Sorry for the late answer, had missed that one.
I've not seen something as extreme as that. Also not contradictory constraints. However, such that would restrict the number of people to a very small number indeed.
It's more a wishlist for the perfect candidate. All those skills are useful in my current job, so the list was no idiot. They just know in advance that noone will fit all bullet points. And I'm still rather weak in LINUX system. I made progress in knowledge of the medical industry.
That being said, yes, the position is extremely broad - programming, test scripting, manual testing, system. Most other candidates had only 1 or 2 of them, I did have 3.
Another type of job adds is the hilarious one. In one case they had ten bullet points, emphasising that one can do excellent shopping nearby (centre of Cologne), that they have 'kicker' (aka 'foosball') matches and irrelevant stuff like that. Requirements: anyone who knows a bit of programming and has graduated from computer or natural sciences, or engineering. Not a single word about what they were doing. I wonder who they expect to get with such an add?
I was once contacted by a head hunter for a similar job in Berlin, and the main points were "there is a billiard" and "we will teach you the basics of German"(I'm good in German, no more fluent as I once was, but lessons for beginners would be a pure waste of time for me).
I've not considered applying when I did not meet the necessary constraints. It is interesting that you did so, and were accepted. How did you do that? Mention in the cover letter: "Although I do not fulfil the necessary requirement <fill in the blank> I can compensate this thorugh my experience with something very similar?"
Well, I also knew personally my future boss - which helps making a proper answer a lot, even if the final decision was not his own, but the big boss's - but even without it, when I was a consultant, I often filled less than half of the bullet points when I won the mission. Only once out of 13 missions, I was "perfect". All 12 others, I had holes.
If I were writing requirements, and i would get an offer by someone who would not fit, I would be a bit cross. After all they were wasting their and my time for a certain refusal. However, I should make sure that the requirements are indeed necessary. (I mean, it cannot be so difficult to differ between 'must haves' and 'nice to haves'?)
Usually, noone on the market has all the "must have", and you learn them on the fly. I've got regular trainings on the parts I'm weak.