I don't work for a US employer but have to file taxes as I hold a permanent residence card.
Yes, you can still use TurboTax if you are living outside the US.
You would just need to select foreign as your state of residence in the personal info section.
And "foreign" is way down at the bottom of the dropdown list of states, right after Wyoming.
Also see this FAQ which has some bank requirements and payment info you might need to consider when filing from a foreign country:
FAQ: Can I e-file with a foreign address?
https://ttlc.intuit.com/turbotax-support/en-us/help-article/electronic-filing/e-file-foreign-address/L5YAEBfsN_US_en_US