The document outlines the duties of a Support Engineer role at Stortech Internal IT. The duties include: 1) installing, upgrading, supporting and troubleshooting various operating systems and applications across Windows and Mac platforms; 2) diagnosing and resolving networking and application issues; 3) providing desktop support including hardware/software installations and troubleshooting; and 4) operational duties like user account administration, backup and inventory management. Additional responsibilities involve customer service, learning new skills, and managing the IT infrastructure for an outsourced client.