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tata consultancy services asia pacific pte. ltd.

Anson, Singapore Country / Global

Network Software Engineering Lead

Job Description

Role : Network Software Engineering Lead

Required Technical Skill Set: Knowledge on handling L3/L4 activities

No of Requirements: 1

Desired Experience Range: 10 + Years

Desired Competencies (Technical/Behavioral Competency)

Must-Have..

Designs, builds, and maintains data communication networks like LANs, WANs, and cloud infrastructures. Routing and Switching, radius appliances , Firewall, MERAKI, SDWAN, Azure Network, proxies, accelerators, load balancers, traffics shaper and traffic analyser, application gateways , Security and Monitoring tools like Zscaler, site 24x7. ITSM Tools: SMAX

Good-to-Have:

Other Networking flavors

Responsibility of / Expectations from the Role

Configure, deploy, and manage Cisco routers and switches in LAN/WAN environments for continual service, Cisco, Checkpoint, Fortigate, Palo Alto, Firewall and Azure Firewall.

Continuously monitor network performance, availability, and security using Meraki Dashboard, Cisco SD-WAN vManage, Cisco, Checkpoint, Fortigate, Palo Alto, firewall and Azure Firewall.

Configure and manage Cisco, Meraki devices, SDWAN Devices and firmware upgrades, patches, and configuration changes during maintenance windows while ensuring minimal disruption.

Troubleshooting hardware related issue on Catalyst , Meraki and SDWAN devices

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

Identify and resolve SD-WAN path failures, tunnel issues, or policy misconfigurations impacting application performance or site connectivity.

Validate routing tables, ACLs, VPN configurations, QoS settings, and firewall policies to ensure they are correctly implemented as intended.

Managing and remediate Meraki device issues, such as AP connectivity problems, switch port errors, or security appliance alerts, through the cloud management platform.

Leverage Cisco IOS logs, Meraki event logs, SD-WAN troubleshooting dashboards, syslogs, and SNMP traps for in-depth troubleshooting.

Validate routing tables, ACLs, VPN configurations, QoS settings, and firewall policies to ensure they are correctly implemented as intended.

Update network documentation and incident logs with troubleshooting steps, resolutions, and lessons learned.

Recommend upgrades or design changes to minimize common faults or simplify troubleshooting efforts.

Network Architecture: Design and manage Azure Virtual Networks (VNets), subnets, VNet peering, and hub-and-spoke network topologies

Hybrid Connectivity: Configure and support Site-to-Site VPNs, Point-to-Site VPNs, and Azure ExpressRoute circuits

Traffic Management & Load Balancing: Implement Azure Load Balancer, Application Gateway, Azure Front Door, and Traffic Manager

Security & Governance: Set up Network Security Groups (NSGs), Application Security Groups (ASGs), User Defined Routes (UDR), and Azure Firewall

Automation & Infrastructure as Code (IaC): Deploy resources using Terraform, Bicep, ARM templates, or PowerShell/Python scripts

Monitoring & Troubleshooting: Diagnose latency, packet loss, DNS resolution, and connectivity issues using Azure Monitor and Network Watcher

Firewall Management: Policy Management : Build and update access control lists, network address translation (NAT) rules, and security policies Network Defense : Monitor logs and network traffic for suspicious events or security threats Maintenance : Apply software updates, firmware upgrades, and security patches to perimeter devices

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