Amazon Software Development Engineer (SDE I) interview questions

Amazon Dublin Frontend Engineer (New Grad) – Rejected After Phone Screen Wanted to share my interview experience so it helps others in the process. Timeline: Applied for SDE-1 (India AUTA) for multiple Roles/Job IDs on June 25 → Got 2 OAs. Applied for Frontend Engineer Dublin on July 23 → Directly got Phone Screen (probably skipped OA because of previous interest form). Total Rounds: Round 0: Resume Shortlisting Round 1: Online Assessments (OA) Round 2: Phone Screen OA 1 (India SDE-1): Difficulty: Medium-Hard Topics: DSA-heavy — I can’t share exact Qs, but expect standard high-quality Amazon-style problems. Time: Almost took 50+ minutes. OA 2: Difficulty: Medium Topics: Arrays, Sliding Window, HashMaps — time-sensitive, edge-case heavy. Time: Was able to complete in 13 minutes. Phone Screen (Dublin FEE): DSA Problem: Focused on Binary Search + Prefix Sum, with optimal solution via Segment Tree. I gave a brute-force O(N) first, then tried optimizing (Binary Search in O(log N)) — implemented ~50%. Couldn’t finish fully due to time constraints. LPs (Leadership Principles): Took 40+ minutes. Very important. Interviewer asked to structure responses using STAR and go deep into past experiences. No frontend questions. Outcome: Rejected. My Reflection: LP part went well. Interviewer was supportive. I struggled a bit with DSA optimization under time pressure. Was my first serious interview at this level — learned a ton. 📌 Will keep applying. This process gave me clarity on what to improve next.

1. Online Assessment (OA): A 60–90 minute HackerRank test featuring 2-3 Medium-level DSA questions (arrays, strings, trees). 2. Technical Phone Screen (Optional): Sometimes conducted for experienced roles, this is a 60-minute session focusing on one or two DSA problems and some behavioral questions. 3. Virtual Interview Loop (3-4 Rounds): The core process consisting of 3-4 interviews, each lasting 60 minutes. DSA/Coding Rounds: 2-3 rounds focused on algorithms and data structures, requiring code to be written in a live, shared editor. Behavioral Round (Leadership Principles) 4. HR