Got a call through LinkedIn from ServiceNow HR. After a telephonic discussion with the HR the process got started in mid June.

Online Test: Got a HackerRank link to do an assignment. Time was 90 minutes. It was a DP problem.

I did the challenge. 70-80% of tests were passing in my solution. In the same week got a confirmation to take 4 F2F rounds in their office. Every round is elimination round. There was a hiring event going on in their Office on a weekend.

F2F Rounds:

Round 1:
The interviewer was a nice guy. He first asked about the online assignment (Like what the question and how did you solved. May be he just made sure I had taken the test or at least am aware of the question). Then he asked one coding question and one design question.
1. Code to generate all combination of a string.
2. System design for whatsApp. Lot of discussion here.

Round 2:
1. Find an element in an sorted rotated array (lg N time).
2. Question related to scheduling jobs. It was a greedy problem.
3. Asked some questions from my resume then asked to implement LRU (No code).

Round 3:
This round again of coding. He asked two questions (Leetcode Medium). I did the code.

Round 4:
It was with Senior director. We just have some discussions on my resume. Then he asked design Twitter. He seems very happy. He told like they want to hire me. Even asked when can you join ?

Once those 4 rounds done I thought it's over. HR told you did really good. Feedback is all positive. There might be one more round. That's with HM. Since he is on leave you need to come on a week day.

So it was scheduled for another 2 rounds. One with HM and one with the Director of that group.

Round 5:
The hiring manager round. He asked two coding questions one on BFS and the other one from Matrix. I wrote code for both. Then there was some discussion on designing.

Round 6:
The Director of that group. From the first impression I was just not interested to take that round. He asked a DP problem. Then he went for 20/30 minutes(May have some other work). I wrote the code. He came and check, everythiing ok. Then lot of behavioral questions like why ServiceNow etc, etc... Finally one design question. This round was went nearly 90 minutes.

I knew there is something wrong. Because the HR didn't told me about this Director round before. It was just set there. Anyway I did all well, so why should I worry.

Now after 2/3 days I mailed HR regarding status. Immediately got a call from ServiceNow HR. HR said they can't match my Salary. At that moment I don't know what to tell. I just said Ok. Am not sure whether the Director rejected or they really can't match the salary.

After the call I felt really bad. Why did they waste my time ? If they can't match salary then how come they are calling for Interview ?

My suggestion would be if you are from a tier 1 company then think twice before going for ServiceNow interview. I know at some moment we are so desperate that we don't really think whether it's the right company to go for interview.

But some positives are like ServiceNow office is really good. Secondly except the Director all the interviewers including the Senior Director were really nice and polite. The HR people were very good.