There were three rounds of interviews. Questions were based on coding, how better you understand/debug the code, OS, networks, system design
1. Coding round
2. Code, OS based questions, Output of C program
3. Networking, OS, system design, Code debugging
Perguntas de entrevista [13]
Pergunta 1
Round 1, Coding:
The question was based on IP fragmentation, where data length was divided into multiples of MTU(maximum transmission unit).
Defragment all the received fragments into one packet.
OS based questions: Threads, Multitasking [My code (in step 1) behaviour in multiprocessor environment], Paging, virtual memory, context switching, dispatcher etc.
System design: Design a system which converts long URL into short URL.
Need to handle insert/search, algorithm to have unique short URL for all long URL
Candidatei-me por meio de recrutador(a). Fui entrevistado pela Arista Networks em jun. de 2026
Entrevista
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
Candidatei-me por meio de recrutador(a). Fui entrevistado pela Arista Networks (Łódź, Lódz) em jun. de 2026
Entrevista
Reached round 3 out of 4 planned, one was coding task, two live coding sessions. Linux development background was highly expected. Performance optimized approach was tested, specially oriented for hardware with lots of resources. I had a problem to properly understand reqruiting person during round 3, voice was not clear for me.
Perguntas de entrevista [1]
Pergunta 1
List implementation, bits counting, tre traversal.
Fiz uma entrevista na empresa Arista Networks (Vancouver, BC).
Entrevista
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!