A Merchant Mariner Entry Level job involves working on commercial vessels such as cargo ships, tankers, or tugboats, assisting with deck operations, maintenance, and safety procedures. Responsibilities typically include cleaning, securing cargo, standing watch, and helping with navigation and engine room tasks. Entry-level positions, like Ordinary Seaman or Wiper, require a Merchant Mariner Credential (MMC) and basic safety training. This role is a starting point for a maritime career with opportunities for advancement through experience and licensing.