I applied online. The process took 2 weeks. I interviewed at Capital One
Interview
Contacted by recruiter and got link to take the hackerrank test - 4 questions, 2 hours. Moved to the powerday and had two technical interview rounds, one case study and behavioral.
Technical interview rounds were mostly conversational with few questions on the languages related to the position I applied.
Behavioral round was "Tell me a time...."
Interview questions [1]
Question 1
Tell me a time...
Questions based on Java concepts
Interviewed for an engineer position, the interview was a joke. Asked basic OOP question with a few follow ups - no system design portion. Interviewer was very laid back and chill, didn't take it to seriously.
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.