I applied online. The process took 4 weeks. I interviewed at Block (San Francisco, CA) in Nov 2014
Interview
1 hour coding challenge on HackerRank. 2 hour on-campus interview with 2 interviewers, 1 hour per interview. All day interview at the Square offices in San Francisco, comprised of two interviews, breakfast, lunch, and afternoon coffee.
Interview questions [1]
Question 1
Describe a difficult technical challenge that you've faced.
Inital take home, followed by extension interview, followed by a coding challenge, followed by system design interview.
The whole process took 3 months!
The interviewers are usually really nice and want you to do your best.
The interviewer was nice, and he is friendly and willing to give hint, the question has 2 follow-ups, it was hard to complete in time. The question was not a typical LeetCode
Phone screen and then a full day of interviews. 3 pair programming challenges, a system design review and a prior experience interview. There was also an onsite lunch with a person from the company.
Interview questions [1]
Question 1
To design a hotel booking system. Pick any part (backend, frontend, database, api etc) and deepdive into that, explaining the decisions along the way.
