Senior SDE Interview Questions at Google
5 real Senior SDE interview questions asked at Google. Covers System Design, Technical, HR rounds. Sourced from engineers who cleared the loop.
Interview Signals — What Google Asks Senior SDEs
All Senior SDE Questions Asked at Google
Design a URL shortening service (like bit.ly) that handles 1 billion shortened URLs and 100K redirects per second.
Design an autocomplete/typeahead system for a search engine handling 100K queries per second. Discuss the trie-based approach, how you would rank suggestions, and how you would keep the trie updated with trending queries without hurting read latency.
Tell me about a time your code caused a production incident. What was your immediate response, and what did you change afterward so it wouldn't happen again?
Design a URL shortener that must handle 100M new URLs per day and 10x that in reads. Walk through your ID generation strategy and why a simple auto-increment counter breaks at this scale.
Explain the difference between reconciliation and the commit phase in React. Why can render be interrupted in Concurrent Mode but commit cannot?
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