Who are they and what do they do? A high-rise work specialist specialises in various work which needs to be done at a height.
What are the activities of the job? Primarily building, painting or surfacing, tinsmithing, welding, facade cleaning etc. at heights on various structures (churches, poles, high-rise buildings, rock walls etc.), often using helicopters.
Where is it done and under what conditions? On various buildings and structures at a height. There are risks involved.
What tools/equipment do they use? Climbing equipment and tools according to the type of work performed.
What do you need to succeed? You need a specific course, the ability to respond promptly, physical fitness and manual dexterity.