I was introduced to Capital One through a recruiter. Overall, it was a wonderful process. It was very professional, though at times they definitely kept me waiting. From the first conversation to the offer letter was approximately 5 months.

I went through a total of 6 interviews, in addition to various discussions.

My final, 6th interview was the "power day," where I went on-site at McLean for 2 behavioral and 2 job fit/technical rounds.

The interviews became increasingly more specific. The first 3 focused on general information, career pursuits, passion, etc.

After my 3rd interview, I was given the option to complete an untimed take-home assignment. Upon completion, I was scheduled a 4th interview with 2 engineers, talking about technologies and preferences. The 5th was with my team lead, and the 6th on-site.

My on-site visit was very pleasant: a beautiful office and friendly staff. There were 4 interviews, each approximately 40 minutes. The 2 behavioral interviews were fun and typical STAR format questions. The 2 job fit/technical rounds were whiteboard challenges with difficulties similar to the easier problems in CTCI.

I was told a few hours after the on-site that I got the job. From there, I negotiated the compensation package, underwent a background check, and then onboarding.

It was a very rewarding experience. The compensation package is competitive, but DO YOUR RESEARCH so you can negotiate properly. I recommend Ramit Sethi's YouTube videos.

Given a "command" object, which contains one of three possible function types (add, delete, undo), an integer length, and a string character. Implement a function to parse commands and take appropriate actions on a string.

Given a string, implement a function to determine if it has matching/balanced brackets.

Given a set of endpoints, implement a REST API on a Node server (take-home test).