The Senior IT Support Engineer is responsible for providing L1-L3 user support across the enterprise. This role ensures efficient and timely resolution of user computing issues to provide the best possible customer experience. The responsibilities include deploying and supporting end-user PCs, providing training on supported applications, troubleshooting Active Directory services, supporting printers, collaboration tools, and network issues, assisting with server support, and managing systems management tools. The engineer will also assist with IT procurement and project support.