Quality Control × Classification Details: Construction, Civil Engineering, and Electrical Work Occupations
56 jobs found.
Crusher Operator
A job that operates crushing equipment at quarry sites to crush and sort mined rocks, producing aggregates for roads and construction.
Heavy Media Separation Worker
Worker who separates and concentrates valuable minerals in ore using liquids with different specific gravities.
Wave-Dissipating Block Manufacturing Worker
This occupation manufactures wave-dissipating blocks (such as tetrapods) for coasts and harbors. Responsibilities include concrete mixing, pouring, curing, finishing, and inspection.
Stoper Worker (Civil Engineering Construction)
Specialized worker who pressure-injects cement-based injection materials into excavation surfaces such as tunnels and dams to reinforce rock and provide waterproofing.
Sand Extraction Worker
A field worker who uses heavy machinery to extract sand from rivers, coasts, quarries, etc., and supplies it as construction materials.
Steelmaking Furnace Builder
Steelmaking furnace builders lay and repair refractory bricks and mortar inside steel mill furnaces, maintaining the heat insulation and durability of steel melting furnaces as specialized technicians.
Ore Washer
A worker who washes and sorts ore mined from mines using water or chemicals to recover valuable mineral resources.
Stone Selection Worker
Worker who sorts stone materials mined from quarries or mines by size and quality using visual inspection or machines.
Railway Track Facility Construction Worker (Railway)
A job that installs, compacts, adjusts, and inspects/maintains railway tracks, supporting safe and stable railway operations.
Carpenter (Apprentice)
A job where one learns the basic techniques of wooden construction under an experienced carpenter and acquires skills through support tasks.