Data Center Network Engineer

Role & responsibilities

Experience 5+ years

Location delhi ncr hyderabad

Preferred candidate profile

Level 3 Datacenter Network Engineer

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.