Network Support Engineer L1

Port Security

• Hands-on exposure to Cisco and D-Link switches

Routing

• Static Routing
• Dynamic Routing (basic understanding OSPF/BGP awareness preferred)
• Hands-on exposure to Cisco and D-Link routers
• Understanding of ISP link redundancy and failover concepts

Network Services & Protocols

• DHCP configuration and troubleshooting
• DNS basic understanding
• TFTP for configuration and image transfer
• SSH and Telnet for device management
• SNMP configuration and monitoring

Security & Firewall (Recommended)

• Basic ACL configuration in switching and routing environments.
• AAA concepts:
• RADIUS
• TACACS+
• Firewall knowledge (recommended):
• Sophos Firewall
• Basic understanding of:
• Firewall policies
• NAT
• VPN concepts
• Basic understanding of network automation concepts.
• Exposure to scripting or tools for:
• Configuration backup
• Monitoring automation
• Willingness to learn automation frameworks
• Understanding of:
• ILL, MPLS, and Internet links
• Redundant links and high availability
• Rack, stack, and cabling basics
• Awareness of data center operational practices
• Experience working in 24x7 shift-based NOC operations

Certifications (Preferably)

• CCNA (Cisco Certified Network Associate)
• JNCIA or equivalent networking certification
• Firewall certification (Sophos or equivalent)
• ITIL Foundation (added advantage)Key Responsibilities
• Monitor ISP, backbone, and data center networks using NOC monitoring tools
• Handle alerts, incidents, and service requests via ticketing systems
• Perform initial troubleshooting of Layer 2 and basic Layer 3 issues
• Escalate issues to L2/L3 teams as per defined escalation matrix
• Coordinate with ISPs, ILL providers, and vendors for link-related issues
• Track SLA, uptime, MTTR, and ensure timely resolution of incidents
• Prepare and maintain:
• Root Cause Analysis (RCA)
• Network outage and incident reports
• Daily/weekly NOC reports
• Follow change management procedures during configuration and maintenance activities
• Support firmware/IOS upgrades and scheduled maintenance windows
• Maintain configuration backups and assist in restoration during failures
• Ensure adherence to NOC operational processes and best practices

Technical Skills Required:

• Experience with NOC/Network Monitoring tools:
• NIMS
• SNMP
• NetFlow
• Alert handling, threshold monitoring, and dashboard analysis
• Basic packet analysis using Wireshark

Switching (Strong Knowledge)

• VLANs, Trunking (802.1Q), and Access Ports
• Spanning Tree Protocol (STP)
• EtherChannel
• CDP / LLDPR