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# Tower Lead - Cisco Application Centric Infrastructure (ACI)I

- **Company:** HCL America Inc.
- **Location:** United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Automation of Tests, Border Gateway Protocol, Cloud Computing, Data Centers, Enhanced Interior Gateway Routing Protocol, Python (Programming Language), Network Architecture, Routing, Cisco Nexus Switches, Open Shortest Path First (OSPF), Ansible, Systems Integration, Enterprise Software Applications, Load Balancing, Software Troubleshooting, Firewalls (Computer Science), Data Center Networking, Cisco, Vmware
- **Published:** June 22, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=68e5d06d3d2d97b9

## About the Role

Do you have experience in Telecommunications network device configuration?, We are seeking an experienced L3 Network Engineer with strong expertise in Cisco ACI (Application Centric Infrastructure) and Arista Networks (EOS-based data center solutions). The candidate will be responsible for design, implementation, troubleshooting, and optimization of large-scale enterprise/data center network environments., 8-15 years of networking experience
3-5 years of hands-on experience in Cisco ACI
3-5 years of hands-on experience in Arista data center networks
Strong troubleshooting experience in production environments
Deep knowledge of data center networking architectures

Certifications (Mandatory / Preferred)

CCNP Data Center or CCNP Enterprise
ACE-L3 (Arista Certified Engineering Level 3) or equivalent hands-on expertise
CCIE Data Center / CCIE Enterprise Infrastructure

The candidate must demonstrate:
Real-world deployment of ACI fabric (minimum 2-3 implementations)
Experience configuring Arista VXLAN EVPN fabrics
Strong troubleshooting of production outages
Writing automation scripts for network provisioning
Experience in multi-vendor data center environments

Soft Skills

Strong analytical and problem-solving skills
Ability to work under pressure in critical incidents
Excellent communication and documentation skills
Collaboration with cross-functional teams (security, cloud, application teams)
Other Requirements

Arista ACI

Soft Skills

Strong analytical and problem-solving skills
Ability to work under pressure in critical incidents
Excellent communication and documentation skills
Collaboration with cross-functional teams (security, cloud, application teams)

## Description

The role focuses on designing, deploying, and supporting modern data center networks , including Cisco ACI and Arista leaf-spine architectures with VXLAN EVPN overlays. It provides Level-3 support , troubleshooting complex fabric, routing (BGP/OSPF/EIGRP), and control/data-plane issues while performing root cause analysis for major outages. The position also involves automation and integration , managing APIC, CloudVision, EVPN-VXLAN fabrics, and integrating with VMware and L4-L7 services such as firewalls and load balancers., Design and deploy Cisco ACI fabric (Spine-Leaf architecture).
Implement tenant, VRF, bridge domains, EPGs, contracts, and policies in ACI.
Design and implement Arista leaf-spine data center networks using EOS.
Configure VXLAN EVPN overlays in Arista environments.
Develop scalable L3 network architectures supporting enterprise applications.
Provide Level 3 support for critical network incidents.

Troubleshoot:
ACI fabric issues (APIC, leaf/spine nodes, policy issues)
VXLAN/EVPN control-plane and data-plane issues
BGP, OSPF, EIGRP routing problems
Perform root cause analysis (RCA) for major outages.

Arista-Specific Responsibilities

Configure and manage:
Arista EOS (Extensible Operating System)
CloudVision Portal (CVP)

Implement:
EVPN-VXLAN fabric architecture
Automation using eAPI, Ansible, Python

Cisco ACI Responsibilities

Manage and troubleshoot:
APIC controllers
ACI policies, contracts, filters

Integration with:
VMware (VMM integration)
L4-L7 service insertion (firewalls, load balancers)


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