There are two ways to see worker ratings.
To see your matched workers ratings, go to the Dashboard tab, and on the job title, you’ll see the count of workers that matched to your job. Once you click on the number, you’ll see the expanded list. You can see the overall average star rating the worker has, but if you click on their profile, you’ll see individual ratings from past jobs they’ve worked.
To see your booked workers ratings, head to the Workforce tab, then click Booked. You’ll see their overall average rating, but if you click the profile icon, you’ll see every rating they’ve received from past jobs.