Overall a smooth experience. Recruiter contacted me and then sent an OA, which I wouldn't rate as easy. Try to get at least 3 out of 4 questions right and you will pass. Next came the "Power day" which is basically the virtual onsite consisting of 4 rounds.
There was system design, case, coding and behavioral. Coding is a cakewalk if you have been practicing for other bigger companies. System design was a good experience, my interviewer touched almost every aspect of the design in depth. You can choose to go in whichever direction your forte is like DB, High level, low level, network etc. Question was similar to what you find in other posts.
Case interview was very open ended and some people might find it weird because you cant really prep for it. They also give you a code snippet to debug and some basic quant analysis type of question.
Behavioral was based on standard format of STAR based on past experiences.
Interview questions [1]
Question 1
LC tagged questions and system design was among the ones mentioned in the other posts.
My interviews were all virtual and overall I really enjoyed the process and the interviewers were very nice.
1st round:
CodeSignal Assessment (70 mins):
2 Easy LC
2 Med/Hard LC
2nd Round:
"Power Day" 4 - 1 hour interviews
1 LC interview (easy/med)
1 Architecture
1 "Case Interview"
1 Behavioral
They give you plenty of info prior to this power day to help you study.
I applied through a recruiter. The process took 4 months. I interviewed at Capital One in Oct 2021
Interview
Great interview process. Recruiter was very responsive, engineers were very good at communication.
Composed of an online assessment which has 4 questions and is timed. These are a mix of easy/medium leetcode questions. They say screen is monitored and webcam but you can google documentation on a language, just can't google answers.
Next round is Power Day with 4 rounds.
1. Algorithms
2. Systems Design
3. Behavioral
4. Case Study
Interview questions [1]
Question 1
1. 3Sum variant - find pair that sums closest to 0
2. Systems Design - Design smart meter system for residential complex
3. Behavioral - standard STAR interview questions that focus on your past work experience.
4. Case Study - Mix of technical/business material. Honestly this is a piece of cake if you can debug code and provide improvements to a basic level.
I was most scared of the case study because I didn't know what to expect. But basically some things that are wrong with the code are incorrect looping conditions, using poor data type (e.g. when running a loop 10 times they use a long data type vs an int - you can suggest an int to save on memory), and analyzing how methods would run depending on varying input being based in.