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. Our Defense Team supports our Nation's warfighters, providing, operating and assuring critical voice, video and collaboration services for the full spectrum of military operations. AT&T has an opening for Tier III operations and maintenance (O&M) engineers to support the customer's various WAN and LAN networks, in providing network upgrades and config support to the architecture team; act as subject matter expert in WAN and LAN technologies and vendors; support customer's intra- and inter- net and other data communications systems or segments of networked system; and by Providing tiered support for the network operations centers (NOC). Description of Job Duties/Responsibilities: * Network support and client server specialists and plan, coordinate, and implement network security measures. * Participate in evaluation of new network technologies and makes recommendations to network architecture team regarding the integration of these technologies into the existing network. Ensures that plans for hardware and communications are adequate. Develops and implements methodologies for analysis, testing, and support of LAN and WAN networks. * Diagnose hardware and software problems and replace defective components. * Support operations and maintain activities and administer networks including hardware, systems software, applications software, and all configurations. Required Clearance: TS/SCI with polygraph. (#ts/sci) (#polygraph) Required Qualifications: Candidate must have 7 years of experience that can be a combination of work history and education. This equates to a Bachelor's and 3 years of experience OR Associates and 5 years OR HS and 7 years. Must comply with DoD 8570 IAT Level 2. Desired Qualifications: * Participate in evaluation of new network technologies and makes recommendations to network architecture team regarding the integration of these technologies into the existing network. Ensures that plans for hardware and communications are adequate. Develops and implements methodologies for analysis, testing, and support of LAN and WAN networks. * Diagnose hardware and software problems and replace defective components. * Support operations and maintain activities and administer networks including hardware, systems software, applications software, and all configurations. * Utilize complex network analysis tools to identify and correct problems in the network while maintaining logs and records associated with reported problems or situations. * Prepare troubleshooting procedures for restoring the network to optimal performance levels. * Provide fault management for the network and supports performance management functions. * Respond, isolate, and resolve network troubles. Monitor alarms and alerts to identify network elements causing network degradation or failure. * Execute reporting functions and data input associated with network management. * Monitor security posture of the network, report suspected violations to designated authority. * Coordinate with configuration management and implementation teams. * Perform operator-level maintenance on components for network management systems * Analyze network characteristics (eg, traffic, connect time, transmission speeds, packet sizes, and throughput); recommend procurement, removals, and modifications to network components. * Optimize network topologies and site configurations. Plan installations, transitions, and cutovers of network components and capabilities. * Coordinate requirements with users and suppliers. * Organize and direct network installations on site surveys. * Assess and document current site network configuration and user requirements. * Maintain operating systems, communications software, data base packages, compilers, assemblers, and utility programs. * Apply software, hardware, and standards information technology skills in the analysis, specification, development, integration, and acquisition of open systems for Information Management (IM) applications. * Ensure these systems and applications are compliant with standards for open systems architectures, reference models, and profiles of standards - such as the IEEE Open Systems Environment (OSE) reference model - as they apply to the implementation and specification of IM solutions on the application platform, across the application program interface (API), and the external environment/software application. * Evaluate and recommend COTS applications and methodologies that can be acquired to provide interoperable, portable, and scalable information technology solutions. Ready to join our team? Apply today!