A technician practices his expertise and skills in a specialized field. Technicians work in many sectors, from medical laboratories and pharmacies to computers and telecommunications to engineering and architecture, in a variety of settings.
An auto repair technician may have his own business diagnosing and repairing automotive problems. Telecommunications technicians operate and maintain complex communication systems, while computer technicians install, test and maintain computer and IT systems and networks. Dental technicians make dentures, crowns, bridges and braces, while prosthetic technicians make artificial limbs. Architectural technicians specialize in the application of technology to building design and construction. A veterinary technician assists in medical treatment of animals. Aircraft technicians maintain aircraft engines and related mechanical systems. Electrical technicians install, test and maintain electrical components. Large churches, theaters, concert halls and arenas employ lighting and sound technicians.