I have an on-site interview with Amazon Alexa team next week, any idea what to expect in the interview and TC for SDE 2 ?!
Grokking the system design interview - Educative.io
Algorithms focus on BFS/DFS over a graph/grid.
Some knowledge about OOP.
Data Structures: Trees and HashMaps
Some useful links: https://github.com/donnemartin/system-design-primer