Network Infrastructure Specialist

1 month ago


Mumbai, Maharashtra, India Larsen & Toubro Full time

Key Responsibilities:

Larsen & Toubro seeks a highly skilled Network Solution Architect to spearhead the design and implementation of Layer 2/3 technologies, including VLANs and segmentation.

  • Collaborate with internal teams and vendors to ensure seamless network operations.
  • Monitor network appliances and firewalls, performing health checks, and reporting issues.
  • Configure and manage data or voice circuits, including SD-WAN, MPLS, Internet, and SIP.
  • Manage routing tables and IP addresses, utilizing BGP and OSPF.
  • Oversee network security infrastructure, including firewalls, proxies, web filters, ACLs, and network access control.
  • Troubleshoot network performance issues and remotely restart components after outages.
  • Manage firewall policies on Cisco ASA, Palo Altos, and Site-to-Site VPN and ACLs.
  • Address routing and switching issues, perform WAN/LAN troubleshooting, and conduct VLAN/Port MACD.
  • Upgrade network appliance and firewall firmware/software and coordinate vendor dispatch management.
  • Configure and manage F5 or similar load balancers, perform connectivity and link consistency tests, and diagnose network hardware issues.
  • Analyze network traffic as needed, optimize routing and switching, and manage bandwidth and wireless network optimization.
  • Decommission and shutdown activities, and possess the ability to monitor network appliance CPU and memory, and interface utilization issues.

Desirable Qualifications:

BE/B-Tech or equivalent in Computer Science/Information Technology or Electronics & Communication, with certifications like CCNA/CCNP/CCIE/CCDP.

10-15 years of relevant experience, with specialized skills in Data Center/remote/cloud routing and extensive network architect and design experience.

Required skills include Firewall, Cisco Routers & Switches, Meraki, and Fortinet, SDA and SWAN, deploying Cisco/Fortinet/Palo Alto/Juniper, Nexus Switches, and Routers.

High-level experience in transforming networks, a mindset to automate deployment, and customer-facing roles with the ability to drive workshops and delegate tasks to drive results.



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