I went from 6 LPA to 26 LPA in just 7 months.

This is exactly what I did.

https://www.linkedin.com/posts/rajatgajbhiye_i-went-from-6-lpa-to-26-lpa-in-just-7-months-activity-7361402011294064641-iG6W

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I screwed up my Razorpay interview because I couldn't explain my projects properly.

Here is how you can explain your project in an interview

https://www.linkedin.com/posts/rajatgajbhiye_i-screwed-up-my-razorpay-interview-because-activity-7361617302762516481-IyOe

Give it a Like for better reach 👍🏼❤️

It took me 6 months 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

Before accepting a job offer:

(Do this to avoid working in a toxic workplace)

https://www.linkedin.com/posts/rajatgajbhiye_before-accepting-a-job-offer-do-this-to-activity-7361759392423129088-8Uzk

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After spending so much time struggling to prepare for software dev interviews, I have decided to help both you and myself by creating this.

https://www.linkedin.com/posts/rajatgajbhiye_after-spending-so-much-time-struggling-to-activity-7361986749125881857-8szO

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𝗧𝗵𝗶𝘀 𝗜𝗻𝗱𝗲𝗽𝗲𝗻𝗱𝗲𝗻𝗰𝗲 𝗗𝗮𝘆, 𝗹𝗲𝘁'𝘀 𝗿𝗲𝘀𝗼𝗹𝘃𝗲 𝘁𝗼:

 • Keep our streets as clean as our intentions
 • Pay our dues to the nation that nurtures us
 • Lift up those who deserve a helping hand
 • Share knowledge like seeds for tomorrow's harvest
 • Be the Indians our freedom fighters dreamed of

To celebrate this 𝗜𝗻𝗱𝗲𝗽𝗲𝗻𝗱𝗲𝗻𝗰𝗲 𝗗𝗮𝘆, I’m giving 20% OFF on my System Design Guide.

Do check out:
- https://topmate.io/rajat_gajbhiye/1446625?coupon_code=SD20

Code: SD20

𝗦𝗺𝗮𝗹𝗹 𝘀𝘁𝗲𝗽𝘀. 𝗕𝗶𝗴 𝗱𝗿𝗲𝗮𝗺𝘀. 𝗕𝗲𝘁𝘁𝗲𝗿 𝗜𝗻𝗱𝗶𝗮.
𝗛𝗮𝗽𝗽𝘆 𝗜𝗻𝗱𝗲𝗽𝗲𝗻𝗱𝗲𝗻𝗰𝗲 𝗗𝗮𝘆 🇮🇳

I cleared every round… until one question ended it all 💔

Lost a ₹28 LPA Cashfree Payments offer. Still hurts

https://www.linkedin.com/posts/rajatgajbhiye_i-cleared-every-round-until-one-question-activity-7362128307783368704-XQEO

Do comment your views :)

I have researched lots of product-based companies, 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-7362332279987146754-HTDr

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Give it a Like for better reach ❤️

You don’t go deeper than StackOverflow fixes
You don’t study OS, networks, or databases properly
You don’t practice DSA or system design

https://www.linkedin.com/posts/rajatgajbhiye_you-dont-go-deeper-than-stackoverflow-fixes-activity-7362483913698476033-e9w2

Comment your views :)

No matter if you have 1, 2, or 5 years of experience.

Truth is:

https://www.linkedin.com/posts/rajatgajbhiye_no-matter-if-you-have-1-2-or-5-years-of-activity-7362696382127759361-I1Cu

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One day, you’ll sit in an interview and they’ll ask: “Design Netflix.”

And in that moment… you’ll either smile, or you’ll panic.

That smile comes only if you’ve prepared the right way.

That’s why I put together the System Design Comprehensive Guide.

People from this same community are already using it to crack interviews.

Don’t be the one left behind.
- https://lnkd.in/dte69Z5N

Microsoft pays around 30-45LPA for SDE-1 and 50-65LPA for SDE-2

This is the classic question they generally ask

https://www.linkedin.com/posts/rajatgajbhiye_microsoft-pays-around-30-45lpa-for-sde-1-activity-7362851658634088448-Er-v

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Zoho Interview Experience
Role: Software Engineer (Backend, Distributed Systems)
Compensation: 25LPA
Experience Level: 5+ years

https://www.linkedin.com/posts/rajatgajbhiye_zoho-interview-experience-role-software-activity-7363084487053688832-jr07

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System Design is so easy when you follow these 5 steps.

https://www.linkedin.com/posts/rajatgajbhiye_system-design-is-so-easy-when-you-follow-activity-7363203098397368320-8J9D

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Give me 2 minutes,

I’ll tell you how to get interview calls

https://www.linkedin.com/posts/rajatgajbhiye_give-me-2-minutes-ill-tell-you-how-to-activity-7363441034367762432-2vHX

Get your resume reviewed ❤️

Guys, real talk
DSA alone won’t get you into top companies.

