Google Software Engineer Interview Questions

4800+ verified questions, indexed by team and level. Real questions submitted by candidates who completed Google loops in the last 24 months.

About the Google Software Engineer hiring loop

Google rounds are scored on four axes: GCA (general cognitive ability), RRK (role-related knowledge), leadership, and Googleyness. Questions are filtered to the specified role and indexed by team (Search, Cloud, YouTube, Ads, Pixel, DeepMind, Verily, Waymo).

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 Google 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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