10
Questions
3–6 weeks
Process Length
Very Hard
Difficulty
Meta (formerly Facebook) is known for its fast-paced engineering culture and one of the most well-structured interview processes in tech. The company values 'Move Fast' and 'Build Awesome Things.' Meta interviews focus heavily on coding efficiency and system design at scale.
Q1: Given a binary tree, return the vertical order traversal.
Q2: Find all valid combinations of k numbers that sum up to n.
Q3: Implement a basic calculator that handles +, -, *, / with parentheses.
Q4: Given an array of intervals, merge all overlapping intervals.
Q1: Design Facebook's News Feed — real-time, personalized, at billion-user scale.
Q2: Design Instagram Stories — ephemeral content at scale.
Q3: Design Facebook Messenger — real-time chat with read receipts and group chats.
Q1: Tell me about the most impactful project you've worked on.
Q2: How do you prioritize when you have multiple urgent tasks?
Q3: Describe a time you received critical feedback and how you responded.
Meta typically expects candidates to solve 2 medium-difficulty problems per 45-minute coding round. There are usually 2 coding rounds in the on-site loop, so you'll face 4 problems total. Speed and clean code are highly valued.
Meta rebranded from Facebook in 2021, and the company officially uses 'Meta' in all communications. However, you'll still hear 'Facebook' used informally. Products like Facebook, Instagram, and WhatsApp retain their individual brand names.
Meta uses levels E3 through E9+ for engineering. E3 is entry-level (new grad), E4 is mid-level (2–4 years), E5 is senior (4–8 years), E6 is staff, and E7+ is principal/distinguished. Most experienced candidates interview at E5 or E6. Compensation increases significantly at each level.