The DCEO Principal Engineer is a leader and evangelist, working with and leading cross-functional teams which include: technical program management, mechanical engineering, electrical engineering, control engineering, supply chain management, operations, end users as well as safety and security teams. They will maintain, operate, and troubleshoot mission-critical data center facility equipment including electrical support equipment such as stand-by diesel generators and related fuel systems, 3 phase electrical systems that include but not limited to switchgear, transfer controllers, UPS units, PDUs, battery technologies and associated systems.