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"builder" is also used as a crossword clue. If that's what you saw, the answer is often constructor (11 letters).
Definitions
someone who contracts for and supervises construction (as of a building)
Word origin
From Middle English byldere, buyldere, from bylden + -er. By surface analysis, build + -er. Compare Old English bylda, bytla (“hammerer, builder”).
Used in a sentence
“To cut coding time and to insure maintainability of the algorithms, an "algorithm builder tool" was constructed.”
“A map builder uses map layers from several sources and adds data to make a custom map.”
“Many users may find this easier to use as each field is clearly displayed and the user interface provides a formula builder and a Check formula function.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Construction worker”7 letters
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