Job Description

We are seeking an experienced Network LAN Engineer to design, implement, maintain, and troubleshoot enterprise LAN infrastructure. The ideal candidate will have strong hands-on experience with switching, routing, network protocols, and network security, along with the ability to troubleshoot complex network issues in a production environment.

Key Responsibilities

• Design, configure, implement, and maintain LAN/WAN network infrastructure.
• Configure and troubleshoot Cisco switches and routers.
• Manage VLANs, STP, EtherChannel, trunking, and inter-VLAN routing.
• Work with TCP/IP, DHCP, DNS, ARP, and ICMP protocols.
• Troubleshoot network connectivity, performance, and availability issues.
• Implement and maintain Layer 2 and Layer 3 networking solutions.
• Support network upgrades, migrations, and infrastructure expansion.
• Monitor network performance and identify potential issues proactively.
• Work with firewalls, VPNs, NAC, and network security controls.
• Perform network configuration, incident resolution, and root cause analysis.
• Maintain network documentation, diagrams, configurations, and operational procedures.
• Collaborate with infrastructure, security, systems, and application teams.
• Participate in network maintenance, change management, and disaster recovery activities.
• Support enterprise network automation and configuration management where applicable.

Must-Have Skills

• Strong experience with LAN/WAN networking.
• Hands-on experience with Cisco networking technologies.
• Strong knowledge of Cisco Catalyst switches.
• Experience with VLAN, STP, RSTP, MSTP, EtherChannel, and trunking.
• Strong understanding of TCP/IP and OSI models.
• Experience with routing protocols such as OSPF and BGP.
• Knowledge of DHCP, DNS, ARP, and IP addressing/subnetting.
• Strong network troubleshooting and root cause analysis skills.
• Experience with network monitoring and troubleshooting tools.
• Knowledge of network security, firewalls, VPN, and NAC.
• Experience with network documentation and change management.

Good to Have

• Cisco CCNA/CCNP certification.
• Experience with Cisco DNA Center / SD-Access.
• Knowledge of SD-WAN.
• Experience with Python or Ansible for network automation.
• Knowledge of cloud networking — AWS/Azure/GCP.
• Experience with wireless LAN (WLAN) technologies.
• Familiarity with ITIL and enterprise network operations.