The chimney sweep of today will not only verify that the chimney is free of obstruction and combustibles, he may also be consulted for structural changes and to conduct in-depth inspections of portions of the chimney not usually visible without special equipment.
This is a full-time permanent position. With health insurance, vacation and other benefits after your probation period.
My feeling is that if you are good on a roof and feel like you might be destined for something way cooler then being a chimney sweep is the career for you!