Data Center Network Engineer(Cisco CX

2 days ago

New Delhi, India Tata Consultancy Services Full time

Total Exp : 8 to 12 Years Locations : 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 overlays BGP EVPN ,OSPF ,LACP VPC, MLAG, VSX Design 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-OS Aruba CX switches (6300, 6400, 8325, 8400)with AOS-CX Fabric technologies : VxLAN/EVPN, VSX, MLAG, VPC, LAG Routing protocols : BGP, OSPF, static routing L2 protocols : STP, RSTP, MST, LACP, CDP/LLDP Expertise in: CLI troubleshooting Packet captureswith SPAN/RSPAN QoS design , queuing strategies, and buffer tuning Dual-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.

  • Data Center Network Engineer(Cisco CX

    2 days ago

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