Amazon - SDE - Technical Phone Screen

Amazon - SDE - Technical Phone Screen

BS in VS
YOE 5

Questions Asked:

  1. Reverse a Linked List:
    Example 1:
    Input: head = [1,2,3,4,5]
    Output: [5,4,3,2,1]
    Explanation: You must reverse the linked list in-place.
    Example 2:
    Input: head = [1,2]
    Output: [2,1]
  2. Design a URL Shortener:
    Discussed encoding strategy (base62), handling collisions, database schema, and scalability considerations.
  3. Behavioral:
    Tell me about a time you improved system performance. Focused on metrics and impact of optimization.

Notes: Interview lasted around 50 minutes. One coding question, one system design, one behavioral.