Senior Data Center Network Engineer (Cisco ACI)

Our client is seeking a Senior Data Center Network Engineer to support a large‑scale data center decommissioning and infrastructure consolidation initiative in a complex, brownfield environment for a major banking institution in New York City. This is a permanent, full‑time, on‑site position requiring a 40‑hour work week. Core Responsibilities Conduct detailed network audits to identify specific infrastructure targeted for retirement. Back up all configurations, routing tables, and VLAN databases before starting decommissioning activities. Design and execute robust traffic migration strategies to maintain seamless service continuity. Decommission legacy routers, switches, and firewalls while maintaining accurate network documentation. Migrate legacy infrastructure to modern, high‑performance data center platforms. Lead and manage terminal server consolidation initiatives. Perform thorough post‑migration testing and validation activities to ensure network stability. Operate strictly within formal change management and Change Advisory Board (CAB) approval processes. Partner closely with infrastructure, operations, and project teams to coordinate migration activities. Required Qualifications & Skills Minimum of a Bachelor's degree or equivalent professional work experience. At least 10 years of enterprise and data center networking experience. Advanced, hands‑on expertise with Cisco Data Center Networking technologies including Nexus, Catalyst, ASR, ACI, Routing, and Switching. Proven experience in data center decommissioning, migration planning, and infrastructure consolidation within brownfield environments. High proficiency in Enterprise Routing and Switching Protocols, specifically BGP, OSPF, EIGRP, MPLS, VXLAN, and EVPN. An active Cisco Certified Network Professional (CCNP) Enterprise or CCNP Data Center certification. Exceptional native or bilingual English communication skills. Nice to Have Qualifications & Skills An active Cisco Certified Internetwork Expert (CCIE) Data Center certification is strongly preferred. Hands‑on experience with Juniper MX and EX networking platforms. Operational experience with F5 BIG‑IP Local Traffic Manager (LTM) and Global Traffic Manager (GTM). Proficiency in network automation using Python scripting and/or Ansible. Experience using network management tools such as SolarWinds or CiscoWorks. Familiarity with Visio or equivalent network diagramming tools for documentation. Possession of an ITIL Foundation or Project Management Professional (PMP) certification. #J-18808-Ljbffr MDAEdge