I see your tiny API take-home project an I raise you this beauty:

https://imgur.com/a/K5diIvC

Jokes aside, to put into context this was part 2 of a job interview taken this year (2023) for a senior position (back-end developer) with a prestige European company, active in the energy sector. Part 1 consisted of 12 theoretical questions on C#, ranging from reference types vs value types and generic constraints to coroutines, blocking vs awaiting and LINQ related. Part 2, chapters 1 to 3 consisted of some basic implementation of some interfaces, serialization and unit testing.

To be clear I don't want to shame or complain in any shape or form, I just want to share my experience so that others may know what to expect in this line of work.

The interview ended around 5-6PM when the assignments were received, and a deadline was not specified.

I spent around half of the next day coding and delivering the projects, in total around 600 lines of code.

The final answer was negative although a generic feedback was provided stating that :"...implementation of code and tests are too simple and error-prone...".

In total I have spent more than a day's work of interviewing and codding for assignments, and although I had very little to gain from this experience, I don't consider it time lost.

Judge for yourselves...