Walmart

The process began with writing a program to test your programming skills (in any language; I did it in Scala, as I've been working with it so far), test coverage, and documentation, based on an email with instructions. I had four days to complete it

The process was very long, but accurate. Firstly, you will need to take on a challenge: implementing an IT solution architecture for a specific problem. All solution technology and approach will be at your choice. You will have about 5 days to finish

It was a good process. It included a lot of technical questions, LeetCode style. They also asked a bunch of behaviorals that were fairly simple and straight to the point. There were more questions that were also included.