I applied through other source. The process took 3 weeks. I interviewed at Capital One (New York, NY) in Mar 2019
Interview
I was contacted by one of their managers. The process took about 3 weeks. It was fast compared to other companies. But two of the four interviewers are the worst I have ever seen. One QA manager spent half of the time typing a survey and kept asking one question I explained for 3 times. Another engineer almost "laid down" on the chair with one arm dangling behind the chair showing condescending attitude the whole time. Those are extremely unprofessional behaviors that I can not believe happen to employees of such a big company. At no point, I beg them for a job and it was them who contacted me. The level of disrespect is unbelievable. I am positive I answered most the questions correctly so I will never apply for Capital One again.
Was not too difficult. three total interviews all on the same day back to back. technical one, behavioral one and a case which was more of just a debugging question
Expecting a challenging experience, I found the interview at Capital One to be intense, particularly during the system design section. The question on designing a rate limiter with a token bucket algorithm took me by surprise; mid-way through the problem, I realized it was very similar to a drill I’d practiced on prachub.com just days earlier. The technical rounds included several DSA questions, and the interviewers were thorough but supportive. Ultimately, I received an offer and happily accepted, feeling well-prepared despite the pressure.
Interview questions [1]
Question 1
Design a rate limiter using a token bucket algorithm and discuss how it would handle bursty traffic and distributed deployments.
Recruiter screening to begin with. Then, technical discussion about java, spring boot, design pattern, small coding tasks and followed by design assessment for distributed systems. Finally, managerial round for the team fit