Thanks for your interest in Biomedical Engineering. I love my job! There are a variety of biomedical engineering jobs out there, so my job won't be the same as every biomedical job out there.
My main role is to design implants and instruments in a 3D CAD software program (so on a computer). The implants and instruments are used in spine surgery by surgeons, so you have to think about what the surgeon wants, to make it easy to do the surgery, and also what the patient wants, because the patient will have your designs inside of them for the rest of their lives.
I also attend surgeries to make sure that I've gotten the design correct and everything is working properly. Sometimes I will also have to read papers written by doctors and surgeons to be able to research a problem to come up with the best solution.
It is pretty neat to know that something that you thought up is now inside of someone forever and helping them lead a normal life.
Hope that helps! Let me know if you have any more questions :)