I applied through a recruiter. The process took 3 weeks. I interviewed at Fiserv
Interview
Pre-screened by in-house recruiter followed by submitting a coding exercise followed by technical phone interviews followed by on-site interviews with several technology leaders. (They flew me to CT for the face-to-face interviews.) Hiring process was very smooth once the offer was extended. Waited for background check to complete and then started work within a week.
Interview questions [1]
Question 1
How would you deal with people that are unwilling to change bad processes. (This was a common pain point for every person that interviewed me.)
I applied through a recruiter. I interviewed at Fiserv (Toronto, ON) in Feb 2026
Interview
During interview i have 3 times asked DSA on every level DSA round was going to level up with difficult Problems. But i failed in third time DSA technical round due to level of DSA asked. I am not sure why to many rounds prefer. They have not asked the real question about my work and experience in third round i prepared for system design, scenario based with my mindset.
But I personally feel company will be quite good to work. Don't consider its bad review.
Interview questions [1]
Question 1
DSA DSA DSA (3 times)
Anagram related (In first screening round)
1. Convertible
2. String Partition Championship
3. First Word
I applied through other source. The process took 2 weeks. I interviewed at Fiserv in Sept 2025
Interview
Had two virtual interviews: HR followed by a technical.
The HR interview was the standard process of getting your career background, why you're interested in the role, etc. Essentially finding out if you're a culture fit.
The technical interview was virtual with you being interviewed by 4 engineers. The questions covered high level concepts of technology and processes you have used on projects listed on your resume.
The problem was that one of the interviewers dominated the interview, consistently interrupting both me while responding, and their fellow interviewers to ask their own questions (looking at the faces for some of the interviewers, they were surprised at this occurring).
This felt very unprofessional on that person and ruined an otherwise fine interview session.
After that, I was ghosted by the talent acquisition manager for the company for weeks. This was after they had insisted they needed to move quickly to hire someone and how responsive they had been before the technical interview.
At least give the courtesy of an email rejection to candidates.
Interview questions [2]
Question 1
What was a problem that occurred in production and how did you fix it?
Two rounds. One technical screening round followed by a technical interview.
Whole process was about two weeks long. First round was to check your fit to the role and talked about past experiences mentioned on your Resume.