Perform all-around maintenance and repair services in several crafts, such as electrical, carpentry, welding, plumbing, sheet metal, millwright, and painting, at a moderately complex level. Apply skills in a primary craft gained from practical experience. Possess an in-depth understanding of maintenance history of the building, equipment, and other facilities to be maintained. Use expertise for diagnosis and emergency repairs, provide preventive and cost-efficient repairs, use all shop machinery and hand tools, act as leader for less-skilled assistants, consult with engineers and vendors.