In total there were 2 interviews- one by HR and one by someone who is actually working in this role. Due to the Corona restrictions, both the interviews were either online or over the telephone.
The HR team was very helpful as before the 2nd interview (kind of like a technical interview), they provided many links related to that product. These contained short videos which explained the product in simple terms. I found it very useful to understand the product before the 2nd interview was conducted.
All in all, my interview experience at MuleSoft was very nice (one of the best actually) as the process was very smooth and transparent and all my questions were responded to quickly and in depth. I would really recommend it to all students wanting to start an internship!