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Prep/Companies/Amazon

Big tech · Seattle, Washington

Amazon.

The Amazon.com retail marketplace, Prime Video, Alexa and AWS cloud services.

its questions lean on

service design
notifications
object-oriented design
scalability
availability

The rounds, as candidates describe them

Online assessmentCandidates who pass the online assessment go to the interview loop.source ↗
Interview loopFour 55-minute interviews mixing coding, at least one systems design question, and Leadership Principles questions.source ↗

Reported by candidates

From public interview write-ups; each links its source.

Design a Notification SystemSystem design
IP-06 · Design a Notification System →W06 · DAY 01 · Designing a Real-Time Notification Platform →W06 · DAY 02 · The Delivery Pipeline: Guarantees, Priorities and Preferences →reported in:LeetCode Discuss · Amazon SDE-2 interview experience, bar raiser HLD (2025) ↗LeetCode Discuss · Amazon SDE2 Hyderabad, offer (2022) ↗
Design a URL ShortenerSystem design
IP-01 · Design a URL Shortener →W01 · BOSS · Design a URL Shortener at Scale →reported in:LeetCode Discuss · Amazon SDE2 interview experience (2024) ↗
Design PastebinSystem design
IP-12 · Design Pastebin →SQ-08 · AWS S3 →reported in:LeetCode Discuss · Amazon SDE2 interview experience (2024) ↗
Design a File Sync ServiceSystem design
IP-10 · Design a File Sync Service (Dropbox / Google Drive) →SQ-08 · AWS S3 →reported in:LeetCode Discuss · Amazon L5 (SDE2) Seattle, "Design Dropbox" (2022) ↗
Design a Ride-Hailing ServiceSystem design
SQ-09 · Uber →IP-13 · Design a Proximity Service →reported in:LeetCode Discuss · Amazon SDE-2 L5 interview experience (2021) ↗
Design a Chat SystemSystem design
IP-08 · Design a Chat System →SQ-02 · WhatsApp Messaging →reported in:LeetCode Discuss · Amazon SDE 2, WhatsApp with sent/delivered/read (2021) ↗
Design a Distributed Job SchedulerSystem design
IP-17 · Design a Distributed Job Scheduler →W02 · DAY 05 · Distributed Cron & Job Scheduling →reported in:LeetCode Discuss · Amazon SDE 2 Bangalore (2022) ↗
Design an IoT Sensor Data PlatformSystem design
W08 · DAY 01 · Event Ingestion at Scale →IP-15 · Design a Metrics Monitoring and Alerting System →W03 · DAY 03 · Backpressure and Flow Control →reported in:LeetCode Discuss · Amazon SDE2 AWS Seattle, sensors for farmland (2024) ↗LeetCode Discuss · Amazon SDE2 Seattle, air-quality sensors across cities (2021) ↗
Design a Parking LotLow-level design
LLD-01 · Design a Parking Lot →reported in:LeetCode Discuss · Amazon SDE-2, hiring manager LLD round (2025) ↗LeetCode Discuss · Amazon SDE2 Bangalore, concurrent parking garage (2022) ↗
Design SplitwiseLow-level design
LLD-06 · Design a Bill-Splitting App (Splitwise) →reported in:LeetCode Discuss · Amazon SDE 2 interview experience (2024) ↗
Design a Vending MachineLow-level design
LLD-07 · Design a Vending Machine →reported in:LeetCode Discuss · Amazon SDE-2 Hyderabad, offer (2020) ↗
Design a Customer Loyalty Points ProgramLow-level design
W02 · DAY 02 · Idempotency in Practice →IP-20 · Design a Payment System →reported in:LeetCode Discuss · Amazon SDE 2 India, Amazon Fresh loyalty program (2025) ↗
Design a Collaborative Document Editor (LLD)Low-level design
SQ-20 · Google Docs Collaboration →W05 · DAY 04 · Conflict Resolution →reported in:LeetCode Discuss · Amazon SDE 2 Bangalore, offer (2024) ↗

Likely, from what they build

Our pick, not a report: questions that fit Amazon's products.

Design an E-commerce Flash SaleSystem design
W02 · BOSS · The Ultimate System Design Interview →W01 · DAY 04 · Hot Keys and Skew →W04 · DAY 03 · Thundering Herd →

Study path

An ordered path through the course for Amazon, and why each step is there.

01W04 · BOSSDesign a Global E-Commerce Product Catalog Systemthe product catalog interview
02W04 · DAY 05Multi-Tier Cachingcaches at every layer and invalidating them
03SQ-08AWS S3object storage at planet scale
04W03 · BOSSEvent-Driven Food Delivery Order Systemevent-driven order processing
05W05 · DAY 05Leader Election and Coordinationleader election and fencing
06W10 · DAY 01SLIs, SLOs and SLAsSLIs, SLOs and error budgets
07W10 · DAY 04Capacity Planningcapacity planning for peak sales
08W10 · DAY 05Incident Managementincident management and postmortems
09LLD-02Design an LRU Cachea classic coding/LLD warm-up

Company names and logos are trademarks of their owners, shown only to identify each company. This course isn't affiliated with or endorsed by any of them.

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