Applied through referral

Codility Assessment :
2 LC medium questions

Round 1:
Q1. Next Greater Element
Q2. LFU Cache

Round 2:
Q1. Decode String
Q2. LC Medium

Round 3 LLD:
Design Notification System

Round 4 (AA):
Behavioural question also project related question. Design memory management system.

Verdict : After a week got confirmation from recruiter.