A stonemason job involves building, restoring, and repairing structures using stone, which includes cutting, shaping, and setting stones for walls, monuments, statues, and decorative features. Duties also cover interpreting plans, mixing mortar, using hand and power tools, ensuring structural alignment, and maintaining a safe work environment. The role is physically demanding, requires working with heavy materials, often in outdoors, dusty, and noisy environments, and demands a keen eye for detail and craftsmanship.