Senior Network Engineer — Arista & ACI Migration

Tata Consultancy Services Limited; St. Louis (MO); On-site; USD 105,000 - 125,000; Full time

Benefits offered by this job

Discretionary Annual Incentive

Medical Coverage

Dental & Vision

Disability Insurance

401K Plan

Commuter Benefits

Certification & Training Reimbursement

Vacation & Holidays

Job summary

Tata Consultancy Services in Saint Louis, MO is seeking a Senior Network Engineer to lead and support enterprise data-center and network-security infrastructure, with a focus on Arista switching and Cisco ACI-to-Arista migrations.

Responsibilities include deploying Arista EOS/CloudVision, validating migrations, and coordinating with Palo Alto, F5, Imperva WAF, Infoblox, and FireMon. Expect after-hours support as needed.

Qualifications

• Enterprise data-center network engineering experience.
• Strong Layer 2/3 fundamentals including VLANs, VRFs, MLAG, BGP, OSPF.
• Hands-on with Arista EOS and CloudVision.
• Leaf-spine architecture, VXLAN, EVPN familiarity.
• Experience migrating from Cisco ACI to Arista.
• Familiarity with Palo Alto, F5 BIG-IP, Imperva WAF, Infoblox, FireMon.
• Ability to implement plans and rollback procedures.
• Strong packet capture/log/telemetry troubleshooting skills.
• Basic automation with Python/Ansible/Git/REST APIs/Terraform.

Responsibilities

• Support implementation, migration, and operation of data-center and network-security infra.
• Deploy, configure, and troubleshoot Arista switching with EOS and CloudVision.
• Support Cisco ACI-to-Arista migrations.
• Implement routing, switching, segmentation, and high availability changes.
• Coordinate with Palo Alto/Panorama, F5, Imperva WAF, Infoblox, and FireMon.
• Prepare and execute implementation, validation, maintenance, and rollback plans.
• Troubleshoot via packet captures, logs, telemetry, and monitoring platforms.
• Automate repeatable activities using Python/Ansible/Git/REST APIs/Terraform.
• Manage changes through ServiceNow and coordinate migrations with multiple teams.
• Support after-hours maintenance and emergency changes as needed.

Skills

Layer 2/3 networking

VXLAN/EVPN

Troubleshooting

Python scripting

Automation tools

Migration planning

Network security coordination

CloudVision

Arista EOS

Ticketing/Change Mgmt

Tools

Arista EOS

CloudVision

Palo Alto Panorama

F5 BIG-IP

Imperva WAF

Infoblox DNS/DHCP/IPAM

FireMon

Terraform

Ansible

Git

REST APIs

Job description

Tata Consultancy Services in Saint Louis, MO is seeking a Senior Network Engineer to lead and support enterprise data-center and network-security infrastructure, with a focus on Arista switching and Cisco ACI-to-Arista migrations.

Responsibilities include deploying Arista EOS/CloudVision, validating migrations, and coordinating with Palo Alto, F5, Imperva WAF, Infoblox, and FireMon. Expect after-hours support as needed.