The interview process begins with a recruiter call, followed by a CodeSignal assessment, and then a "power day" akin to what's done at tech companies. Overall, it's a really over-the-top process.

I passed the CodeSignal assessment, which had four questions. One was easy, two were easy/medium, and three and four were impossible.

The "power day" truly is a mystery going into it. You're not given sufficient documentation to prepare adequately. There's a strong possibility they'll ask you a question that requires a library in your language that you haven't used in a while, and if you don't know it, you're done.

It's really not a good process. I highly recommend not interviewing with Capital One. It's a shame because they are a great bank.

CodeSignal questions range from basic coding to advanced algorithms. Power Day questions and concepts may differ for each candidate, but the format generally remains the same: two technical, one case, and one behavioral question.