Tower Lead - Cisco Centric Infrastructure

HCLTech is seeking an experienced Senior 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.

Job Title: Senior Network Engineer

Job : 109169

Location: Salisbury, North Carolina

• 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.

• Configure and manage:
• Implement:
• EVPN-VXLAN fabric architecture
• Manage and troubleshoot:
• APIC controllers
• Integration with:
• VMware (VMM integration)
• L4-L7 service insertion (firewalls, load balancers)

• 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

• CCNP Data Center or CCNP-Enterprise
• ACE-L3 (Arista Certified Engineering Level
  3) or equivalent hands‑on expertise

• 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

• 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)

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, Cloud Vision, EVPN‑VXLAN fabrics, and integrating with VMware and L4‑L7 services such as firewalls and load balancers.

Pay Range Minimum: $110,000 to year

Pay Range Maximum: $122,000 to year

HCLTech is an equal opportunity employer, committed to providing equal employment opportunities to all applicants and employees regardless of race, religion, sex, color, age, national origin, pregnancy, sexual orientation, physical disability or genetic information, military or veteran status, or any other protected classification, in accordance with federal, state, and/or local law. Should any applicant have concerns about discrimination in the hiring process, they should provide a detailed report of those concerns to  for investigation.

A candidate’s pay within the range will depend on their skills, experience, education, and other factors permitted by law. This role may also be eligible for performance-based bonuses subject to company policies. In addition, this role is eligible for the following benefits subject to company policies: medical, dental, vision, pharmacy, life, accidental death & dismemberment, and disability insurance; employee assistance program;

401(k) retirement plan; 10 days of paid time off per year (some positions are eligible for need-based leave with no designated number of leave days per year); and 10 paid holidays per year