This is the journey level of the series. Assembles, erects, maintains and makes minor repairs to highway signs, sign supports, pavement markings and traffic control devices in field or shop.  Work is typically reviewed on a spot check basis after decisions have been made. Unusual problems that may occur are brought to a higher level supervisor with probable outcomes and solutions. May supervise and train lower level technicians.

Assists in assembling, installing and replacing signs, sign components, and sign posts, using a variety of equipment and tools such as hand diggers, portable power augers, pavement breakers, ladder trucks and hydraulic boom trucks with attached auger; this may include installation of overhead signs; washes signs using ladder truck; performs routine maintenance work as required; makes field layout and installs stop bars, pedestrian crossings and turn arrows with paint or thermo-plastic materials; paints curbing with curb striping truck; replaces and makes limited new installations of traffic lane buttons, rumble bars and other plastic-epoxy traffic control devices; installs and replaces shoulder delineators using truck-mounted pulling and driving tools; operates all Class A equipment in snow and ice removal; 

Under the direction of a Maintenance Specialist 4, in high production operation, prepares plywood, aluminum, extruded "I" beams for signing; designs, lays out and fabricates highway signs; applies reflective or non-reflective sheeting using vacuum or roller application; performs silk-screening; hand letters or applies decals for numerals, legends and safety striping on vehicles, equipment or facilities; recycles sign stock; maintains Fabrication Shop records for sign inventory, supplies and materials; 

May supervise lower level staff.

Some positions require possess a Commercial Driver’s License (CDL) Class A, with endorsement N, without air brakes restriction.

Persons legally authorized to work in the U.S. under federal law, including Deferred Action for Childhood Arrivals recipients, are eligible for employment unless prohibited by other state or federal law.

High school graduation or possession of a GED certificate and two years of highway maintenance or metal sign fabrication experience.