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Senior Network Architect at MetroSys. Location Information: USA. MetroSys is seeking a highly skilled . Senior Network Engineer. to lead the . implementation and delivery of a multi-phase network transformation initiative. . This role is responsible for executing against a defined Statement of Work, including . design validation, staging, migration, integration, and cutover activities. for a next-generation network architecture.. The ideal candidate is hands-on, detail-oriented, and experienced in . data center networking, routing, security, and large-scale migrations. , with the ability to drive execution while maintaining alignment with architectural standards.. Key Responsibilities. Execute delivery of a multi-phase . Network 2.0 transformation. , including design validation, staging, migration, integration, and service cutover. Implement and support . Arista-based data center fabric architectures. , including EVPN/VXLAN, MLAG, and BGP-based designs. Configure and integrate . Palo Alto firewalls. , including NAT migration, policy design, and Panorama management. Support . datacenter consolidation and interconnect design. , including redundant circuits and VPN failover strategies. Deploy and validate . core, edge, and management network components. aligned to defined architecture standards. Implement:. eBGP/iBGP routing at the edge. OSPF underlay with MP-BGP EVPN overlay. VRF segmentation across multiple security zones. Lead . staging and proof-of-concept validation. , including failover testing, interoperability, and performance validation. Migrate legacy configurations (e.g., Juniper) into new . Arista and Palo Alto environments. Execute . phased integration and cutover activities. with minimal service disruption. Develop and execute . service migration plans. , including rollback strategies and validation procedures. Perform . post-cutover validation. , ensuring routing convergence, security enforcement, and service availability. Collaborate with client and ISP teams to coordinate . change windows and integration activities. Produce and maintain . detailed technical documentation, runbooks, and validation reports. Required Qualifications. 5–8+ years. of experience in enterprise networking and infrastructure implementation. Strong hands-on expertise with:. Arista EOS (EVPN/VXLAN, MLAG, BGP). Palo Alto firewalls (policy, NAT, Panorama). Deep understanding of:. Routing protocols (BGP, OSPF). Data center networking and segmentation (VRFs, VLANs). High availability design (ECMP, BFD, clustering). Experience with . network migrations, cutovers, and large-scale infrastructure transitions. Ability to translate architecture into . real-world configurations and execution plans. Strong troubleshooting and validation skills across . routing, security, and connectivity layers. Experience working in . client-facing or professional services environments