El prepara y prueba la iluminación para el espectáculo. tramoyista actor bailarín director

The right word that fills the blank is:

- El tramoyista prepara y prueba la iluminación para el espectáculo.

Explanation:

The translation of the sentence is:

- The stage designer prepares and tests the lighting for the show.

In Spanish, the whole set of instruments and tools that are used within an artistic or theatrical performance to provide special effects, the scenery, the curtain, illumination, that is to say, the entire physical part of the stage, is known as the “tramoya,” hence the person who is in charge of all this is called "tramoyista" or "maquinista" in some Spanish-speaking countries.