What is the occupation of a lighting engineer?

What is the occupation of a lighting engineer? The explanation is as follows:

A lighting engineer uses various professional lamps to create various "light and shadow effects" according to the needs of different artistic styles.

In film and television, there are bright parts besides dark parts, and there are also bright parts and dark parts in a picture. Clever composition with light and shade is a very important means of expression in image art creation. The work of lighting engineer goes hand in hand with the work of photographer, especially indoors: the lighting task of news, special topics, audio-visual education, literary evenings, sports competitions and other programs is even more arduous.