Data Center Network Engineer — Cisco NX-OS/ACI Expert

QualX Corporation; Memphis (TN); On-site; USD 100,000 - 124,000; Full time

Job summary

QualX Corporation in Memphis, TN is seeking a Network Engineer to join the IRS Enterprise Computing Center data center operations team. The role focuses on designing, deploying, and maintaining advanced data center networking technologies for mission-critical workloads using Cisco Nexus NX-OS, Catalyst IOS-XE, and ACI fabrics.

You'll work on spine-leaf architectures, routing, QoS, security ACLs, automation with Ansible, and monitoring with SNMP tools.

Qualifications

• Extensive experience with Cisco Nexus NX-OS and Catalyst IOS-XE platforms.
• Hands-on experience with Cisco ACI fabric technologies.
• Strong knowledge of routing and switching protocols (EIGRP, OSPF, BGP, STP).
• Experience with high-availability designs and redundancy protocols (HSRP, vPC, StackWise Virtual, etc.).
• Practical experience with copper and fiber cabling standards and optics.
• Familiarity with network automation (Ansible, Linux scripting).
• Proficiency with monitoring tools, SNMP, and troubleshooting utilities (Wireshark).
• Strong documentation, diagramming, and change management skills.

Responsibilities

• Design, Implementation, and Operations: Deploy, configure, and manage Cisco Nexus (NX-OS) platforms and Catalyst IOS-XE platforms; support spine-leaf and collapsed core architectures; configure ACI fabric and vPC domains; manage routing protocols and optimization.
• Network Resiliency and Performance: Implement and troubleshoot QoS; configure redundancy technologies (STP, LACP, HSRP, StackWise Virtual, BFD, dual-homing).
• Infrastructure and Cabling: Deploy and manage copper and fiber cabling; select optics/transceivers for data center interconnects.
• Security and Access Control: Apply ACLs and route-maps; support change management and standards compliance.
• Automation, Tools, and Monitoring: Use Ansible and Linux for automation; leverage Nexus Dashboard/Insights/Data Broker; manage SNMP-based monitoring and Wireshark analysis.
• Collaboration and Documentation: Work with virtualization teams (VMware vSphere, VRFs); document designs and changes; support ITSM workflows (ServiceNow).

Skills

Cisco NX-OS

Cisco ACI

Routing protocols

High availability

Copper and fiber cabling

Network automation

Wireshark

SNMP monitoring

Documentation / change management

Education

Bachelor's Degree

Tools

Cisco Nexus Dashboard

Cisco Insights

Cisco Data Broker

Job description

QualX Corporation in Memphis, TN is seeking a Network Engineer to join the IRS Enterprise Computing Center data center operations team. The role focuses on designing, deploying, and maintaining advanced data center networking technologies for mission-critical workloads using Cisco Nexus NX-OS, Catalyst IOS-XE, and ACI fabrics.

You'll work on spine-leaf architectures, routing, QoS, security ACLs, automation with Ansible, and monitoring with SNMP tools.