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 binary tree, grid, and heap tasks
Answer the following independent coding tasks: 1) Range sum in a BST: Given the root of a binary search tree and integers low and high, return the sum...
Copy linked list with random pointers efficiently
Given the head of a singly linked list where each node has next and random pointers, create a deep copy of the list. First provide an O(n) time, O(n) ...
Compute unmatched parentheses length
Problem You are given a string s consisting only of characters '(' and ')'. Repeatedly remove any matched pair of parentheses as part of a valid paren...
Design coding platform with global leaderboard
Scenario Design a LeetCode-like online coding practice platform that also has a global leaderboard (e.g., Top K users by score) and can show a user’s ...
Design keyword search for social posts
Design a Facebook-like post search feature: - Input: one or more keywords. - Output: all (or top-K) posts that contain the keyword(s). - Assume posts ...
Compute tree right view and target-sum subarrays
You are given two separate programming tasks. --- Task 1: Right-side view of a binary tree You are given the root of a binary tree. Imagine standing o...
Find mode or minimum with time-space tradeoffs
For an unsorted array of integers, implement two functions: ( 1) return the minimum value; ( 2) return the value that appears most frequently (the mod...
Remove minimum parentheses to balance string
Given a string s containing lowercase letters and the characters '(' and ')', remove the minimum number of parentheses so that the resulting string is...
Merge two interval lists into a union
You are given two lists of closed intervals [start, end]. Each list is individually sorted by start and contains non-overlapping intervals. Merge the ...
Compute top-N active customers
Maintain and return the top N customers by cumulative activity amount, where activity is defined as the sum of deposit amounts, pay amounts, and trans...
Design a secure ML data platform
System Design: Secure, Ethical, Multi‑Tenant ML Data and Inference Platform Context Design a cloud-based ML platform used by multiple internal product...
Validate near-palindrome and course prerequisite feasibility
Coding round (40 minutes): two problems You do not need to run code, but you should: - Explain your approach clearly. - Walk through the logic on exam...
Implement basic expression evaluator
Implement a function to evaluate a string expression containing non-negative integers, '+', '-', '*', '/', and spaces. Multiplication and division hav...
Solve windowed duplicates and target expression
1) Windowed duplicate check: Given an integer array nums and an integer k, determine whether there exist indices i and j such that nums[i] == nums[j] ...
Maintain top N payers
Implement topNPayers(n) that returns the n accounts with the highest cumulative outgoing payment amounts as strings formatted "{accountId}:{totalOutgo...
Design user top-10 songs service
Design a Service to Compute Each User's Top 10 Songs Context You are designing a backend service for a large-scale music streaming platform to compute...
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...
Validate complete binary tree
You are given the root of a binary tree. A complete binary tree is defined as a binary tree in which: 1. Every level, except possibly the last, is com...
Maximize vacation streak with PTO
Question Given an array of characters containing 'w' (workday) and 'h' (holiday) and an integer n representing the number of PTO days you can convert ...
Implement, Debug, and Optimize a React Table
React Table Component — Design, Implementation, and Performance Context: You are building a reusable React Table component for a frontend technical sc...