Education: No degree, certificate or diploma. Tasks: Load, unload and transport construction materials. Clean and lubricate cranes. Operate pile driving cranes to drive pilings into earth to provide support for buildings and other structures. Assist in drilling and blasting rock on construction sites. Clean and pile salvaged materials. Remove rubble and other debris at construction sites. Set up and adjust glass and glass product finishing machines. Repair glass doors and other glass structures. Operate process control machinery to cut glass or assemble glass window units. Measure, mark and cut glass. Assemble and install prefabricated glass, mirrors or glass products. Work conditions and physical capabilities: Physically demanding. Attention to detail. Hand-eye co-ordination. Personal suitability: Flexibility. Reliability. Hardworking. Experience: Experience an asset.