AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers' mission. TAC2O (Technical Architecture for Command & Control Operations) is Task Order under the ten-year Helios IDIQ. AT&T's TAC2O contract provides a team of IT specialists to operate the DIA headquarters TAC2O system which serves as the collection point for multiple Special Access Programs (SAPs) developed under Helios. These systems deliver their digital information payloads from across the globe and outer-space to the TAC2O platform for processing, integration, correlation and access by Defense Department analysts and decision-makers. The TAC2O system is operated by AT&T specialists and selected AT&T Helios Teammates cleared to support the multitude highly sensitive programs. AT&T has an opening for a senior information security professional to perform the role of a Configuration Manager - Change Manager for the TAC2O systems in providing managed IT support of SAP-IT systems for high-priority defense intelligence collection needs and develop and field advanced technical collection capabilities.