You’ll clear coding rounds, but then they’ll ask you:
“Design WhatsApp… design Uber… design Instagram.”

And that’s where most people freeze.

That’s exactly why I made the System Design Guide.
It breaks down those scary interview questions into simple, repeatable patterns.

Trust me, this is the shortcut I wish I had when I started.
- https://lnkd.in/dte69Z5N

If anybody is saying System Design is overrated in software engineering, ask them to sit in 2-3 interviews for SDE2/SDE3

They quickly realize that mastery of DSA alone won’t land the job at top PBCs.

https://www.linkedin.com/posts/rajatgajbhiye_if-anybody-is-saying-system-design-is-overrated-activity-7363791853923545089-HJAG

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These 35 questions are the difference between ₹6 LPA and ₹20 LPA.

https://www.linkedin.com/posts/rajatgajbhiye_these-35-questions-are-the-difference-between-activity-7363934638303535105-wYzN

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System Design Interview Questions

https://www.linkedin.com/posts/rajatgajbhiye_system-design-interview-questions-%F0%9D%90%84%F0%9D%90%9A-activity-7364165798120050691-EHt3

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

Actually 80% of system design interview questions come from just 20% of topics? My guide will help you focus on what really matters.

𝗪𝗵𝗮𝘁’𝘀 𝗜𝗻𝘀𝗶𝗱𝗲?

𝗣𝗔𝗥𝗧 𝟭: 𝟰-𝗦𝘁𝗲𝗽 𝗥𝗼𝗮𝗱𝗺𝗮𝗽 (𝗜𝗳 𝗬𝗼𝘂𝗿 𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄 𝗜𝘀 𝗶𝗻 𝟭𝟱 𝗗𝗮𝘆𝘀)

1. How to Approach a System Design Interview
2. 15 Fundamental System Design Concepts
3. 3-Step Framework for System Design Interviews
4. Real-World System Design Examples

𝗣𝗔𝗥𝗧 𝟮: 𝗨𝗻𝗱𝗲𝗿𝘀𝘁𝗮𝗻𝗱 𝗦𝘆𝘀𝘁𝗲𝗺 𝗗𝗲𝘀𝗶𝗴𝗻 𝗳𝗿𝗼𝗺 𝗕𝗮𝘀𝗶𝗰𝘀 𝘁𝗼 𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱

𝗦𝘆𝘀𝘁𝗲𝗺 𝗗𝗲𝘀𝗶𝗴𝗻 𝗧𝗼𝗽𝗶𝗰𝘀 𝗖𝗼𝘃𝗲𝗿𝗲𝗱:
1. Introduction to System Design
2. Scalability and Performance
3. Latency and Throughput
4. Architectural Patterns
5. Availability and Availability Patterns
6. Replication
7. Consistency and Consistency Patterns
8. CAP Theorem
9. PACELC Theorem
10. Database and Storage
11. Relational Databases
12. Scaling Databases
13. Sharding and Partitioning
14. Non-Relational Databases
15. Choosing the Right Database
16. Caching
17. Asynchronous Processing
18. Message Queues (Kafka, RabbitMQ)
19. Monolithic vs. Microservices Architecture
20. Event-Driven Architecture
21. API Gateway and Backend for Frontend
22. REST, GraphQL, and gRPC
23. Long Polling, WebSockets, Server-Sent Events
24. Design Patterns
25. Resiliency
26. Designing for Resiliency
27. Load Balancers
28. Circuit Breakers
29. System Essentials
30. Consistent Hashing
31. Real-World Architectures & Engineering Blogs

𝗣𝗔𝗥𝗧 𝟯: 𝗨𝗹𝘁𝗶𝗺𝗮𝘁𝗲 𝗖𝗵𝗲𝗮𝘁 𝗦𝗵𝗲𝗲𝘁
This quick-reference cheat sheet covers the most important system design concepts, making it easy to review key points right before your interview.

𝗣𝗔𝗥𝗧 𝟰: 𝟱𝟬 𝗗𝗲𝘁𝗮𝗶𝗹𝗲𝗱 𝗤&𝗔 𝗳𝗼𝗿 𝗟𝗟𝗗 𝗮𝗻𝗱 𝗛𝗟𝗗
50 carefully selected interview questions, covering both Low-Level Design (LLD) and High-Level Design (HLD). Each question comes with:
- Clear explanations
- Diagrams for better understanding
- Real-world examples
- Practical insights to simplify complex topics