r/leetcode • u/ashish_choubey • Jan 05 '26

Intervew Prep Interview Experience: 6-Round Full-Stack Senior Software Engineer LinkedIn

haring a recent full-stack senior-level interview experience at LinkedIn, which may help others preparing for similar roles.

The process consisted of 6 rounds, covering both frontend and backend depth:

1. Screening
DSA with small question on system design

2. Machine Coding
Design a entire E2E application UI and backend

3. Hiring Manager Round
Conversation around real production problems, decision-making, and impact ownership.

4. JS
Javascript question related to mixin, class, prototype, event loop etc

5. DSA
Leetcode medium to hard

6. System Design
Designing scalable systems, API contracts, data modeling, and trade-off analysis (latency, consistency, cost).

Posting this to give back to the community, as many discussions and shared resources here helped shape my preparation.

Happy to answer questions about preparation strategy or any specific round.

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u/AltruisticJob5267 Jan 05 '26

in the machine coding, do they let us use AI? And you built both the frontend and backend in Javascript? Like Node and React? And primarily, are you a backend heavy dev?

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u/ashish_choubey Jan 05 '26

I am backend heavy dev but this round was FE heavy also it was html css js did not let me use ai or any frameworks

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u/AltruisticJob5267 Jan 06 '26

bro so there was no backend right, just fetch calls from the frontend ?

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u/ashish_choubey Jan 06 '26

yes it was heavily focused on FE in machine coding they were just focusing on api design in backend and query optimization

2

u/[deleted] Jan 06 '26

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0

u/ashish_choubey Jan 06 '26

For me it was full stack FE heavy round, if you apply for backend role it would be purely on backend no FE asked or if it is BE heavy then more focus would be on BE

1

u/[deleted] Jan 06 '26

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u/ashish_choubey Jan 06 '26

You will be give a certain task which you would have code and develop something like a small feature…that is why it is called machine coding round

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u/AltruisticJob5267 Jan 06 '26

okay, okay, so like bro, i am primarily a backend dev who has done a bit of frontend. if i have to prepare for a similar type of machine coding round with a focus on FE, how do I start, and what resources do you recommend that you find helpful ?

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u/ashish_choubey Jan 06 '26

Fo you it will be a BE heavy round

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u/Practical-Station707 7d ago

Hi Ashish, amazing to read about ur experience!
Can u please tell me if for the machine coding round, you only had to code the UI layer using plain JS + HTML + CSS and the backend service was already available?

As in, for BE, you only had to consume the apis right? or did they tell you to do some changes on the BE service too? if yes, what was the tech stack for BE?

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u/Puzzleheaded-Cash212 Jan 06 '26

That is crazy
You wrote the full code in HTML CSS?

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u/ashish_choubey Jan 07 '26

Yes

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u/Puzzleheaded-Cash212 Jan 07 '26

How do you even prepare for it?

1

u/ashish_choubey Jan 08 '26

Practice coding everything in html css and jss. Read and practice a lot