I recently interviewed for the SDE role at Amazon. The process was structured, professional, and technically challenging, just as expected from a company of this scale.

Interview Process:

• Online Assessment (OA): Two coding questions, primarily focused on arrays and strings. Moderate difficulty. One required optimal time complexity.
• Technical Round 1: Focused on Data Structures and Algorithms (Binary Trees, HashMaps). Also included a system design mini-case (low-level).
• Technical Round 2: Dived into real-world problem-solving and behavioral questions (STAR method). Asked about projects and coding decisions.
• Bar Raiser Round: This was intense. Behavioral focus with deep dives into Amazon Leadership Principles. Also tested ownership and conflict resolution.

Questions I Faced:

• Implement LRU cache

• Find duplicate elements in an array with constraints

• System design for a URL shortener

• "Tell me about a time when you had to challenge a decision"

• "Describe a time you built something from scratch"