The first step in the interview process was an online assessment. The coding section was around medium/hard difficulty. If you're confident with data structures and algorithms, you probably won't have too much trouble solving them.

It also included a section that asked about different time/space complexities.

The second step was supposed to be a technical interview, but there wasn't anyone available to ask the questions. Instead, it became an HR interview with basic questions about your resume, experience with projects, and some logic questions.

Nobody showed up to the third round, so I pinged the recruiter. They responded, saying they'd reschedule.

Nothing ever came of it, so I decided to not pursue the position any further.

Tell us about your resume. What was the hardest thing to do on Project A?

Algorithms and data structures, including strings, maps, and recursion.