I applied through college or university. The process took 3 weeks. I interviewed at Arista Networks (San Diego, CA) in Oct 2015
Interview
It is the 45min phone interview. And I needed to log in ssh given to code based on C. The .c source files have been provided and what I needed to do was to design a function within them. There were supposed to be two coding problems. However I spent almost 30 min on the first one though it was easy, and there was not enough time to finish the other. So the interviewer asked me what two functions in the second source file could do instead of letting me code. In conclusion, I finish the first problem with bug free and talked about the second source file.
Interview questions [1]
Question 1
To compare two strings like IP address: "123.324.30", "32.234.324.324".
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