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 ResponsibilitiesExecute delivery of a multi-phase Network 2.0 transformation, including design validation, staging, migration, integration, and service cutoverImplement and support Arista-based data center fabric architectures, including EVPN/VXLAN, MLAG, and BGP-based designsConfigure and integrate Palo Alto firewalls, including NAT migration, policy design, and Panorama managementSupport datacenter consolidation and interconnect design, including redundant circuits and VPN failover strategiesDeploy and validate core, edge, and management network components aligned to defined architecture standardsImplement:eBGP/iBGP routing at the edgeOSPF underlay with MP-BGP EVPN overlayVRF segmentation across multiple security zonesLead staging and proof-of-concept validation, including failover testing, interoperability, and performance validationMigrate legacy configurations (e.g., Juniper) into new Arista and Palo Alto environmentsExecute phased integration and cutover activities with minimal service disruptionDevelop and execute service migration plans, including rollback strategies and validation proceduresPerform post-cutover validation, ensuring routing convergence, security enforcement, and service availabilityCollaborate with client and ISP teams to coordinate change windows and integration activitiesProduce and maintain detailed technical documentation, runbooks, and validation reportsRequired Qualifications5–8+ years of experience in enterprise networking and infrastructure implementationStrong 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 transitionsAbility to translate architecture into real-world configurations and execution plansStrong troubleshooting and validation skills across routing, security, and connectivity layersExperience working in client-facing or professional services environmentsOriginally posted on Himalayas