Amazon Software Engineer System Design Interview Questions
Practice 55 real System Design interview questions for Software Engineer roles at Amazon.
"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"
"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"
"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."
"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."
"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."
"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."
"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."
"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."
"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."
"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."
"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."
Design an Amazon Locker Service
Design a Single-Station Package Locker Design the classes and core workflows for one self-service package-locker station. A delivery driver deposits a...
Architect an AI Chatbot for Enterprise Users
Architect an AI chatbot for enterprise users over internal knowledge and tools. <details> <summary>Hint 1</summary> Start by stating assumptions, then...
Object-Oriented Design: Snake Game
This question evaluates a candidate's ability to translate a familiar game into a clean object-oriented model, covering class decomposition, encapsula...
Design a Library Management System (API and Schema)
This question tests practical system design skills by requiring candidates to model a relational data schema and REST API for a library lending system...
High Availability and Failover for a Primary-Replica Database
This question evaluates a candidate's understanding of database high-availability design, including replication semantics, failure detection, and fail...
Design a Log Collection System
This question evaluates a candidate's ability to design a scalable, fault-tolerant log collection and search pipeline, covering distributed ingestion ...
Design a Core Dump Collection and Analysis System
Prepare for a Amazon system design interview about design a core dump collection and analysis system. This question focuses on requirements, architect...
Design streaming error-log counting with moving average
Design a core component in a streaming system: Input: - Multiple upstream services continuously emit log events. - Each event includes at least: servi...
Design a Perishable-Goods Inventory and Location Tracking System
This system design question evaluates the ability to architect a location-tracking and inventory service for perishable goods across a distributed ret...
Design Human Avoidance for Warehouse Robots
This question evaluates sensor fusion, perception-to-motion data flow, short-horizon motion planning, and real-time safety-critical decision-making fo...
Design a Distributed Cron Job Scheduler
Design a Distributed Cron Job Scheduler Design a distributed scheduler for recurring jobs, similar in scope to a workflow-oriented cron service. Users...
Design Music Search, Playlists, and Playback Controls
Design Music Search, Playlists, and Playback Controls Design the core application model and service interfaces for a music product. Users can search b...
Design a Scalable and Polite Web Crawler
Design a Scalable and Polite Web Crawler Design a web crawler that begins from a set of seed URLs, discovers links, fetches eligible pages, and stores...
Design a High-Availability Load Balancer
This question evaluates knowledge of distributed systems and load balancing principles, covering high-availability architecture for HTTP/HTTPS traffic...
Design delayed job scheduler (LLD)
Design a Delayed Job Scheduler (Low-Level Design) Design a service that schedules a job to execute X seconds in the future with second-level accuracy....
Design a file search module like UNIX find
Design Task: Object-Oriented module that mimics UNIX find Context Design an object-oriented library that replicates the core functionality of the UNIX...
Design an intersection traffic-light system
System Design: Traffic-Light Control for a Multi-Road Intersection Context Design the software and systems for controlling a signalized, multi-approac...
Design a Ride-Hailing Matching System
Design a ride-hailing matching system similar to a taxi or rideshare application (e.g. Uber, Lyft, DiDi). The interview focuses on the driver-location...
Design a distributed job scheduler service
Design a distributed job scheduler service Design a horizontally scalable, multi-tenant job scheduler service that supports both one-off / ad-hoc jobs...
Design a replicated key-value store with quorums
Design a distributed system that replicates key–value pairs across multiple replicas. The interviewer wants to focus on replication, quorums, and fail...