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Data Center Network Engineer(Cisco CX & Aruba CX) - Delhi / Noida / Hyderabad

Data Center Network Engineer(Cisco CX & Aruba CX) - Delhi / Noida / Hyderabad

Tata Consultancy Servicesdelhi, delhi, in
1 day ago
Job description

Total Exp : 8 to 12 Years

Locations : Delhi / Noida / Hyderabad

We are seeking a seasoned Level 3 Datacenter Network Engineer with in-depth experience in Cisco and Aruba networking technologies . The ideal candidate will lead the design, implementation, and troubleshooting of high-performance data center infrastructure with a focus on high 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 deploy resilient, high-speed, low-latency network topologies across 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 implement fabric-based topologies and Spine-Leaf architectures ..
  • Configure Cisco Nexus (NX-OS) and Aruba CX (AOS-CX)
  • Deploy and manage L2 / L3 segmentation , VRFs , VLANs , SVIs , Private VLANs , and inter-VLAN routing .
  • Implement routing redistribution , policy-based routing , HSPR / VRRP / GLBP , and route filtering .
  • Work with overlay technologies (VXLAN, LISP) and underlay IP fabric (BGP / OSPF).

Automation & Monitoring :

  • Automate provisioning using Ansible, Python , or REST APIs for Aruba CX and Cisco Nexus (via NX-API or Cisco DNAC).
  • Utilize NetEdit (Aruba) , Aruba Fabric Composer , and Cisco DCNM or APIC for centralized management.
  • Perform capacity planning , failover testing , and performance tuning of the datacenter network.
  • Lead root 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 detailed network diagrams , HLDs / LLDs , and SOPs for operational teams.
  • Perform firmware 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 captures with 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.
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    Data Center Network • delhi, delhi, in

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