Job Description

TCS Is Hiring For Network Admin ( Cisco . Arista )

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Skill:-Network Admin ( Cisco . Arista )

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Exp:-6 to 8 yr

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Location:- Chennai

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JD

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Mandatory Skills

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Experience with Arista Switches

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Experience with Spine and Leaf Architecture , Routing Protocols – BGP ,OSPF, DMVPN, VLAN, VTP, STP

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Experience with Palo Alto Next Gen Devices and Firewalls Cloud and On Premise

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Experience in administration of Infoblox for DDI

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Experience with Cisco Meraki SD WAN , MX , MS ,MR devices

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Experience in Network Automation using Python or Terraform

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Experience in Datadog Monitoring and Vulnerability Remediation for Network Devices using Brinqa tool

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Experience in managing OOB Devices Raritan , Open Gear

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Job Requirements*

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Experience in Cisco Routing & Switching

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Hands-on experience with DMVPN, IPsec, OSPF and EIGRP.

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Expertise in Arista Switches and Enterprise wireless technologies.

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Solid understanding of TCP/IP, QoS, multicast, SNMP, and network fundamentals.

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Hands-on experience with Palo Alto NG Devices and Firewalls

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Hands-on experience with Infoblox to manage DDI

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Deep understanding of, TCP/IP, Routing & NAT, L7 security, Threat prevention

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Robust expertise in, Panorama, HA configuration

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Proven experience managing critical incident escalations.

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Familiarity with ITIL processes, ticketing tools, change and problem management.

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Key Responsibilities*

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- Routing & Switching
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- BGP configuration & Troubleshooting WAN links
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- Deploy new vlan and troubleshooting end user network issue
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- Firmware upgrade for Cisco, Arista devices
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- Cisco Meraki
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- Monitoring and VPN configuration
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- Firmware upgrade
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- RMA Device replacement
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- Cisco TACACS/ISE
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- Adding & deleting devices

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- Palo-alto SD-WAN (Prisma ION 9000)
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- Configuration and traffic re-route
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- Firmware upgrade
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- Experience in troubleshooting Enterprise infrastructure involving MPLS, EGP (BGP) and IGP (OSPF) protocols & Static configuration
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- Good experience in Datacenter Network spine/leaf architecture & troubleshooting
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- F5 Load balancer
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- Adding/Deleting nodes, VIP creation
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- SSL certificate update & renewal
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- Firmware upgrade
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- Firewall (ASA / Palo Alto)
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- NAT, Policy creation, object-group
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- Firmware Upgrade
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- Security policy creation via Terraform
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- Infoblox
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- DNS/DHCP creation and subnet allocation

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- Experience in coordination tasks with service provider for link issues
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- Experience in working with Cisco for TAC and RMA support
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Exposure Data Dog and Cisco Meraki Dashboards

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Participate in firewall design, deployments, and migrations.

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Ensure compliance with security standards and audit requirements.

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Review logs regularly to identify threats and recommend improvements.

📌 Network Admin ( Cisco. Arista ) (Tamil Nadu)
🏢 Tata Consultancy Services
📍 Tamil Nadu