Senior Network Architect

Remote
Contracted
Experienced

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
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