Senior Network Architect

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