Meta
Coding + System Design + Behavioral
Interview Format
Coding Interviews (2 rounds)
~45 min, two medium problems in ~35 min. Meta expects fast, optimal, bug-free solutions — pace matters.
System Design (E5+)
Design a large-scale system (news feed, messaging). Evaluated on scalability, data modeling, and trade-off reasoning.
Behavioral
Focus on impact, conflict resolution, and driving projects. Meta rewards people who move fast and own outcomes.
What They Actually Test
- →Speed and correctness — two problems per round leaves little room for hesitation
- →Optimal solutions — Meta expects the best time/space complexity, not just a working answer
- →System design trade-offs at scale (mid/senior)
- →Impact and ownership in behavioral rounds
Real-Style Sample Questions
Return the k most frequent elements in an array in O(n log k) or better.
Merge k sorted linked lists into one sorted list. Analyze the complexity of your approach.
Design the Facebook News Feed. How do you rank, cache, and fan-out posts at billions-of-users scale?
Tell me about the project you're most proud of and the specific impact you drove.
Scoring Philosophy
Meta converts each round into 'signals' (problem-solving, coding, communication) that a hiring committee reviews. Cleanly solving both coding problems within time is the strongest positive signal. Behavioral rounds probe measurable impact and how you handle disagreement.
Insider Tips
Practice solving two medium problems in ~35 minutes — Meta's coding rounds are pace-sensitive.
Go straight to the optimal approach when you can; brute force alone rarely clears the bar.
For system design, drive it: clarify requirements, estimate scale, then design.
Quantify your behavioral stories — Meta rewards concrete, measurable impact.
Ready to practice?
Start a coding session calibrated for Meta.