Network Infrastructure Engineer

Network Infrastructure Engineer

The Mississippi Department of Revenue (DOR) is seeking a highly skilled Network Infrastructure Engineer to support enterprise networking, data center modernization, identity-driven access, and observability platforms. The ideal candidate will have deep expertise in Cisco ACI, Cisco SDA, Cisco ISE, Palo Alto Firewalls, Cisco Catalyst platforms, and large-scale enterprise network architecture.

Key Responsibilities

• Design, implement, and maintain Cisco ACI data center fabrics • Configure and support Cisco Nexus, VRFs, Bridge Domains, EPGs, ESGs, L3Outs, and contracts • Integrate Cisco ACI with OpenShift VMM and Cilium/Isovalent • Deploy and support Cisco Catalyst and Software-Defined Access (SDA) environments • Administer Cisco ISE for TACACS+, NAC, authentication, authorization, and endpoint profiling • Manage Palo Alto next-generation firewalls, security policies, and threat protection • Deploy and support ThousandEyes, Cyber Vision, and DNA Spaces platforms • Troubleshoot complex Layer 2/Layer 3 networking issues including OSPF, BGP, STP, VLANs, and multicast • Create network architecture documentation, standards, diagrams, and operational procedures • Support modernization initiatives, platform upgrades, and statewide technology projects

Required Skills & Experience

• 15+ years of Cisco networking experience • Hands-on Cisco ACI experience in production environments • Strong knowledge of ACI constructs:

• VRF
• BD (Bridge Domains)
• EPG / ESG
• L3Out
• Contracts
• Experience integrating ACI with OpenShift VMM and Cilium/Isovalent
• Experience with Cisco Catalyst platforms and SDA technologies
• Experience administering Cisco ISE including TACACS+ and policy-based NAC
• Experience with ThousandEyes, Cyber Vision, and DNA Spaces
• Strong TCP/IP, routing, switching, QoS, and network security expertise
• Strong documentation, architecture, and troubleshooting skills
• Excellent analytical, communication, and problem-solving abilities