Data Center Network Engineer(Cisco CX

1 day ago


Hyderabad, Telangana, India Tata Consultancy Services Full time ₹ 12,00,000 - ₹ 24,00,000 per year

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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