The Network Administrator is also responsible for overseeing the organization's networks to ensure proper maintenance and security. Their duties include working with other IT staff and company employees to identify network or computer system needs, overseeing the installation of new hardware or software and using employee feedback to isolate issues. This includes planning, developing, installing, configuring, maintaining, supporting, and optimizing all network hardware, software, and communication links. The job duties will also involve creating or updating security infrastructure and continually monitoring networks for unauthorized access or suspicious activities.
Job Responsibilities
Scheduling and executing Preventive Maintenance of the Network Infrastructure
Ensure 99.99% availability of the Network Infrastructure
Serve as a Level 1 escalation for all Network incidents
Serve as part of Resolution Team for Network Incidents
Ensure Network documentation is updated
Manage Network Inventory and spares
Manage Configuration of all Network equipment (backup configuration and application of standardized configuration templates to Network equipment)
Liaise with Service Providers to ensure agreed SLAs are maintained 100%
Continuous training to keep abreast with Network technologies
Liaise with the ITSM/Service Delivery manager to manage projects and IT&S processes and procedures.
Ensure Network licenses are valid and initiate acquisition of the same before expiry
Job Requirements
Understanding of TCP/IP networking, IP routing and core technologies such as IP, TCP, OSPF, BGP, Switching.
Experience in Cisco Nexus switches, Juniper QFX, High Performance Routers (Cisco ASR1k etc), Advanced BGP configuration, Firewall hardening with Cisco Firepower and Checkpoint firewalls, Cisco ISE (Network Access Control) and Traffic Engineering.
Deep working knowledge of Site-to-Site IPSec & Remote Access VPNs (IKEv1 & IKEv2)
Deep working knowledge of Checkpoint and FortiGate Firewalls (Administration and Troubleshooting)
Advanced Switching knowhow – VLANS, STP, VTPv2, VTPv3, VTP pruning, Configure and verify Ether Channels, Configure and verify spanning tree, chassis virtualization and aggregation technologies
Configure and verify security features, device security using AAA with TACACS+ and RADIUS and with MFA
Telco / Service Provider experience is an advantage
8+ years' experience managing a large Network of at least 50 nodes
Strong troubleshooting skills is key
Ability to work with cross-functional teams to deliver projects and IT services
Must be time flexible
Mandatory Requirements:
Degree in Computer Science or related degree
Cisco CCNP Enterprise certification
Check Point CCSA/CCSE Certification
Fortinet NSE 4 Enterprise Firewall
Juniper JNCIA certification
Any other network vendor certification will be an added advantage.