Bank of Montreal Machine Learning Engineer – Co-op/Intern
Toronto, ON, Canada·45 interview reviews·Hard difficulty
Machine Learning Engineer – Co-op/Intern Interview Reviews
45Straightforward — just 2 medium leetcode-tagged problems in 45 minutes. Very fast paced though so be aware of time. A few follow-up questions for the interviewer at the end. No behavioral questions.
“Valid Parentheses - Determine if the input string has valid bracket pairs”
Just one round with 2 LC hards in 45 min. It wasn't too bad at all — if you've done a lot of LC you're gonna be fine. Make sure to check off your approach with the interviewer before you begin implementing.
“Longest Substring Without Repeating Characters - Find the length of the longest substring without repeating characters”
Had a recruiter screen first, then a technical round focused on system design and coding. The interviewer was very professional and walked through the problem step by step. Good overall experience.
“Tell me about a time you disagreed with a decision and how you handled it”
Just one round with 2 LC hards in 45 min. It wasn't too bad at all — if you've done a lot of LC you're gonna be fine. Make sure to check off your approach with the interviewer before you begin implementing.
“Design TinyURL - Design a URL shortening service like bit.ly”
About This Role
Frequently Asked Questions
How hard is it to get hired as a Machine Learning Engineer – Co-op/Intern at Bank of Montreal?
The interview difficulty is rated 3.5/5 by candidates. 62% report a positive experience. Focus on Machine Learning, Python, Statistics to improve your chances.
How long does the Bank of Montreal Machine Learning Engineer – Co-op/Intern hiring process take?
The process typically takes 2–6 weeks from application to final decision, depending on the hiring cycle and team availability.
What is the interview process like?
Most candidates go through a recruiter screen, followed by technical coding rounds, and a final interview loop. 55% of candidates applied online.
What questions are asked in a Bank of Montreal Machine Learning Engineer – Co-op/Intern interview?
Common topics include data structures & algorithms (arrays, trees, graphs), system design, and behavioral questions using the STAR method. Practice with our AI mock interviewer to prepare.
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