The hiring process at Capital One takes an average of 90 days when considering 1 user submitted interviews across all job titles. Candidates applying for Senior AI Engineer had the quickest hiring process (on average 90 days), whereas Senior AI Engineer roles had the slowest hiring process (on average 90 days).
I applied online. I interviewed at Capital One (Plano, TX) in Oct 2025
Interview
4 stages of interviews technical, behavioral, system design, and case study. Challenging if you don't prepare ahead of time. Looking at past interview questions helped me a lot. I recommend preparing ahead of time.
Interview questions [1]
Question 1
Banking system design with broad technical questioning
Lots of interviews. If they are seriously thinking of hiring you they will do a 6 person interview in one day with a lot of partner teams. Prepare in advance.
I applied through college or university. I interviewed at Capital One (Washington, DC) in Dec 2022
Interview
First, there was a discussion with the recruiter, which is pretty standard.
Then, it was what they call power day which consists for four interviews. These include debugging, behavioral, ML fundamentals, Leetcode + ML design. I would not say any one of them is difficult, but just the length makes them challenging.
Interview questions [1]
Question 1
In the ML fundamentals, I was asked to explain LoRA.