Meta Software Engineer Interview Questions

4100+ verified questions, indexed by team and level. Real questions submitted by candidates who completed Meta loops in the last 24 months.

About the Meta Software Engineer hiring loop

Meta's loop is two product-coding rounds, a system design (E5+), and two behavioural rounds against Meta's five values. Questions are filtered to role and indexed by org (Instagram, WhatsApp, Messenger, Reality Labs, core Meta, Ads).

Coding rounds are scored on correctness, clarity, complexity statement, edge-case enumeration, and testability. System design is scored on scale anchoring, API definition quality, data-model trade-offs, and failure-mode reasoning.

Topics covered in Meta Software Engineer interviews

  • 01Data structures (arrays, hash maps, trees, graphs)
  • 02Algorithms (DP, greedy, divide & conquer)
  • 03System design (load balancers, caches, databases, queues)
  • 04Operating systems and concurrency
  • 05Database internals and query optimisation
  • 06Distributed systems trade-offs (CAP, consistency, partitioning)

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