A nonresident alien cannot use TurboTax. A nonresident alien has to file Form 1040-NR, which TurboTax does not support.
TurboTax has an arrangement with Sprintax to prepare Form 1040-NR for students and scholars. It might not be suitable for a "worker." Here's a question and answer from the Sprintax FAQs that lists the types of visas that it supports.
I’m not a student, can I use Sprintax?
Yes. If you’re a temporary visitor to the US on a H1B, H2B, L or B1 working visa, J1 Exchange visitor or foreign performing artist, athlete or entertainer on a P or O visa, Sprintax can prepare your US income tax return. However, you must be classified as non-resident for the entire tax year. If you’re unsure, Sprintax can review your circumstances and let you know.
