skywalker

Short definition from Wiktionary

Noun

1. 1
   One who walks in the sky: A member of the Mohawk group of Native Americans; especially one who is or was involved in steelworking on tall buildings in New York City.
2. 2
   One who walks in the sky: Any ironworker working at a height.
3. 3
   One who walks in the sky: One who walks along a skywalk or skyway.