I applied online. I interviewed at Block in Oct 2025
Interview
In the interview process, there are 3 rounds of technical interviews. I got through 2 of the 3 interviews, which were both simple object oriented design challenges. Interviewers can be hit or miss.
3 technical interviews, asking easy LC questions at first, then progressing to medium, around 60 minutes each. They reached headcount before I even finished the process, since it took so long.
3 rounds of technical interviews; some were closer to lc mediums and others were more class implementation focused; follow-ups were also pretty standard and asked about time/space complexity; for my internship cycle, you had to pass all 3 techs (perfect working solution by the end) to get an offer