Senior Cisco Network Engineer (Advanced Routing, Security & SD-WAN Specialist) Job at North Star Group, San Antonio, TX

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  • North Star Group
  • San Antonio, TX

Job Description

We are seeking a Senior Cisco Network Engineer with deep, hands-on expertise in enterprise routing, switching, advanced firewalling, network segmentation, Cisco SD-WAN (Viptela), automation, and high-availability architectures .
This role requires mastery of IOS-XE, NX-OS, ASA/FTD, ISE, DNA Center, Zero Trust Network Access, and large-scale multi-site network design .

The ideal candidate has operated, optimized, and secured mission-critical, global networks with strict uptime, low latency, and regulatory compliance requirements.

1. Enterprise Routing & Switching (Expert-Level)
  • Architect and implement complex Layer 2/3 routing solutions using:
    • BGP, OSPF, EIGRP, IS-IS
    • Route redistribution, filtering, and policy-based routing
    • EVPN/VXLAN multi-site architectures
  • Optimize large campus and data center networks on Cisco Catalyst, Nexus, ASR/ISR platforms .
  • Troubleshoot latency, convergence, flapping routes, path asymmetry, and spanning-tree issues at global scale.
2. Cisco SD-WAN (Viptela) & WAN Modernization
  • Design, deploy, and tune Cisco SD-WAN fabric , including controllers, edge, transport redundancy, and templates.
  • Build hybrid WAN architectures integrating MPLS, DIA, 5G, and cloud edges.
  • Implement advanced SD-WAN features:
    • AAR/AD- policies
    • Centralized policy frameworks
    • Segmentation via VPN/VRF
    • Application-aware routing & QoS for voice/video
3. Network Security, Segmentation & Zero Trust
  • Architect Zero Trust frameworks using:
    • Cisco ISE (Advanced)
    • TrustSec / SGT
    • pxGrid
    • MACSec, 802.1x, posture assessment
  • Expert-level firewalling with Cisco ASA, Firepower (FTD), FMC , including:
    • Deep packet inspection
    • Threat Intelligence Director
    • NAT, VPN (Site-Site + RA), SSL/TLS decryption
  • Design micro-segmentation and macro-segmentation for enterprise networks.
4. Data Center & Multi-Cloud Networking
  • Expert with Cisco Nexus 5k/7k/9k , ACI Architecture:
    • Fabric policies
    • Contracts & filters
    • Leaf/Spine topology
    • Multi-pod & Multi-site designs
  • Implement multi-cloud connectivity to AWS/Azure/GCP using:
    • Transit gateways
    • Cloud routers
    • SD-WAN cloud on-ramp
    • Encrypted IPSec & tunnels
5. Network Automation & Programmability
  • Build automation using:
    • Python, Ansible, Terraform, Postman API testing
    • Cisco DNA Center APIs
    • NETCONF/RESTCONF/YANG models

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