Senior Network Engineer - Cisco ACI (L4)

Location : Mumbai

Employment Type : Full-time

Shift : Rotational

Weekly Off :

Depending on workload

Joining Timeline : Immediate

Experience : 16+ years

Job Description

We are seeking an experienced

Senior Network Engineer (Cisco ACI – Level 4)

with

16+ years of experience

in enterprise networking and data center infrastructure. The candidate will be responsible for leading complex Cisco ACI implementations, optimizing network performance, ensuring high availability, and acting as a subject matter expert for all ACI-related operations.

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.