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62 jobs found.
Nightsoil Treatment Machine Operator
An operator who operates, inspects, and maintains treatment machines in nightsoil treatment facilities, responsible for safe and hygienic processing.
Night Soil Processing Equipment Operator
This occupation involves operating and maintaining night soil processing equipment to safely and hygienically treat night soil.
Gravel Dredger Chief Engineer
This occupation involves serving as the chief engineer of specialized vessels that extract gravel such as river sand and sea sand, handling the operation, maintenance, and management of engines and pump equipment.
Heavy Oil Combustion Device Assembler
A manufacturing technician who assembles and adjusts burners and control devices for combusting heavy oil based on mechanical drawings.
Lubricating Oil Filling Worker (Petroleum Refining Industry)
This occupation involves filling containers with lubricating oil produced in petroleum refining and performing measurement and packaging tasks. It requires operation of production line equipment, safety management, and maintenance of quality.
Circulation Pump Operator
Operates and monitors circulation pumps and related equipment, performs inspections and maintenance to stably supply chilled/hot water or boiler circulation water in factories, buildings, and plants.
Septic Tank Equipment Technician
A technical job responsible for septic tank installation planning, construction, and maintenance management, ensuring proper wastewater treatment and environmental conservation.
Septic Tank Maintenance and Inspection Worker
A job that performs maintenance, inspection, and cleaning of septic tanks to maintain and improve wastewater treatment performance.
Sand Washer (Nightsoil and Sewage Treatment Facilities)
Worker responsible for removing sand and solids from nightsoil or sewage, in charge of the preliminary stage of the purification process.
Petroleum Extraction Machine Operator
Specialized profession that operates drilling equipment and pumps at oilfield extraction facilities to extract crude oil and maintain equipment.