Okta Software Engineer interview experience

The steps included a screening, then a manager interview, then a code challenge that took me about seven hours to complete. The challenge itself involved designing and implementing an API around permissions on a filesystem description, plus loop checking to determine whether a directory contained itself.

After that, the interview moved into an architecture design discussion. I was asked to design an IP banlist system that could maintain banned IPs across all company systems, with only about 45 minutes allocated. To clarify my architecture design, they then wanted a follow-up round where I