I applied online. The process took 2+ months. I interviewed at HackerRank in Dec 2014
Interview
Total 4 interviews and 2 tests were taken. At first a coding interview on hackerrank then on codepair with co-founder Hari. Then two interviews with two engineer about development questions, and at last with another co-founder Vivek which was mainly chit-chat. After all of this they gave a task to do.
Interview questions [1]
Question 1
basic algo, dynamic programming. Database question, web security and some system design.
great process overall, uses their own platform to dogfood, besides that they are remote forward company and are engineer focused. i believe the interview was thoughtfully planned out. There are areas of improvement everywhere but this place did it well
I applied through a recruiter. I interviewed at HackerRank (Irvine, CA) in Sept 2025
Interview
Somewhat fine, but had a problem with last minute rescheduling. Interview was rescheduled twice right before the original time and I was not consulted about the new time. Then, halfway through the full-loop, my interviews were cancelled without any word or reason.
The HR person said they wanted to move forward with other candidates, but not until the day after, wasting my time. All in all, personnel was good but the recruiter was very sloppy.
Interview questions [1]
Question 1
How would you design a real-time chat application?
I applied online. The process took 2 weeks. I interviewed at HackerRank (London, England) in Mar 2025
Interview
It was a interview on the Hacker Rank tool with some leetcode questions. Task wasn't too difficult to do. Interview was quite pleasant but I was slightly out of practice with Leet Code styled questions.
Interview questions [1]
Question 1
Example of a problem/issue or tasks you faced and how you dealt with it?
