Location: DISA Scott or Fort Meade Clearance Required: Active Secret (Top Secret Eligible/Preferred) Travel: 10% - Rare, but may be required to support customer meetings Position Overview CarverBeth is seeking a highly experienced Time Division Multiplexing (TDM) Elimination Subject Matter Expert (SME) to support large-scale modernization efforts across the Defense Information Systems Network (DISN). This role is critical to the successful transition of legacy TDM-based systems (e.g., SONET, Promina, MSPP) to next-generation IP and optical transport architectures. The ideal candidate will serve as a senior technical leader responsible for engineering, integration, and execution of circuit migrations, enabling the DoD's transition to a modern, resilient, and high-capacity transport network. Primary Responsibilities Technical Leadership & Engineering • Serve as senior SME for TDM elimination and DISN IP optimization efforts • Develop and implement strategies to eliminate legacy TDM interfaces (e.g., RS-232, RS-530, SONET) • Lead the removal and decommissioning of legacy platforms including: • Optical Digital Cross Connect (ODXC) • Multi-Service Provisioning Platforms (MSPP) • ADTRAN multiplexers • Design and implement circuit emulation solutions to translate TDM traffic into Ethernet/IP Network Engineering & Site-Specific Design • Produce detailed engineering deliverables on a site-by-site basis, including: • Identification of sites requiring circuit emulation devices • Development of migration solutions to Ethernet/IP architectures • Integration with DISA Joint Provider Edge (J-PE) and Optical Transport Network (OTN) • Equipment configuration, rack elevations, and buildout requirements • Identification of network dependencies (capacity, ports, DCN, etc.) • Develop Methods of Procedure (MOPs) and transition sequencing strategies Implementation & Field Support • Conduct global site surveys to determine infrastructure requirements, including: • Power, grounding, and rack space • Fiber/copper cabling infrastructure • Data Communications Network (DCN) integration • Develop Bills of Materials (BOMs) to support procurement and implementation • Provide engineering support during provisioning, installation, and turn-up activities Program Integration & Execution • Analyze requirements to identify engineering gaps, risks, and discrepancies, and develop Courses of Action (COAs) • Support program management activities including: • Schedule tracking and milestone alignment • Identification of critical path risks and mitigation strategies • Coordinate with cross-functional teams, mission partners, and external stakeholders to ensure execution success Strategic Planning & Architecture • Compile and analyze existing network architectures to define future-state Ethernet/IP transport strategies • Support development of next-generation transport solutions aligned with DoDIN modernization objectives • Provide technical input to optimize cost, performance, and network resiliency Customer Engagement & Reporting • Lead customer outreach and coordination to support circuit transition planning • Prepare and deliver technical briefings, status updates, and performance metrics • Provide technical reviews of Government documentation and configuration management processes • Represent CarverBeth as a technical authority in meetings with DISA and mission partners Continuous Improvement • Drive improvements in service delivery, cost efficiency, and execution timelines • Recommend innovative solutions to accelerate TDM migration and reduce operational risk Basic Qualifications • Minimum 10+ years of experience in telecommunications engineering or network modernization • Deep expertise in: • TDM technologies (SONET, Promina, MSPP, ODXC) • Circuit-to-packet migration and circuit emulation • Optical transport and IP networking architectures • Proven experience supporting large-scale DoD or DISN network environments • Strong understanding of: • TSO's, TCOSS, and DISA circuits/leases • Ethernet/IP networking • Optical transport (OTN, DWDM) • Joint Provider Edge (J-PE) integration • Experience developing: • Engineering design packages • Methods of Procedure (MOPs) • Bills of Materials (BOMs) • Active Secret clearance with ability to obtain/maintain Top Secret Preferred Qualifications • Direct experience supporting DISA TDM elimination or IP optimization programs • Familiarity with: • SEANet (Serial-to-IP Edge Adaptation) • CTP (Circuit-to-Packet) and NGT-E technologies • Ciena 6500, Cisco 15454, Sycamore SN9K • Background in global network implementation and site survey execution • Strong program integration and stakeholder coordination experience • Experience briefing senior government leadership and technical stakeholders