Meta Software Engineer Interview Questions
Meta Software Engineer interview questions focus heavily on algorithmic problem solving, clean coding, and systems thinking, with senior roles adding larger-scale system design and product-sense prompts. What’s distinctive about interviewing at Meta is the emphasis on writing correct, readable code under time pressure while narrating trade-offs, plus a structured hiring committee and team-matching stage that evaluates consistency of feedback across interviewers. Candidates should expect a recruiter screen, one or two timed coding screens in a shared editor, and an onsite loop with coding, behavioral, and — for higher levels — system or product design. Meta has also piloted AI-enabled coding environments for some interviews, reflecting real-world tooling trends. Effective interview preparation combines sustained practice on medium-to-hard algorithm problems, timed mock interviews in the same editor format, and a clear system-design framework for scoping and scaling solutions. Equally important is preparing concise STAR stories that show impact, ownership, and collaboration. During interviews, communicate assumptions, ask clarifying questions, handle edge cases, and iteratively optimize code while explaining complexity and trade-offs.

"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."
Solve Two Backtracking Array Problems
You will solve two independent coding problems. For each problem, first discuss edge cases, then implement a correct solution, and finally explain how...
Design an Online Game Leaderboard
Design the backend system for an online game's leaderboard. The system should support: - Recording player scores from game sessions. - Showing a globa...
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 an Automated Ticket Investigation Agent
Design an AI-enabled agentic system that automatically investigates support or engineering tickets. The system should: - Read an incoming ticket and u...
Solve Four Online Assessment Problems
Complete the following four independent coding tasks. For each task, write a function that returns the requested result. 1. Find the best value index ...
Solve Subarray Sum and Local Minimum
Two coding problems were reported in the same phone-screen round: 1. Count target-sum subarrays. Given an integer array nums and an integer k, return ...
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 “...
Construct a BST and read spiral order
The coding round reportedly included two algorithmic tasks: 1. Rebuild a binary search tree from a preorder sequence - You are given an array of di...
Handle Cross-Team Alignment and Mistakes
The behavioral round focused on three prompts: 1. How do you align requirements across teams? 2. What is the biggest mistake you have made at work? 3....
Solve array, tree, and maze problems
The onsite interview included the following algorithmic tasks: 1. Building visibility from the right: Given an integer array heights, where heights[i]...
Design a fitness tracking app
Design a fitness tracking application. Users can record workouts, browse their workout history, and view the route map for activities such as running ...
Implement an in-memory key-field-value DB with TTL
In-Memory DB with TTL + Scan + Backup/Restore Implement an in-memory database storing records by (key, field) -> value with optional TTL. Data model /...
Describe proudest project and cross-team work
Behavioral prompts included: 1. Describe the project you are most proud of. 2. Describe a time you worked across teams to deliver a result. For each, ...
Design a ride-sharing system like Uber
Design a ride-sharing system. Requirements: - Riders request trips with pickup/dropoff. - Drivers send frequent location updates. - Match riders to ne...
Solve three array/string/graph coding tasks
You are given three separate coding tasks. Implement each as a function. 1) Merge three sorted arrays Input: Three integer arrays A, B, C, each sorted...
Implement array parity and tree level views
Implement the following coding tasks. 1. Check whether all values occur an even number of times - Input: an integer array nums. - Output: return...
Select words to maximize unique characters
Problem You are given an array of strings words. You may choose any subset of these strings and concatenate the chosen strings in any order. Your goal...
Remove minimum invalid mixed brackets
Given a string s containing letters and bracket characters from the set (), [], {}, remove the minimum number of bracket characters so that the result...
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...
Implement an in-memory database with record locking
Implement an in-memory key–record database that supports basic CRUD on fields plus an exclusive lock per record. You are given a sequence of queries. ...