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Data Center Network Engineer(Cisco CX
4 weeks ago
Total Exp : 8 to 12 YearsLocations : Delhi / Noida / HyderabadWe are seeking a seasonedLevel 3 Datacenter Network Engineerwith in-depth experience inCisco and Aruba networking technologies . The ideal candidate will lead the design, implementation, and troubleshooting of high-performance data center infrastructure with a focus onhigh availability, security, and scalability . You will serve as a technical SME for complex network problems, architecture decisions, and cross-platform integrations in modern hybrid environments.Key Responsibilities:Design & Architecture:Design and deployresilient, high-speed, low-latency network topologiesacross data center fabric using Cisco Nexus (3K/5K/7K/9K) and Aruba CX switches.Architect Layer 2/Layer 3 networks with:VXLAN/EVPN overlaysBGP EVPN ,OSPF ,LACPVPC, MLAG, VSXDesign and implementfabric-basedtopologies andSpine-Leaf architectures ..ConfigureCisco Nexus (NX-OS)andAruba CX (AOS-CX)Deploy and manageL2/L3 segmentation ,VRFs ,VLANs ,SVIs ,Private VLANs , andinter-VLAN routing .Implementrouting redistribution ,policy-based routing ,HSPR/VRRP/GLBP , androute filtering .Work with overlay technologies (VXLAN, LISP) and underlay IP fabric (BGP/OSPF).Automation & Monitoring:Automate provisioning usingAnsible, Python , orREST APIsfor Aruba CX and Cisco Nexus (via NX-API or Cisco DNAC).UtilizeNetEdit (Aruba) ,Aruba Fabric Composer , andCisco DCNMorAPICfor centralized management.Performcapacity planning ,failover testing , andperformance tuningof the datacenter network.Leadroot cause analysis (RCA)and troubleshooting of L2/L3 issues, link flaps, STP/RSTP, convergence issues, or fabric-related errors.Serve as Tier 3 escalation point for critical incidents and collaborate with vendors (TAC/Support).Create detailednetwork diagrams ,HLDs/LLDs , andSOPsfor operational teams.Performfirmware upgrades ,code validation , and manage change controls (ITIL-based processes).Required Skills & Experience:8+ years of experience in enterprise or data center networking .Deep hands-on experience with:Cisco Nexus platforms (9K, 7K, 5K, 3K)running NX-OSAruba CX switches (6300, 6400, 8325, 8400)with AOS-CXFabric technologies : VxLAN/EVPN, VSX, MLAG, VPC, LAGRouting protocols : BGP, OSPF, static routingL2 protocols : STP, RSTP, MST, LACP, CDP/LLDPExpertise in:CLI troubleshootingPacket captureswith SPAN/RSPANQoS design , queuing strategies, and buffer tuningDual-stack networking (IPv4/IPv6)Preferred Certifications:Cisco Certified Network Professional (CCNP – Data Center or Enterprise)Soft Skills:Excellent troubleshooting and diagnostic skills under pressure.Strong documentation, diagramming, and presentation abilities.Self-driven with the ability to work independently and lead projects.Clear communication across technical and business teams.Ability to mentor junior engineers and support staff.
