Network & Firewall Administrator

Tata Consultancy Services; Hyderabad, Bengaluru; On-site; INR 600,000 - 1,000,000; Full time

Job summary

Tata Consultancy Services Hyderabad is seeking an experienced Network Administrator to monitor and manage routing, switching, Meraki, SD-WAN, firewalls, and Azure networking. You will work with monitoring tools like Datadog, ThousandEyes, and Splunk to maintain performance and security.

Responsibilities include configuring Cisco devices, managing firewall policies (Palo Alto, FortiGate, Cisco), SD-WAN devices, firmware upgrades, VPNs, wireless controllers, and liaison with vendors to resolve

Qualifications

• Experience in monitoring network performance, availability and security.
• Proficient in configuring Cisco routers/switches in LAN/WAN.
• Experience with Meraki, SD-WAN devices and firewall management.

Responsibilities

• Continuously monitor network performance and security using Meraki, SD-WAN, and monitoring tools.
• Configure and manage Cisco routers/switches for LAN/WAN and Azure networks.
• Manage firewall solutions and VPN configurations with policy optimization.
• Operate wireless controllers and access points, troubleshoot hardware.
• Collaborate with vendors and service providers for escalations and resolution.
• Identify SD-WAN path failures and misconfigurations impacting performance.
• Validate routing tables, ACLs, VPNs, QoS, and firewall policies.
• Remediate Meraki device issues via cloud management platform.
• Log troubleshooting steps and resolutions for incident records.
• Recommend design upgrades to simplify troubleshooting.

Skills

Networking

Routing & Switching

Meraki

SD-WAN

Firewall

Azure Networking

Monitoring Tools

Datadog

Splunk

Voice Services Monitoring

Tools

Cisco IOS

Meraki Dashboard

Cisco SD-WAN vManage

Palo Alto

FortiGate

Job description

Role & responsibilities

Network Admin - Knowledge on Routing and Switching, MERAKI, SDWAN, Firewall, Azure Network, Voice Services Monitoring tools like Datadog, Thousand eye and Splunk.

1. 1.Continuously monitor network performance, availability, and security using Meraki Dashboard, Cisco SD-WAN vManage, Firewall, Thousand eye tools, Splunk and Datadog.
2. 2 Configure, deploy, and manage Cisco routers and switches in LAN/WAN environments for continual service and Azure networks
3. 3 Configure and manage Cisco, Meraki devices, Firewall, SDWAN Devices and firmware upgrades, patches, and configuration changes during maintenance windows while ensuring minimal disruption.
4. 4 Firewall Administration - Configure, implement, and maintain firewall solutions (Palo Alto, fortigate, Cisco). Create, review, and optimize firewall security policies and access control rules. Perform firewall upgrades, patching, and firmware management. Manage VPN configurations and secure remote access.
5. 5 Management of Wireless controller and access point
6. 6 Troubleshooting hardware related issue on Catalyst , Meraki and SDWAN devices
7. 7 Work closely with support teams, vendors (Cisco TAC, Meraki support), and service providers for escalations and troubleshooting to maintain a continual Support and service for the Infra
8. 8 Identify and resolve SD-WAN path failures, tunnel issues, or policy misconfigurations impacting application performance or site connectivity.
9. 9 Validate routing tables, ACLs, VPN configurations, QoS settings, and firewall policies to ensure they are correctly implemented as intended.
10. 10 Managing and remediate Meraki device issues, such as AP connectivity problems, switch port errors, or security appliance alerts, through the cloud management platform.
11. 11 Leverage Cisco IOS logs, Meraki event logs, SD-WAN troubleshooting dashboards, syslogs, and SNMP traps for in-depth troubleshooting.
12. 12 Validate routing tables, ACLs, VPN configurations, QoS settings, and firewall policies to ensure they are correctly implemented as intended.
13. 13 Update network documentation and incident logs with troubleshooting steps, resolutions, and lessons learned.
14. 14 Recommend upgrades or design changes to minimize common faults or simplify troubleshooting efforts.