Hi, I work in the US but live in Canada. I already filed in the US. Filing my Canadian taxes now, can I use turbotax software myself for this purpose?

Yes, you can prepare and file your Canadian taxes by using TurboTax Online or a Desktop version. 

You must Print & Mail  your return to the CRA in accordance with the rules if you are a non-resident.

Thank you for choosing TurboTax.