Meta Software Engineer System Design Interview Questions
Practice 81 real System Design interview questions for Software Engineer roles at Meta.
"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 Top-K, Crawler, and Chess Systems
This question evaluates system-design competency across scalable distributed services, covering real-time streaming Top-K aggregation, large-scale dis...
Design an Online Game Leaderboard
Question Design the backend system for an online game's leaderboard. The system should support: 1. Recording and updating player scores from game sess...
Design an Instagram-Style Social Feed
A Meta software-engineer onsite system-design question: design an Instagram-style social feed (photo/video sharing with a personalized home feed). It ...
Design an On-Demand Delivery Platform
Design an on-demand local delivery marketplace for restaurants or grocery stores. The platform should support customers browsing merchants, building s...
Design a YouTube/Netflix video platform
Design a video platform similar to YouTube/Netflix. Requirements: - Upload videos (for YouTube-like) and/or ingest catalog (for Netflix-like). - Trans...
Design an online chess platform
Design an online chess platform. Requirements: - User matchmaking (ranked/unranked). - Real-time gameplay with low latency moves. - Enforce game rules...
Design a nearby places (proximity) service
Design a proximity search service like Yelp/Google Maps. Requirements: - Store places with (place_id, name, lat/lng, category, rating). - Query: “find...
Design a location-based radius top-K search
Design a location-based search service. Input: - latitude, longitude - radius (meters) - K Output: - The top K locations within the radius. The term “...
Design an online auction system
Design an online auction system (eBay-style). Requirements: - Users create auctions with start/end time and starting price. - Users place bids; system...
Design Real-Time Auctions for Social Posts
Design a real-time auction feature for a large social photo and video app. A creator can attach an auction to a post. Viewers can place bids, and ever...
Design Queue And Taxi Matching Services
Answer both independent system design prompts. For each one, clarify requirements, propose APIs, describe core data models, explain the architecture, ...
Design an online auction system
Design a scalable online auction service. Users can: - Create an auction (item info, start/end time, reserve price optional). - Place bids while the a...
Design an Online Judge and Live Comments
The onsite included two system design prompts: 1. Design an online judge platform where users submit code for programming problems. The system must su...
Design a Top-K trending items service
This question evaluates competency in large-scale system design, real-time streaming ingestion, distributed aggregation, and trade-offs between exact ...
Design an online coding contest platform
This question evaluates a candidate's ability to design scalable, reliable, and secure distributed systems for real-time, event-driven workloads, cove...
Design a live video comments system
This question evaluates skills in designing scalable, low-latency real-time systems, covering fan-out delivery, ordering and consistency semantics, du...
Design a price tracking system
Question Design a price tracking system for e-commerce sites (similar to price-history tools such as CamelCamelCamel or Keepa). The system ingests pro...
Design a distributed job scheduler
Question Design a distributed job scheduler that can run background jobs at specific times or on recurring schedules (similar to cron but scalable and...
Design a real-time messenger
Question Design a real-time messaging system (a Messenger/WhatsApp-style product) that supports 1:1 and group chats. Walk through requirements, the AP...
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 (objects) to their metadata. The s...