Education: No degree, certificate or diploma. Tasks: Clean and lubricate cranes. Mix, pour and spread materials such as concrete and asphalt. Clean and pile salvaged materials. Perform routine maintenance work. Clean up chemical spills and other contaminants. Remove rubble and other debris at construction sites. Work conditions and physical capabilities: Physically demanding. Attention to detail. Personal suitability: Flexibility. Reliability. Team player. Experience: Will train.