I applied online. The process took 4 weeks. I interviewed at Capital One in Oct 2021
Interview
Applied directly on their site, and received a phone interview invite within a week or so.
Phone interview was around 30 mins and covered overview of the company and asked some basic questions like 'Why do you want to work here'?
Received an email with a link to the Code Signal. Took it a few days later and passed by solving 3/4 of the questions.
Heard back within a day or two with results and schedule the onsite final interview.
Onsite final interview had 4 rounds consisting of behavioral, case study, DS/Algo, and systems design. Heard back the next day with results.
Interview questions [1]
Question 1
Behavioral: prep a few stories and answer using the STAR method
DS/Algo: leetcode easy/mediums
System Design: Grokking System Design or comparable materials
Case Study: Can't really prep for this round
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