A Major Incident Management (MIM) developer is responsible for managing, coordinating, and resolving major IT incidents that significantly disrupt business operations. They identify and classify incidents based on severity, initiate immediate actions, and manage the communication between technical teams to expedite resolution. They also ensure minimal downtime and mitigate impacts by implementing recovery procedures. Post-incident, they analyze root causes, document lessons learned, and develop strategies to prevent recurrence. Additionally, they are involved in improving the incident management process, developing automation tools, and integrating systems to optimize response times and efficiency in handling major incidents.