As a manager who hires developers I'd say no. Mainly because any single thing isn't going to be enough to get you a job, or possibly even an interview.
My suggestions:
1. Put up as much of your course work as possible on GitHub. This gives an employer the chance to look at your code, and shows you can use Git.
2. Take on a project to build something. Possibly your course work covers this, I don't know. I'd suggest some simple app/website/gizmo which actually does something. It doesn't have to be unique but should show you can build a larger project without creating a confusing mess.
3. Rinse and repeat. The above would be enough to land you a junior developer job assuming you're actually good enough at the coding. You can always learn more and more, ie security, scalability, design etc. I'd look into any of those if they interest you. Otherwise wait until you need them.
I run a developer jobsite btw, the link is in my profile.