I applied through an employee referral. The process took 1 day. I interviewed at Arista Networks (Remote, OR) in Feb 2014
Interview
Compared with other companies, the company seems to focus a lot on the language details of C, instead of more algorithmic questions. In general, I do not like the interview process. I guess I will not enjoy working on the details there even if I am accepted.
Interview questions [1]
Question 1
There are a few questions on the details of C.
1' The role of fflush to flush out the strings.
2' A macro that computes a size_t number. Putting in a loop, it casts -1 to a size_t number, making the loop impossible to start.
3' Sudoku solver
4' Design a generic stack class.
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