A recruiter arranged the telephonic technical screening interview. It went well. Invited for first onsite which includes 4 engineer's. Every one was professional, and one of the interviewer from the hiring team mentioned i had all the experience for this particular role . Got excited. Thrilled to hear i got selected for second level onsite interview. Second onsite finally happened after 3 weeks. Completely down south and non-welcoming attitude in the second round onsite which is interviewed by other groups including VP, Director. Finally failed with one interviewer who seem to be a director, he started asking question's about ether type values, how do you deep dive into a packet and see decimal values. i told him its not in top of my head, then he was rude and started asking what is chrome, mac os version number that am using. Even the hiring manager was asking questions more related to the role. Seems like they already pre-decided not to select,based on their attitude and the questions they asked.