What does “you're built to scale”mean?

Solution 1:

What Does 'Scale the Business' Mean? Merriam-Webster Dictionary

This newer use of scale means “to grow or expand [or build a business] in a proportional and usually profitable way.” The term was sufficiently new and specialized that it was explained in the text of an article about microfinancing:

Buying an expensive piece of equipment that would be used rarely would not be profitable. Renting it for an occasional use makes more business sense and is a more profit producing use of a growing business's capital. The business is thus built to scale in the sense of being scalable.