Working experience on Cisco ACI is a must.5+ years of experience in network engineering and/or architecture. Minimum of 3 years of hands-on routing, switching and load balancing experience, preferably in a complex, corporate environment3+ years of experience architecting service provider networks running on IP networks (running Ethernet, OSPF, BGP, MPLS, Layer 2 Switching, etc.).3+ years of experience troubleshooting and resolving complex routing and switching problems in an IP based carrier network. Intimate knowledge of IP and Ethernet industry landscape including IP Core equipment, service enabling devices, Ethernet switch vendors, etc. Expert level knowledge in routing and switching protocol (BGP, OSPF, EIGRP, MPLS)Strong knowledge of LAN technologies (LAN design standards and best practices)Strong knowledge about network security and enterprise security, such as DDOS, Firewall, IPS, Malware detection, etc. Knowledge of cloud infrastructure technologies, such as virtualization, virtual switches, virtual routers is a plus Knowledge or experience with Cisco ACI SDN is a plus