Software Engineer System Design Interview Questions
Practice 893 real System Design interview questions for Software Engineer roles. From companies including Meta, OpenAI, Amazon, Anthropic, Google.
"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 analytics dashboard for an AI chat app
Scenario Design an analytics dashboard for a ChatGPT-like AI chat product. The dashboard is used by Product/Engineering/Support to monitor product hea...
Design a cloud database write path and recovery
System Design (Engine-level): Write Path + Crash Recovery Design a core subsystem for a cloud-native relational database (Aurora-like) where compute i...
Design a file sync and sharing service
Scenario Design a cloud file storage, sync, and sharing service similar to a consumer/team drive product. Core requirements - Upload/download files fr...
Design a tamper-evident video chain-of-custody audit system
System Design: Tamper-Evident Audit Logging for Video Evidence Chain of Custody Design a scalable, tamper-evident audit logging system for video evide...
Implement a robust REST API method
Design and implement a REST API method to create a resource with idempotency Context You are building a create endpoint for a commerce-like service. T...
Design a supermarket checkout system
Design the software for a supermarket checkout system. A grocery store has multiple checkout lanes operated by cashiers, and the design should also be...
Design a distributed cron job scheduler
System Design: Distributed Cron Job Scheduler Context You are designing a multi-tenant, internet-scale cron job scheduler that triggers tasks accordin...
Design a donation service for a 3‑day charity
System Design Prompt You are designing an online donation service for a 3-day charity campaign. Requirements - Donors can: - Select a charity campai...
Design an in-memory cloud storage system
In-Memory Cloud Storage Service (Take-home) Design and implement an in-memory cloud storage service that maps files to their metadata. The project is ...
Design a Google News-like aggregator
System Design: News Aggregation Platform (Google News–like) Context Design a multi-region news aggregation platform that ingests content from many pub...
Design a scheduled payment system
System Design: Scheduled Payment Service Context You are designing a backend service that allows end users to: - Schedule a payment for a future date/...
Design a scalable interview question bank
System Design: Scalable Interview Question Bank Platform Context Design a multi-tenant SaaS platform for organizations to create and manage an intervi...
Design a marketplace price tracking service
Design a large-scale product price tracking service similar to an e-commerce price monitor. Users can submit product links from a major online marketp...
Design comments and async image generation
The system design portion combined two prompts: 1. Design a full-stack comment system with frontend, backend, and database support for create, read, u...
Design an At-Most-Once Job Scheduler
Design a distributed job scheduler that supports both one-time and recurring jobs. Requirements: - Clients can create jobs with a schedule, payload, r...
Design a basic banking system
System Design: Basic Online Banking with Safe Money Movements Context Design a minimal but production-minded online banking service. It must support c...
Design a donations service with 3-day rolling totals
Design a service that ingests donations and serves rolling 3-day donation totals. Requirements Core features 1. Ingest donation events: - Each dona...
Describe how you use Kubernetes
System Design: Practical Kubernetes (K8s) Use and Operations Context: In a technical screen, you are asked to describe how you have used Kubernetes in...
Design homepage viewport rendering with deduplication
Design the backend + client interaction to support viewport rendering for a streaming service’s home page (rows of videos/tiles). Scenario - The home ...
Design a meeting scheduler and shopping cart
You are asked to do two system-design prompts. Prompt A: Meeting Scheduler Design a meeting scheduling system (similar to a calendar + scheduling assi...