Contact: title and department fields?

I'm successfully creating contacts via the API but am having trouble figuring out what field to use to set a contact's title and department. Neither is documented as a valid field, and while I didn't get an error when I added them as Strings, they didn't appear in Daylite either. I've tried "title", "job_title", "department", and "department_name"

Are these fields supported via the Contact API?

Thanks!