Microsoft | L62 | India | Nov 2022

Status: sde2 in FAANG+ company Position: l62 microsoft

Codility screening round

Standard string problem.(Easy) Standard palindrome find problem. (Medium) Got email that i am selected for next rounds.

Round 1 : Coding

Hard problem : very similar to Count Integers in Intervals string based problem on tries : More on theorical concepts and implemenatation

Round 2 :

system design on how we can build a streaming service like hotstar which allows users to give reactions in real time and i need to show the average mood of audience. We covered all aspects from hld, to database choices, caching choices, auth choices, infra as code , microservices etc.

ROund 3 : LLD + HLD round

build a logging library . (LLD) what changes are required to make a distributed logging/tracing. At the end we ended up discussing something like zipkin apart from basic lld of logging system.

Round 4: techno managerial

• Standard question like where you see in 5 years.
• Why you want to join micro, etc.
• HLD on building a rate limiter
• We discussed initially on a single machine using multithreading.
• Then without multithreading but with local storage.
• Finally distributed rate limiter.

I got to knbow that i have cleared the rounds in few days.

Over all the process was smooth but rounds were hard. I have given microsoft rounds before , and they usually are easy/medium.here i was asked to code a lot, from interfaces, to actual multithreaded implementations