A Fire Watch job involves continuously monitoring high-risk work areas, especially during "hot work" (welding, cutting, grinding) or where fire hazards exist, to detect, alert, and respond to fires, using available equipment and ensuring safety protocols are followed until the risk is eliminated, often requiring dedicated vigilance with no other duties. Key duties include inspecting the area, ensuring fire extinguishers are ready, maintaining constant observation, sounding alarms, contacting emergency services, and staying post-work for at least 30 minutes to ensure no re-ignition.