I applied through a staffing agency. I interviewed at Capital One in Mar 2020
Interview
4 rounds with total including initial phone call about the opportunity. Second and third rounds with the team, and the final round with the hiring manager and the lead. Except the first round, the other rounds were about an hour. Pretty much about the technologies experience in the job description and on my resume. Plus some coding.
Interview questions [1]
Question 1
I was given small piece of code, and asked to explain what it does, and what would be the results of given input examples.
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