Round 1 :
Taken by software engineer
Introduction and current project related questions

1 easy problem on Binary Tree (DFS)

some project related question

Round 2:
Taken by senior Engg MAnager

Questions raelated to current project
HLD of current project

Question - Design Notification Service HLD

Round 3:
Taken by Director of Engg

Questions on Current project
Behavioral questions like how will u manage conflict , ensure task delivery on deadline, scrum/sprint process importance, etc.

Round 4 : HR round
behavoural questions like why celigo, why leaving current job , etc.

Overall interview exerience was nice, inerviewers were friendly

In HR Round, they informed that they will reach out soon with an offer but they never did.