Engineer - Data Centre Support at MTN Nigeria

MTN Nigeria is part of the MTN Group, Africa\'s leading cellular telecommunications company. On May 16, 2001, MTN became the first GSM network to make a call following the globally lauded Nigerian GSM auction conducted by the Nigerian Communications Commission earlier in the year. Thereafter the company launched full commercial operations beginning with Lagos, Abuja and Port Harcourt. MTN paid $285m for one of four GSM licenses in Nigeria in January 2001. To date, in excess of US$1.8 billion has been invested building mobile telecommunications infrastructure in Nigeria. Since launch in August 2001, MTN has steadily deployed its services across Nigeria. It now provides services in 223 cities and towns, more than 10,000 villages and communities and a growing number of highways across the country, spanning the 36 states of the Nigeria and the Federal Capital Territory, Abuja. Many of these villages and communities are being connected to the world of telecommunications for the first time ever. The company\'s digital microwave transmission backbone, the 3,400 Kilometre Y\'elloBahn was commissioned by President Olusegun Obasanjo in January 2003 and is reputed to be the most extensive digital microwave transmission infrastructure in all of Africa. The Y\'elloBahn has significantly helped to enhance call quality on MTN network.

Reports To: Manager - DataComm Support

Division: Network

Mission:

• Manages the implementation and support of MTNN IP/MPLS network
• Implements and supports Unified Communication Solutions for integrated voice, video and data across various design models including Single, Distributed, and Survivable Remote Sites, multi-vendor platforms including routing, switching, security and wireless technologies
• Drive and ensure resolution of Internet related escalated issues within SLA, Local Area Network (LAN) and Wide Area Network (WAN) operation. 
• Ensure degradations on the internet edge network are picked within SLA and troubleshoot with the respective Managed Services Vendors, Partners and internal teams for fix 
• Support and traffic engineering for Internet Cache services (FB, Google) and exchange point (IXPN), Data Centre Networks utilizing Cisco Application Centric Infrastructure (ACI), including Application Delivery Controllers

Description:

• Identifying issues to prevent expensive outages or unnecessary capacity upgrades.
• Identify and resolve issues on problematic platforms or highlight recurring technical problems
• Improves customer satisfaction in reliability, availability, and cost of network service related to VoIP/IP-PBX
• Responsible for technical specification evaluations, recommendations, and network designs for the enterprise’s VoIP networks
• Network devices according to the maintenance schedule or in response to incidents
• Configure network tools to provide up-to-date operational and performance status of managed networks and devices
• Ensure that vendor best practice reports (e.g., Cisco, F5, Huawei) are implemented
• Proactively analyze network and NMS alarms to identify and resolve potential issues
• Coordinate strategies for defining, deploying, and maintaining MTNN in-house IP telephony voice communication architecture
• Maintain current and thorough knowledge of Cisco technologies, with emphasis on Unified Communications
• Provide support to Planning and Implementation teams on projects related to VoIP infrastructure and technologies
• Organize and lead scheduled testing that verifies security and failover mechanisms on MTNN operational network nodes & services
• Understanding to create Acceptance test plans and execute them with field support team
• Maintain current and thorough knowledge of Cisco technologies, with emphasis on Unified Communications

Education:

• First degree in Computer Science/Engineering or Electrical or Electrical Electronics/Engineering
• Cisco Certifications
• Script writing /Training

Experience:

3-7 years’ experience which includes

• Minimum of Four (4) Years of GSM/WCDMA/4G LTE-TDD & FDD/5G Telecoms Experience
• Broad experience handling a variety of monitoring tools, executive dashboard reporting and data analysis
• Requires an in-depth understanding of IP/MPLS, Routing and Switching (R&S) over varied platform such as Nexus, IOS, IOS-XR, Nokia, Huawei Technology, Enterprise wireless – 802.11g/n/ac
• A minimum of Five (5) years of experience supporting and monitoring network systems in telecommunication company, configuring Routers, Catalyst switches, Load Balancer, Firewall, Security, Internet Connection, Datacenter
• Experience in Cisco Application Centric Infrastructure (ACI) - Configuration, Troubleshooting, Automation, Orchestration, ACI fabric, spine, and leaf, Knowledge of fabric discovery, fabric setup, and creating application profiles and end-point groups (EPGs) nodes, as well as policy-based communication across the fabric
• Good knowledge of L2VPN, L3VPN, BGP (M-BGP & I-BGP), IP Security, & Tunnelling 
• Experience in support of a multi-vendor Mobile Data Network and Enterprise environment.
• Networking Fundamentals: A strong understanding of networking concepts, including TCP/IP, routing protocols (BGP, OSPF, RIP), and switching.
• IP Routing Protocols: Expertise in configuring and troubleshooting BGP, OSPF, and RIP protocols to manage IP routing within the network.
• MPLS Fundamentals: Knowledge of MPLS concepts, including label distribution protocols (LDP, RSVP-TE), TE tunnels, and traffic engineering.
• Multicast Routing: Understanding of multicast routing protocols (IGMP, PIM) and their role in distributing data to multiple recipients.
• QoS: Knowledge of QoS mechanisms (prioritization, shaping, policing) to manage traffic flow and ensure quality of service.
• VPN Technologies: Familiarity with VPN technologies (IPsec, GRE, MPLS-VPN) to secure and isolate network traffic.
• Network Automation: Experience with network automation tools (Ansible, Puppet, Chef) to streamline network management tasks.

Method of Application