A person who erects and dismantles scaffolding(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "scaffolder" in a sentence
"These researchers usually do not collect data or describe, even as a possibility, the learner as someone who sometimes acts as a constructive and efficient independent inventor and builder of his own knowledge, without the help of the "scaffolder" adult."
"Her partner, also called Ashley, used to do some work as a scaffolder, but since being given an asbo has found it hard to get work."
"(IG illustrates the latter in his book with an anecdote about a scaffolder)"