also: エヴァンジェリスト
A person who enthusiastically promotes a particular cause, product, or technology, often in a business or tech context. Also used in a religious sense for a preacher of the Christian gospel.
He travels around the world as an evangelist for the new product.
テクノロジー業界では、エバンジェリストが重要な役割を果たす。
In the tech industry, evangelists play an important role.