I was contacted by the company recruiter after I applied online. Asked some experience related and behavioral questions and was selected for the second round. The second round was a purely technical phone interview with 2 team members. One from Network team and one from Security team. After the technical interview, was selected for the on-site interview. I was traveling from DC and Interviewer was nice enough to book the train ride for me. The on-site interview went on for about 4 hours with just a break of 10 mins in between. In total, 4 interviews. 1st with 2 members from Network and Security teams, 2nd with 2 members of Networking team. First two interviews were purely technical. 3rd was with 2 managers of Network and Security teams. Completely behavioral questions. and last one with the Head of the departments. The worst thing about this entire process was the follow-up. I was told the feedback from the interview process was extremely positive but the company could not extend an offer at the moment due to my Immigration status. Once I get my status extended, I was asked to contact back. I expedited the process and got it done in two days and tried to email/call the recruiter to inform about it but no reply. It's been more than a week I have been trying to get in touch with the recruiter but everything is simply being ignored. No call-back, No reply to the emails. Extremely unprofessional way of handling a follow-up. If the results are negative, the recruiter could simply call/email and inform rather than ignoring the emails or calls until the candidate gives up and takes it as a NO. Will never apply or wish to work with this company again.