Amazon | L6 SDE3 SDEIII | Interview Experience | June 2025 | Offer
Summary
I experienced an intense 2-month interview loop for an Amazon SDE3/L6 role in June 2025, which included a phone screen, low-level design, high-level design, DSA, Hiring Manager, and Bar Raiser rounds, ultimately receiving an offer which I rejected.
Full Experience
I wanted to share my full loop experience for Amazon SDE3/L6 role. Overall, the loop was intense and went on for 2 months. Here's the breakdown of each round:
Phone Screen (DSA Focus)
- Problem: Find the maximum total bitrate required by a video streaming service over time. I used a Line Sweep algorithm with a difference array approach.
- Follow-up: Discussed strategies to handle large input files efficiently.
- Leadership Principles (LPs): Focused on a project where I had to dive deep into technical data, propose solutions, and influence decisions. Got a lot of follow-ups on alternate approaches and what I could have done differently.
Round 1: Low-Level Design
- Topic: Design a monitoring and alert generation system based on metric streams.
- Focus Areas: System extensibility, clean abstractions, and alert thresholds.
- LPs: Insist on Highest Standards — discussion around setting quality benchmarks in large-scale React migrations.
Round 2: High-Level Design
- Topic: Hotel Booking System — end-to-end design for search and booking flows.
- Expectations: Scalability, DB design, eventual consistency, and system evolution.
- LPs: Dealing with ambiguity, long-term thinking.
Round 3: DSA + Coding
Problems:
- Task Scheduler
- Bus Routes
- LPs: Deliver Results — strong emphasis on impact and reliability.
Round 4: Hiring Manager Round
- Deep dive into past projects involving conflict management, mentorship, and delivering large-scale features.
- Behavioral sections covered how I proposed initiatives that were initially rejected but eventually adopted.
Round 5: Bar Raiser
- Focused on innovation, design leadership, and proactive debugging.
- Wanted detailed, structured examples of technical ownership and measurable impact.
Offer
- Base: 85LPA
- First Year Sign-on: ~50LPA
- Second Year Sign-on: ~40LPA
- RSUs: ~600 units (Back Loaded, Y1-5%, Y2-15%, Y3-40%, Y4-40%)
Final Thoughts:
- Amazon interview loop is as much about system design and DSA as it is about how you demonstrate ownership and decision-making (LPs) through your past work.
- Be ready for follow-up questions, they really dig into "why" and "how" behind each decision.
- Most of the interviews went well beyond 60 minutes especially the HM round.
- Rejected the offer
Interview Questions (12)
Maximum Total Bitrate for Video Streaming
Problem: Find the maximum total bitrate required by a video streaming service over time.
Handling Large Input Files for Bitrate Calculation
Discussed strategies to handle large input files efficiently.
Dive Deep - Technical Data Project
Focused on a project where I had to dive deep into technical data, propose solutions, and influence decisions. Got a lot of follow-ups on alternate approaches and what I could have done differently.
Design a Monitoring and Alert Generation System
Topic: Design a monitoring and alert generation system based on metric streams. Focus Areas: System extensibility, clean abstractions, and alert thresholds.
Insist on Highest Standards - Quality Benchmarks
Insist on Highest Standards — discussion around setting quality benchmarks in large-scale React migrations.
Hotel Booking System Design
Topic: Hotel Booking System — end-to-end design for search and booking flows. Expectations: Scalability, DB design, eventual consistency, and system evolution.
Dealing with Ambiguity & Long-term Thinking
Dealing with ambiguity, long-term thinking.
Task Scheduler
Bus Routes
Deliver Results - Impact and Reliability
Deliver Results — strong emphasis on impact and reliability.
Past Projects - Conflict, Mentorship, Features
Deep dive into past projects involving conflict management, mentorship, and delivering large-scale features. Behavioral sections covered how I proposed initiatives that were initially rejected but eventually adopted.
Innovation, Design Leadership, Proactive Debugging
Focused on innovation, design leadership, and proactive debugging. Wanted detailed, structured examples of technical ownership and measurable impact.