Tata Consultancy Services
Network Admin ( Cisco . Arista )
Skills
2 months ago
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Important information
Contract type:
Permanent
Location:
Chennai, Tamil Nadu, India
Work mode:
Onsite
Published on:
7 September 2026
What they need
TCS Is Hiring For Network Admin ( Cisco . Arista )
Skill:-Network Admin ( Cisco . Arista )
Exp:-6 to 8 yr
Location:- Chennai
JD
Mandatory Skills
Experience with Arista Switches
Experience with Spine and Leaf Architecture , Routing Protocols – BGP ,OSPF, DMVPN, VLAN, VTP, STP
Experience with Palo Alto Next Gen Devices and Firewalls Cloud and On Premise
Experience in administration of Infoblox for DDI
Experience with Cisco Meraki SD WAN , MX , MS ,MR devices
Experience in Network Automation using Python or Terraform
Experience in Datadog Monitoring and Vulnerability Remediation for Network Devices using Brinqa tool
Experience in managing OOB Devices Raritan , Open Gear
Job Requirements*
Experience in Cisco Routing & Switching
Hands-on experience with DMVPN, IPsec, OSPF and EIGRP.
Expertise in Arista Switches and Enterprise wireless technologies.
Solid understanding of TCP/IP, QoS, multicast, SNMP, and network fundamentals.
Hands-on experience with Palo Alto NG Devices and Firewalls
Hands-on experience with Infoblox to manage DDI
Deep understanding of, TCP/IP, Routing & NAT, L7 security, Threat prevention
Strong expertise in, Panorama, HA configuration
Proven experience managing critical incident escalations.
Familiarity with ITIL processes, ticketing tools, change and problem management.
Key Responsibilities*
Routing & Switching
BGP configuration & Troubleshooting WAN links
Deploy new vlan and troubleshooting end user network issue
Firmware upgrade for Cisco, Arista devices
Cisco Meraki
Monitoring and VPN configuration
Firmware upgrade
RMA Device replacement
Cisco TACACS/ISE
Adding & deleting devices
Palo-alto SD-WAN (Prisma ION 9000)
Configuration and traffic re-route
Firmware upgrade
Experience in troubleshooting Enterprise infrastructure involving MPLS, EGP (BGP) and IGP (OSPF) protocols & Static configuration
Good experience in Datacenter Network spine/leaf architecture & troubleshooting
F5 Load balancer
Adding/Deleting nodes, VIP creation
SSL certificate update & renewal
Firmware upgrade
Firewall (ASA / Palo Alto)
NAT, Policy creation, object-group
Firmware Upgrade
Security policy creation via Terraform
Infoblox
DNS/DHCP creation and subnet allocation
Experience in coordination tasks with service provider for link issues
Experience in working with Cisco for TAC and RMA support
Exposure Data Dog and Cisco Meraki Dashboards
Participate in firewall design, deployments, and migrations.
Ensure compliance with security standards and audit requirements.
Review logs regularly to identify threats and recommend improvements.
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