I recently applied for a senior role, and a recruiter reached out asking me to complete a coding exercise. I had 5 hours from the moment I started it.

It was a simple exercise that asked me to create basic HTTP services for uploading and downloading files. A few unit tests needed to pass.

I completed the exercise by taking into account proper solution structuring, registering DIs, creating repositories, services, and models, etc. I think it was a pretty good solution for the problem described.

I even wrote a detailed paragraph explaining how the code could be improved in a real-world use case.

The recruiter sent a rejection email a week later and did not provide any feedback.

At this point, I think GitHub's interview process is crap and would not recommend people to go through the same thing I did.

Implement a data storage API in .NET with 3 REST-based APIs and a few unit tests.