Google Software Engineering Intern interview questions
based on 132 ratings - Updated Apr 3, 2026
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Software Engineering Intern applicants have rated the interview process at Google with 4 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 72% positive. This is according to Glassdoor user ratings.
Candidates applying for Software Engineering Intern roles take an average of 30 days to get hired, when considering 1 user submitted interviews for this role. To compare, the hiring process at Google overall takes an average of 43 days.
Common stages of the interview process at Google as a Software Engineering Intern according to 1 Glassdoor interviews include:
One on one interview: 50%
Skills test: 50%
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OA with three questions to solve. Each problem was a leetcode medium or hard question. I was given I think about two hours for the three questions. The site automatically locked after the given time.
The overall process was challenging but well-structured, taking a few weeks from start to finish. It began with an initial recruiter screening to discuss timeline and background. This was followed by rigorous technical interviews focusing heavily on Data Structures, Algorithms, and problem-solving (expect LeetCode Medium/Hard level questions).
After passing the technical rounds, I moved into the Team Matching phase. This involved a behavioral and technical discussion with the actual Hiring Manager to see if my past projects (C++, hardware, system architecture) aligned with the team's needs. Once the manager gave the green light, the file went to the global compensation committee. The final step before the official written offer was an automated ID verification process (via Veriff) to confirm my legal name for the contract. The recruiting team was great, but be prepared for the final administrative steps to take a bit of patience!
Interview questions [1]
Question 1
Walk me through the architecture of the most complex system you have built. What were the biggest performance bottlenecks and how did you solve them?
I applied online. I interviewed at Google (Palo Alto, CA) in Oct 2025
Interview
The interview process consisted of a single technical round conducted online. The interviewer focused on problem solving and basic data structures. There were no dynamic programming or greedy algorithm questions, and the discussion was generally conversational and straightforward.
Interview questions [1]
Question 1
Can you explain how a hash map works and discuss its average time complexity for insert and lookup operations?