Hello @blaine1,
You'll have to set up your employee profile completely so you can see your employee's Employment tab. I'm here to share a few insights and help you from there.
To start with, you're unable to see your employee's Employment tab when you're not yet done setting up your payroll.
Meanwhile, if you've already done setting up and entered all your payroll information, you'll then see your employee's Employment tab.
Thus said, here's a couple of screenshots for your visual reference.
Lastly, you can also read this article which can be your guide for any future tasks: How to Review and Edit Employee Name, Address, and Social Insurance Number?
If there's anything else that I can help you with, please leave it in the comment section down below. I'll be always around ready to help.