Second, once I sign in through linkedin, I have no idea what to do next. You've successfully gotten me to understand that my profile is 25% complete, but the helpful introduction and flow towards initial registration is now nowhere to be found. I need some text here to show me what to do. "Pick a career path" or something similar would even be helpful.
I then have to click on the jobs in the field I choose, but nothing tells me I need to do that either. A CTA there would be really helpful.
So, I chose my job and entered my skills. Then, when I wanted to go back, I figured out how to do that, but afterwards I was back to 25% complete; so now I have a different idea of what the 25% stands for.
This is a really awesome idea, and could be really successful, but you've got to give the user some guidance since the UX isn't standard.