Quantity surveyors prepare cost estimates and plans, audit projects, manage costs and administer contracts, for all levels and types of construction.

Railway infrastructure workers work on the construction, maintenance and operation of railway infrastructure, including tracks, signalling equipment and buildings.

Riggers assemble and install rigging gear such as cables, ropes, pulleys and winches to lift, lower, move or position machinery, structural steel and other heavy objects.

Sampler testers assist engineers, technical officers and other laboratory staff by collecting and preparing samples, carrying out experiments, making measurements with scientific equipment, recording results and presenting results for critical analysis. Sampler/Testers carry out basic sampling and testing, record and present results and clean, maintain and set up equipment for use in experiments. They play an important role in manufacturing quality control.

Set designers research, design and supervise the construction of sets and scenery, costumes and all the visual aids required in stage, film and television productions.

Shotfirers assemble, position and detonate explosives to break or dislodge rock and soil or to demolish structures.

Stonemasons cut and shape hard and soft stone blocks and masonry slabs for the construction and renovation of stone structures and monumental masonry (stonework for cemeteries).

Surveying technicians collect and analyse information and develop plans for surveyors and related professionals. They provide the basic information required for land development and redevelopment, including such activities as road-building, construction projects and subdivision of land.

Swimming pool and spa builders install and construct in-ground and above-ground swimming pools and spas in both residential and commercial locations.

Swimming pool and spa technicians chemically treat pools and spas. They may also install, maintain and service pumps, filters, heaters and other related equipment.