Senior Network Architect

seeking a Senior Network Architect (Subject Matter Expert) to support a key customer initiative. This role requires deep technical expertise in enterprise routing and modern data center networking, combined with a strong operational mindset. The ideal candidate is a hands-on architect who can design, implement, and support complex network environments while maintaining stability in live production systems. This individual will play a critical role in shaping network strategy, driving innovation, and ensuring high availability across enterprise infrastructure. Key Responsibilities Own and evolve enterprise routing architecture with a focus on BGP and OSPF, including policy design, traffic engineering, and convergence optimization Design and operate modern data center fabrics (spine-leaf architectures, VXLAN/EVPN) with integration into cloud and virtualized environments Lead and execute complex network changes and migrations with minimal to zero service disruption Serve as a top-tier escalation point, driving issues from initial symptoms to root cause across network, security, and application layers Perform deep packet and protocol analysis using tools such as Wireshark and PCAP Design and enhance network segmentation, access control, and visibility, leveraging tools like Cisco ISE and Gigamon Integrate and support secure access and edge solutions (e.g., Zscaler, Cisco FTD) Evaluate existing network environments and recommend improvements for performance, scalability, and operational efficiency Balance architectural leadership with hands-on engineering and troubleshooting Required Qualifications Demonstrated CCIE-level expertise (certification not required) Extensive experience designing and supporting large-scale enterprise networks Advanced knowledge of BGP, OSPF, and VXLAN/EVPN architectures Strong hands-on experience with Cisco platforms (Nexus, Catalyst, NX-OS, IOS-XE) Proven experience with Network Access Control (NAC) solutions (Cisco ISE or equivalent) Experience with network visibility tools (Gigamon or similar) Deep understanding of TCP/IP and packet-level behavior Ability to troubleshoot complex issues in high-pressure production environments 3B Staffing LLC