I applied online. The process took 3 weeks. I interviewed at Capital One in Aug 2021
Interview
1. Phone Screen
2. Mandatory coding assessment using CodeSignal with four tasks, 70 mins max
3. Four 1-hour interviews on Zoom with 30 min break in middle:
a) System design
b) Algorithm (count primes)
c) Business case (talk about biz problem, look at some code and determine output, mix things up and repeat)
d) Behavioral
Interview questions [2]
Question 1
Design an IoT electric meter system for an apartment building, with dashboard for tenants showing hourly/weekly/monthly readings, and another dashboard for building owner aggregated by floor in the building
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