I was contacted by a university recruiter.

I had three phone interviews and one coaching session.

Finally, I had an on-site interview.

During my on-site interview, I was asked four questions on these areas:

• Hashing
• Caches
• Compilers
• Graphs
• Distributed algorithms

What was one of your professional achievements?

In an array of integers, return the smallest positive integer that is not in the array.

Reverse a string.

Reverse only characters in odd positions in a string.