I was invited for the first round (one hour) for a Software Security Engineer position in Switzerland. The interview consisted of a presentation of the team and its work, followed by 30 minutes of questions. To my surprise, these questions were about system design, which is not common for graduate students. The interview concluded with a 15-minute coding question.

The interviewer was rather cold and not very friendly; I did not see even one smile, making the experience pretty uncomfortable.

The coding question was LeetCode Easy.

I have not received any offer, and the hiring team has ghosted my emails asking for feedback.

I felt a lack of humanity from the beginning to the end.

What would be the security challenges when sending a snap to the backend?

What information could be processed synchronously?

What information could be processed asynchronously?

What could the API look like?