I can't help regarding the LinkedIn. But your linked posting has a couple of sarcasms in it as well, and as much many of us also have a saracastic wit, in writi

I can't help regarding the LinkedIn. But your linked posting has a couple of sarcasms in it as well, and as much many of us also have a saracastic wit, in writing it's a bad look and in a potentially permanent employment-relevant medium it can be really bad. You might want to edit it.