Senior Network Engineer – Cisco ACI (L4)

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Experience:

Senior Network Engineer (Cisco ACI – Level 4)

Key Responsibilities

• Design, deploy, and manage

  Cisco ACI fabrics

  including APIC clusters, leaf/spine architecture, multi-site and multi-tenant setups.
• Integrate and manage

  L4/L7 services

  (firewalls, load balancers, WAFs) through service insertion and service graphs.
• Define and enforce

  ACI policies, contracts, EPGs, and bridge domains

  for traffic control and segmentation.
• Lead

  network migration and transformation projects

  ensuring minimal downtime.
• Integrate ACI with

  virtualization, cloud platforms, and automation frameworks

  .
• Troubleshoot and resolve

  complex ACI and network issues

  while maintaining high uptime.
• Prepare

  HLD/LLD documentation, architecture diagrams, and operational runbooks

  .
• Drive

  automation

  using scripting and configuration management tools like Python, Ansible, and REST APIs.
• Collaborate with cross-functional teams (security, infrastructure, and applications) to align network strategy with business needs.
• Mentor and guide network engineers, providing technical leadership and support for escalations.

Required Skills & Experience

• 16+ years

  of experience in enterprise-level networking and data center environments.
• Expert-level knowledge of

  Cisco ACI

  ,

  Nexus platforms

  , and

  data center fabric technologies

  .
• Strong command of

  routing/switching protocols

  (BGP, OSPF, IS-IS) and

  overlay/underlay technologies

  (VXLAN, EVPN).
• Hands-on experience in

  network automation

  (Python, Ansible, REST API).
• Excellent problem-solving and troubleshooting skills in

  mission-critical networks

  .
• Strong communication and leadership skills with the ability to handle L4-level escalations.

Preferred Qualifications

• CCIE (Data Center / Enterprise)

  or equivalent advanced certifications.
• Experience in

  SDN, NFV, hybrid/multi-cloud networking

  , and container-based networking.
• Familiarity with

  observability and performance monitoring tools

  .

Highlights

• Opportunity to work on

  advanced Cisco ACI environments

  .
• Involvement in

  high-availability, large-scale network projects

  .
• Exposure to

  cutting-edge data center and automation technologies

  .
• Excellent growth and learning potential.