Network Administrator

JOB DESCRIPTION

Reporting to the Manager – IT Networks the position holder will Provide technical expertise, design and support to Safaricom in the field of Call Center, local and wide area network administration.

RESPONSIBILITIES

• Advises on the communications requirements of installed and planned networked information systems. 
• Carries out surveys to establish network connection requirements. 
• Maintain system standards and procedures on network related issues and technically enforce the same.
• Working with the Digital Engineering team on providing various cloud solutions and integrations. 
• Implementation, Configuration and support of the Safaricom voice platforms including the contact center and cisco call manger. 
• Monitors, administers and maintains network security, countermeasures for availability and safety
• Liaise with other departments to deliver cross team projects and harmonized IT operations in SFC. 
• Provide input, expertise in projects that require IT Network infrastructure for expanding business areas to support retail outlets. Switch rooms and  new products and services
• Uses network management tools to investigate, diagnose and resolve network problems within service level agreement tolerances, referring to network users, other staff, and suppliers as necessary. 
• Respond to support issues and connectivity incidents for Safaricom’s Corporate LANs, troubleshooting and IP Addressing and connectivity across the company.
• Implements and administers the SFC internet connection, mail gateways and security.
• Response to support calls on data, telephone support and call center issues as backup for Telephone Services Team Leader.
• Documentation of network, network design hardware and software inventory.

QUALIFICATIONS

• Experience with different cloud provider technologies including Amazon Web Services, Microsoft Azure. 
• A solid background in Linux/Unix and Windows server system administration
• Understanding of cloud infrastructure and security requirements
• Deep Knowledge of Voice Systems – call Manager, Genesys 
• Knowledge and integration of SIP and PSTN.
• Managing, Configuring and Troubleshooting CISO Security Integrated Services Engine (ISE) 
• Managing configuring and Troubleshooting CISCO Security Intrusion Prevention Systems (IPS) 
• Managing, Configuring and Troubleshooting Checkpoint Firewalls, Cisco Firewalls and Web Authentication Firewalls. 
• Formal professional training or work experience in networking and communication technologies. Knowledge of a networking environment
• Knowledge of Cisco IOS and proficiency in a wide range of networking LAN/WAN products and technologies
• Experience with firewalls, Internet VPN’s remote implementation, troubleshooting, and problem resolution is desired
• Monitor network performance (availability, utilization, throughput, goodput, and latency) and test for weaknesses
• Knowledge of basic network architecture concepts (zones/DMZ, VLANs, segmentation, subnetting. LAN/WAN).
• Basic understanding of dynamic routing protocols a plus.
• Good working knowledge of basic firewall configuration concepts (ACL, NAT/PAT, routing statements, ports, protocols, VPNs
• General exposure to firewalls, switches, routers, and other networking devices.
• Knowledge of cisco Voice systems including cisco call manager, Webex