Fidelity Investments Co-op Machine Learning �
Boston, MA·192 interview reviews·Easy difficulty
Co-op Machine Learning � Interview Reviews
192Straightforward — 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.
“Product of Array Except Self - Return an array where each element is the product of all other elements”
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.
“Design Rate Limiter - Implement an API rate limiting system”
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.
“Tell me about a time you disagreed with a decision and how you handled it”
Straightforward — 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.
“Merge Intervals - Merge all overlapping intervals”
Online assessment was difficult, but the final round technical was just 2 leetcode questions. Studying tagged questions and general leetcode helps a lot. Interviewer was friendly and wanted me to succeed.
“LeetCode question, difficulty was around a medium”
About This Role
Frequently Asked Questions
How hard is it to get hired as a Co-op Machine Learning � at Fidelity Investments?
The interview difficulty is rated 2.4/5 by candidates. 65% report a positive experience. Focus on Machine Learning, Python, Statistics to improve your chances.
How long does the Fidelity Investments Co-op Machine Learning � 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. 50% of candidates applied online.
What questions are asked in a Fidelity Investments Co-op Machine Learning � 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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