The Senior IT Project Manager is responsible for managing complex IT projects on a day-to-day basis, using the Project Management Life Cycle process and deliverables. This involves managing all project phases to ensure timely and within-budget completion, coordinating with IT project team members and stakeholders, tracking performance, and creating project documentation. The role also requires securing resources, defining project scopes, collaborating to understand business needs, translating them into detailed requirements, providing status updates, and managing vendors.