OA:

1. https://leetcode.com/problems/reorder-data-in-log-files/
2. https://leetcode.com/discuss/interview-question/542597/

Virual onsite (5 rounds):

1. Coding - LPs + https://leetcode.com/problems/word-ladder/
2. Behavioral - LPs
3. System design - LPs + designing an API Rate Limiter
4. OOD - LPs + https://leetcode.com/discuss/interview-question/609070/Amazon-OOD-Design-Unix-File-Search-API
5. Coding - LPs + graph related question(DFS/BFS)

Good luck!