Theatrical technician
（重定向自Tekkie）
A theatrical technician, (variably known as a tech, techie, technician, theatre tech or theatre technician) is a person who operates technical equipment and systems in the performing arts and entertainment industry. In contrast to performers, this broad category contains all "unseen" theatrical personnel who practice stagecraft and are responsible for the logistic and production-related aspects of a performance including designers, operators, and supervisors. Many professional designers and technicians consider the diminutive, "techie," to be offensive.