Senior Enterprise Architect — WAN/Transport

M9 Solutions is seeking a Senior Enterprise Architect - WAN/Transport to work hybrid remote/onsite in support of a government contract for a client located in Reston, VA. An active TS/SCI clearance is required.

Responsibilities

• WAN/transport design recommendations for mission networks: site connectivity, segmentation, resiliency, performance engineering across classified and unclassified enclaves.
• L0 circuit configurations, including CLLI circuit route options across CONUS and OCONUS.
• Optimized WAN transport design using Optical Transport Network (OTN) and ITU-T standards G.709, G.798, G.872; plus MPLS/IP, Ethernet, VPN/IPsec, SDWAN, SASE/SSE.
• WAN work package deliverables: HLD/LLD, logical/physical diagrams, IP plans, routing/QoS policies, security boundary requirements, BOM/part lists, rack elevations, configuration templates, interface cut sheets.
• Methods of Procedure (MOPs), implementation plans, cutover schedules, rollback procedures, and test/validation plans.
• Network engineering compliance evidence: configuration baselines, implementations, boundary descriptions, and support.
• Tier 3/4 troubleshooting and root cause analysis (routing instability, path asymmetry, MTU, encryption overlays, QoS, and provider impairments).
• WAN capacity planning: bandwidth, optical/Carrier Ethernet capacity, routing headroom, power/cooling, and lifecycle/EOL.
• L0 circuit delivery/integration/activation coordination, as-built documentation.
• ROM estimates and cost models for new sites, routes, and WAN services.

Required Skills and Qualifications

• Active TS/SCI security clearance.
• Work Authorization: US Citizenship is required.
• BA/BS and 14 - 17+ years of related experience; OR Master's degree and 13+ years of related experience; OR PhD/JD and 10+ years of related experience.
• 14+ years progressive WAN/transport engineering, network architecture, or telecommunications experience.
• Deep expertise in OTN and ITU-T standards G.709, G.798, G.872.
• MPLS/IP, Ethernet, VPN/IPsec overlays, and enterprise/carrier WAN design patterns.
• Advanced routing and traffic engineering (BGP, OSPF/ISIS), path control, convergence.
• SDWAN and secure connectivity patterns (SASE/SSE), segmentation, and policy design.
• QoS design (marking, queuing, shaping), performance engineering (latency/jitter/loss), and capacity planning.
• Network security technologies, boundary protections, and Zero Trust networking principles.
• Demonstrated ability to create field-ready engineering packages (diagrams, IP plans, BOMs, configuration templates, implementation steps, cutover/rollback, and test/validation).
• Excellent technical writing - engineering documentation and briefing technical/non-technical stakeholders.
• CONUS/OCONUS travel required.

M9 Solutions is seeking a Senior Enterprise Architect - WAN/Transport to work hybrid remote/onsite in support of a government contract for a client located in Reston, VA. An active TS/SCI clearance is required.

Responsibilities

• WAN/transport design recommendations for mission networks: site connectivity, segmentation, resiliency, performance engineering across classified and unclassified enclaves.
• L0 circuit configurations, including CLLI circuit route options across CONUS and OCONUS.
• Optimized WAN transport design using Optical Transport Network (OTN) and ITU-T standards G.709, G.798, G.872; plus MPLS/IP, Ethernet, VPN/IPsec, SDWAN, SASE/SSE.
• WAN work package deliverables: HLD/LLD, logical/physical diagrams, IP plans, routing/QoS policies, security boundary requirements, BOM/part lists, rack elevations, configuration templates, interface cut sheets.
• Methods of Procedure (MOPs), implementation plans, cutover schedules, rollback procedures, and test/validation plans.
• Network engineering compliance evidence: configuration baselines, implementations, boundary descriptions, and support.
• Tier 3/4 troubleshooting and root cause analysis (routing instability, path asymmetry, MTU, encryption overlays, QoS, and provider impairments).
• WAN capacity planning: bandwidth, optical/Carrier Ethernet capacity, routing headroom, power/cooling, and lifecycle/EOL.
• L0 circuit delivery/integration/activation coordination, as-built documentation.
• ROM estimates and cost models for new sites, routes, and WAN services.

Required Skills and Qualifications

• Active TS/SCI security clearance.
• Work Authorization: US Citizenship is required.
• BA/BS and 14 - 17+ years of related experience; OR Master's degree and 13+ years of related experience; OR PhD/JD and 10+ years of related experience.
• 14+ years progressive WAN/transport engineering, network architecture, or telecommunications experience.
• Deep expertise in OTN and ITU-T standards G.709, G.798, G.872.
• MPLS/IP, Ethernet, VPN/IPsec overlays, and enterprise/carrier WAN design patterns.
• Advanced routing and traffic engineering (BGP, OSPF/ISIS), path control, convergence.
• SDWAN and secure connectivity patterns (SASE/SSE), segmentation, and policy design.
• QoS design (marking, queuing, shaping), performance engineering (latency/jitter/loss), and capacity planning.
• Network security technologies, boundary protections, and Zero Trust networking principles.
• Demonstrated ability to create field-ready engineering packages (diagrams, IP plans, BOMs, configuration templates, implementation steps, cutover/rollback, and test/validation).
• Excellent technical writing - engineering documentation and briefing technical/non-technical stakeholders.
• CONUS/OCONUS travel required.