Senior Cisco ACI & Nexus Network Engineer (DC SDN)

Core BTS, Inc.; Milwaukee (WI); On-site; USD 110,000 - 170,000; Full time

Job summary

Core BTS, Inc. is seeking a skilled Cisco ACI Engineer for a contract engagement in Milwaukee, WI.

The role focuses on design, deployment, and optimization of Cisco ACI environments, ensuring alignment with enterprise infrastructure and security requirements. The ideal candidate has extensive data center networking experience, hands-on Nexus switching (9000/7000 series), APIC management, and expertise in VXLAN, VRF, EPGs, and related policies.

Qualifications

• 7 years of enterprise network engineering experience with Cisco ACI.
• Deep expertise in Nexus switching (Nexus 9000/7000/5000/2000).
• Hands-on experience with ACI Fabric Deployment, APIC, and policy-based networking.
• Strong routing protocols knowledge: BGP, OSPF, EIGRP, VXLAN, EVPN.
• Data center networking, SDN, and network automation.
• Excellent communication and collaboration skills.

Responsibilities

• Configure and maintain Cisco ACI fabric in an enterprise environment.
• Configure Nexus 9000 switches in ACI and NX-OS modes.
• Manage APIC configurations, policies, and troubleshooting.
• Implement VXLAN, VRF, EPGs, contracts, L3Out, and multi-site ACI architectures.
• Troubleshoot network performance issues, coordinating with cross-functional teams.
• Document network designs, SOPs, and best practices.

Skills

Cisco ACI

Nexus switching

APIC management

VXLAN/EVPN

SDN

Automation

Communication

Tools

Nexus 9000 series

Nexus NX-OS

APIC

Job description

Core BTS, Inc. is seeking a skilled Cisco ACI Engineer for a contract engagement in Milwaukee, WI.

The role focuses on design, deployment, and optimization of Cisco ACI environments, ensuring alignment with enterprise infrastructure and security requirements. The ideal candidate has extensive data center networking experience, hands-on Nexus switching (9000/7000 series), APIC management, and expertise in VXLAN, VRF, EPGs, and related policies.