I applied through college or university. I interviewed at Arista Networks in Feb 2017
Interview
Phone Interview. The interviewer was very nice and patient. Like everyone else, I was asked to login their server via ssh and finish some coding problems. In addition to the problems themselves, I was also asked some questions about the C language and computer systems.
Interview questions [1]
Question 1
The problems are almost the same as what others have posted here, but to answer them well, you'll have to be very familiar with C (yes, C not C++), command-line debugging, man page, and working with editors like Vim or Emacs.
I applied through a recruiter. I interviewed at Arista Networks in Jun 2026
Interview
Pros:
Great initial approach – the recruiter thoroughly checked my GitHub profile and projects before the interview, which is very uncommon and shows they do their homework.
Cons:
A major mismatch between the job description ("Software Engineer C++") and the actual interview reality. The technical stage on CoderPad strictly tests bare-metal C98 skills: raw pointers, manual bitwise operations, and packing bytes into 64-bit integers. If you are accustomed to modern C++ (RAII, templates, safe memory management), this will feel like a massive step backward. Additionally, the time expectations for live low-level bit-shifting were unrealistic, to the point where the interviewer started solving the task themselves.
Interview was kind and not stressful, just minor mismatch of naming
Pretty good, not too complicated, was comfortable. Mostly LC questions, and was easy enough that you should be able to do it after doing NC150. good luck for the interview!
Starts with online test, then three rounds of technical interviews follow.
Not a lot of discussion, just go straight to the technical challenges which have to be solved in time