Google Machine Learning Engineer interview questions
based on 43 ratings - Updated May 26, 2026
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Machine Learning Engineer applicants have rated the interview process at Google with 5 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 50% positive. To compare, the company-average is 71.6% positive. This is according to Glassdoor user ratings.
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I had 2 code interviews, 1 ML system design, 1 ML fundamentals and 1 behavioral. I got only 1 week to prepare so it was very hard to come ready for all these interviews, overall I think all of them where very fair.
Interview questions [1]
Question 1
In ML fundamentals they asked to design a small LLM that could run on a phone while making sure its polite. In ML system design they asked to design a system to detected copyright violations on youtube
I applied through a recruiter. The process took 4 weeks. I interviewed at Google (San Jose, CA) in May 2024
Interview
During my interview process for a Machine Learning Engineer role at Google, I went through multiple rounds:
1. Initial Recruiter Screen – The process started with a call from a recruiter. We discussed my background, what the role entails, and the overall interview structure.
2. Technical Phone Screen – Next, I had a 45-60 minute coding interview that focused on data structures, algorithms, and machine learning concepts. I used Python (C++ was also an option) to solve problems in real time.
3. Onsite Interviews (4-5 Rounds) – This was the most intensive part of the process:
• Coding Interviews (2 rounds) – These tested my knowledge of data structures, algorithms, system design, and ML-related problem-solving.
• ML System Design Interview – I was asked to design a scalable ML architecture and justify my choices.
• Applied ML Interview – This round focused on my understanding of ML fundamentals, my ability to apply research, and how I solve real-world ML challenges.
• Behavioral Interview – Here, I was evaluated on teamwork, leadership, and my general approach to problem-solving.
4. Hiring Committee Review – After the interviews, my performance was reviewed by a hiring committee, which made the final decision.
The process was rigorous, requiring strong algorithmic skills, deep ML knowledge, and expertise in system design.
Interview questions [1]
Question 1
Implement a function to sample from a multinomial distribution efficiently.
Asked challenging questions! I felt like it was a fair interview and encouraged me to think in critical ways. It required me to demonstrate my technical knowledge relevant to the job
Interview questions [1]
Question 1
Describe a past research/work technical challenge you have worked on