Network Engineer

Job Description :

Ø Troubleshoot / Diagnose all Level 1 issues from the customers and driving satisfactory resolution of the issues.

Ø Troubleshoot Product, Codes and Configuration issues

Ø Ensure consistent customer satisfaction

Ø Document all communication with customers in the CRM

Ø Interface with international customers

Ø Timely handoff (escalation) of cases that require technical or political to L2 / L3 TAC

Primary Skills :

Ø OSI layers – detailed understanding of each layer’s function and relevant protocols that operates at each level

Ø TCP / IP – thorough understanding and clear explanation about windowing / handshake mechanism

Ø MAC header structure and use of each fields

Ø IP header structure and use of each fields

Ø ARP – how ARP works in a Layer 2 and Layer 3 communication

Ø Mac address table fields and how a switch uses MAC table for switching decisions

Ø ARP table and how a switch uses ARP table

Ø Routing Table fields and how a Router uses routing table for routing decisions

Ø DHCP protocol messages (clear understanding of DORA process)

Ø DHCP operation in layer 2 and layer 3 scenarios (server & client in same vlan or different VLAN)

Ø thorough understanding of Broadcast domain and Collision Domain

Ø thorough understanding of Unicast, Multicast and Broadcast traffic

Ø thorough understanding of Subnetting, Vlan, VTP, 802.1q, STP, Linkage

Ø thorough understanding of RIP (version 1 and 2) and OSPF (link states, LSA types, area types, router types, neighbor communication)

Ø Difference between Routing and Routed protocols

Ø Good troubleshooting approach (from Level 1 to 7 of OSI)