Online Assessment (OA) Platform: Amazon’s internal coding portal / Hackerrank Questions: Array manipulation (prefix sums or sliding window) String or hashmap-based problem (e.g. find first unique character) Debugging question (identify and fix logical errors) Difficulty: Medium–Hard Focus Areas: Data Structures (Arrays, Strings, HashMaps), Time Complexity, Edge Cases Technical Round 1 (Data Structures & Algorithms) Duration: 60 minutes Questions Asked: Implement LRU Cache using LinkedHashMap or custom DLL + HashMap. Solve “Longest Substring Without Repeating Characters” (Two Pointer / Sliding Window approach). Follow-up: Discuss time and space complexities. Additional Discussion: Code optimization Handling large input cases and memory efficiency Technical Round 2 (System Design + Problem Solving) Duration: 60 minutes Questions: Design a URL Shortener / BookMyShow Ticket Booking System (Low-Level Design) Implement core classes and relationships Asked about OOP principles, Design Patterns (Singleton, Factory) Follow-ups: How would you scale the system?

Three rounds of one hour interviews in a row. There was an emphasis on leadership principles for behavioral questions. One technical interview, one bar raiser interview, one high level design interview.