I once applied to a position like this. It was eerily similar to my background, and when I did a little digging I found that the group lead had even directly cited my research papers in his own research work.
I applied on the site, reached out on LinkedIn to the group lead and the recruiter, and even was able to find emails for those two, which I also messaged as well.
They didn't even bother to send me an automated rejection notice. There was nothing at all, no responses to any messages, no email, nothing. I have to assume that position was posted with someone already in mind that they wanted to hire.
I applied on the site, reached out on LinkedIn to the group lead and the recruiter, and even was able to find emails for those two, which I also messaged as well.
They didn't even bother to send me an automated rejection notice. There was nothing at all, no responses to any messages, no email, nothing. I have to assume that position was posted with someone already in mind that they wanted to hire.