Operates traveling or stationary crane to lift, move, and position loads, such as structural parts of ships or vessels, related machinery, equipment, products and materials, using hoisting attachments such as hooks, clamps, slings, electro-magnet, or bucket. Repetitive sequences that require balancing, climbing, stooping, kneeling, crouching, crawling, reaching, standing, walking, pushing, lifting, finger manipulation, grasping, feeling, seeing, hearing, speaking, and an acute sense of smell.