Sr. Data Center Network Engineer
IS3 Solutions
Senior Data Center Network Engineer Overview We are seeking a Senior Data Center Network Engineer with 10+ years of enterprise and data center networking experience to support the structured decommissioning of brownfield data center infrastructure. The right candidate has deep hands-on experience with Cisco platforms, multi-vendor environments, and has personally executed device retirements - not just supervised them. Key Responsibilities
- Conduct network audits to identify devices targeted for decommissioning
- Back up configurations, VLAN databases, and routing tables prior to any retirement activity
- Design and execute traffic migration strategies to reroute services before decommissioning
- Decommission routers, switches, and firewalls; update network diagrams and topology documentation accordingly
- Migrate legacy platforms (e.g., Catalyst 6500, Brocade) to modern infrastructure (Nexus 7K/5K/2K) as part of consolidation efforts
- Lead terminal server consolidation and streamline out-of-band access methods
- Perform post-migration validation (PAT/NRFU) to confirm service continuity
- Operate within change-controlled environments with CAB approval processes
- Collaborate with cross-functional teams to coordinate decommission timelines
- Routing protocols: OSPF, BGP, EIGRP, MPLS
- Switching: VLANs, VTP, STP/MSTP, EtherChannel, vPC, VDC, OTV
- Cisco Nexus (9K, 7K, 5K, 2K), Catalyst (6500, 9300, 4500), ASR routers
- Cisco ACI - Spine-Leaf architecture, fabric path, legacy integration
- Juniper MX/EX switches and routers a plus
- F5 BIG-IP LTM/GTM experience a plus
- EVPN, VXLAN, data center fabric technologies
- Python scripting and/or Ansible for configuration auditing and automation
- NMS tools: SolarWinds, CiscoWorks, or equivalent
- Proficient in network diagramming (Visio or equivalent)
- CCNP required (Enterprise or Data Center track)
- CCIE Data Center strongly preferred
- PMP or ITIL Foundation a plus
Vacancy posted 3 days ago
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