Google SDE1 Interview Guide
Evidence-backed preparation playbook for Google SDE1 interviews. 3 reported questions, top topics, difficulty breakdown, and a free assessment.
Know your gaps before the interview
Answer 10 questions from this exact pool. Get a personalised readiness score for Google SDE1 and a focused study plan targeting only your weak areas.
Top Questions — Ranked by Community Votes
These 3 questions appeared most in Google SDE1 reports. Master these first.
Given a list of intervals, merge all overlapping intervals and return the result. Explain the sort-then-scan approach and the edge cases (touching intervals, single interval, all disjoint).
Tell me about a time you had a strong technical disagreement with a senior engineer. How did you handle it, and what was the outcome? Be specific about the technical context and your reasoning.
Google values "Googleyness". Describe a situation where you went significantly beyond your role to help a colleague or improve something that was not your responsibility.