When you're done coding your app, if I'm right, you upload your build to iTunes Connect using either Xcode or Application Loader.
What I'm asking is, How exactly would I go about submitting my build to iTunes Connect using Xcode (6.3.2)?
(saw a close vote that thought I was unclear of what I was asking, hopefully the italicized text makes it a bit more clear)
Here is a "short" guide for what to do:
In iTunes Connect:
bto build your project
Back in iTunesConnect: