com/@rajat_gajbhiye

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It took me two years to build this guide while working as a software developer. I’ve divided it into three parts:

Fifteen-Day Preparation Strategy – Get prepped with all the necessary concepts in just 15 days.

System Design Concepts – Everything you need to know about system design.

50 Solved Questions – Detailed answers with HLD diagrams, LLD code, and in-depth explanations.

Trust me, this guide focuses on the 20% of topics that are asked in 80% of system design interviews.

Check out the System Design KIT here: https://topmate.io/rajat_gajbhiye/1446625

PS: Use the coupon code SDE10 to get a 10% discount (only for the next few users, so GO CHECK IT OUT FAST!!!)

PayPal Interview Questions for Software Developer in 2025

https://www.linkedin.com/posts/rajatgajbhiye_paypal-interview-questions-for-software-developer-activity-7340384986237173760-HjSP

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Disappear till SEPTEMBER 2025 and..

Clear all System Design Rounds

Here is HOW can you do in 5 steps.

https://www.linkedin.com/posts/rajatgajbhiye_disappear-till-september-2025-and-clear-activity-7340589016402006016-ljOz

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I will never understand GIT it is so confusing 🙃

Git commands I used 99% of the time being a Software Engineer for 2+ years with the working flow:

https://www.linkedin.com/posts/rajatgajbhiye_i-will-never-understand-git-it-is-so-confusing-activity-7340744968765911040-XXBd

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I have researched lots of top MNCs like Amazon, Microsoft, Google, Uber, Tiger Analytics, Databricks, etc., for Data Engineer roles (since it's booming) and found that here are some topics that are asked in every interview, both at the fresher and experienced levels.

https://www.linkedin.com/posts/rajatgajbhiye_dataengineering-amazon-systemdesign-activity-7340951398173323264-830h

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System Design used to scare me.

I remember preparing for my first few interviews — reading random blogs, watching hours of YouTube videos, and still feeling lost when someone asked me about CAP or caching strategies. 😓

That’s when I realized…

System design isn’t about knowing everything. It’s about understanding the right things deeply.

Over time, I figured out that 80% of system design interview questions come from just 20% of concepts.

So, I created this guide:
Focused. Structured. Real-world backed.

Here’s what’s inside👇

✅ 4-Step Roadmap (esp. if your interview is in 15 days)
✅ 15+ core concepts broken down in simple terms
✅ Basics → Advanced (CAP, Queues, Microservices, Caching, DBs, etc.)
✅ 50 System Design Q&A (with diagrams + examples)
✅ Ultimate Cheat Sheet for quick revisions

Use coupon code SD20 for 20% OFF (limited slots only)

Check out the Guide here: https://topmate.io/rajat_gajbhiye/1446625?coupon_code=SD20

Hey fam,
A big THANK YOU to everyone who supported me over the last few days. Your comments, retweets, and messages truly meant a lot.

As a small token of gratitude, I’m sharing a FREE DSA Roadmap for all of you who stood by me.

Check it here: https://www.linkedin.com/posts/rajatgajbhiye_never-bet-against-dsa-trust-me-if-you-do-activity-7343278067865255938-YM22

Let’s keep growing and helping each other :)

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

https://www.linkedin.com/posts/rajatgajbhiye_study-these-45-problems-well-and-you-have-activity-7343514564866494465-rkfD

Most asked System Design Questions, save the post you’ll need it during interviews :)

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Don't aim for this:

Java - 25%
Spring Boot - 25%
Microservices - 25%
System Design - 25%

Aim for this:

Java - 100%
Spring Boot - 25%
Microservices - 25%
System Design - 25%

Master one skill deeply, then build around it!

https://www.linkedin.com/posts/rajatgajbhiye_dont-aim-for-this-java-25-spring-activity-7343648180137267200-gQea

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