I was invited to an interview process by the recruiter, which included:

• A phone screen to discuss the position and do some introductions.
• An AI-Assisted Programming exercise.
• Four back-to-back interview rounds on the same day.

Since I don't usually go through so many interview rounds, I felt a bit tired and nervous that day. Still, my overall performance was okay.

In the end, I didn't get the senior role. I was considered for a slightly lower level because one or two of the interviews didn't quite reach the senior standard. This makes sense, as most of my previous experience has been in startups and small companies, so there are some areas I'm still less familiar with.

Implement a cache mechanism based on the existing code.