The Data Center Technician III role at Google involves deploying and operating new data center infrastructure, troubleshooting complex equipment/infrastructure issues, maintaining data security and integrity, disassembling end-of-life equipment, and performing preventative maintenance. Responsibilities include collaborating across teams, reporting issues following established procedures, and ensuring data security standards are met. The role requires experience diagnosing and troubleshooting operating systems, computer hardware, server hardware, and networking protocols, along with the ability to perform component-level repairs. Physical stamina and the ability to work non-standard hours are essential.