I applied through a recruiter. The process took 4 weeks. I interviewed at Capital One in Dec 2021
Interview
Recruiter reached out to me. We had one intro interview in which I was given the actual application to fill out (Full-Stack Developer). After completing that, I received a take-home technical assessment (CodeSignal / 70min / 4Qs) to do within 2 weeks.
After passing, we scheduled our "Power Day" of interviews. Got a run-down with the recruiter which was nice, but would take it with a grain of salt because some of what was said misled me in my preparation.
Power Day consisted of 2 "Job Fit" Technical interviews, 1 Behavioral, 1 Case. There was a "calibrating interviewer" for the two technical interviews - one was screen-off with no participation, and the other was pretty engaged. The other two just had one interviewer.
1st Job Fit Technical: Systems design
2nd Job Fit Technical: 1 Easy/Med LeetCode problem
Behavioral: 3 Questions, pretty standard
Case: Surprisingly straight-forward, but also not what I expected.
Interviews were fair/easy with proper preparation, but had a negative experience with some of the interviewers who gave some sarcastic remarks.
Interview questions [4]
Question 1
Systems design for a smart electric meter system for an apartment building with one dashboard for tenants to show hourly/weekly/monthly/yearly readings to their specific units, and another dashboard for the owner with similar readings but only by floors or building electricity usage.
Started with big components, and was allowed to delve into specifics in any other area per interviewee comfort and expertise
What do you know about Cloud / why Cloud is beneficial / pros & cons of moving to Cloud.
Given table data, recommend specs for the user.
Interpret code (related to data previously given), then debug
4 rounds of interview including coding , design , case study, behavioral after clearing the code signal assesment. Coding was medium hard of 2 questions each. case study and system design was difficult.
This took a bit longer than expected, stretching over several weeks. The technical rounds were intense, featuring an LRU cache implementation and a problem on detecting duplicate transactions within a 60-second window. I was nervous at first, but it clicked for me when I realized I had practiced a similar approach on PracHub just days before. Unfortunately, I didn’t receive an offer in the end, but the experience was a solid learning opportunity. The behavioral questions felt straightforward, so I wish I had made a stronger impression in the technical segments.
Interview questions [2]
Question 1
Implement an LRU cache with get and put operating in O(1)
Un proceso largo, pero sin mucha complicación en el proceso. Empresa atenta en todo momento a dudas y disponibilidad de tiempo para las entrevistas. Exámenes con temas sencillos y complejos. Variedad en los ejercicios