1. Online OA (Rather difficult, did not get all test cases for 1 of 2 questions)
2. Recruiter screening
3. 30 min Technical phone screening (easy-medium LeetCode)
4. Final round:

• System design (design a system for coupons)
• Algo round (Flood fill)
• Algo round (Implement API for sorting using heaps, organize data based on friends list and return as an array of objects)
• Algo round (Find the biggest N running sum, a dynamic programming question)

Downgraded to SDE 1 offer

Algo/Datastructure + System Design

Each interviewer asked LP questions for the last 10-15 minutes. You can easily prepare for this part if you can figure out what principle they are asking you about.