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Job Summary

Ensure the provision of optimal user support on all IT network infrastructure within CUSTOMER Network.

  • Minimum Qualification: Bachelor
  • Experience Level: Mid level
  • Experience Length: 3 years

Job Description


Reports to: Back Office Manager

Grade Level:

Supervises: Network Security Team lead


Job Summary

• Ensure the provision of optimal user support on all IT network infrastructure within CUSTOMER Network.

• Assist in implementing defined work programs and plans in the area of IT security.


ROLES AND RESPONSIBILITIES

• Performing analysis of network security needs and contributes to design, integration, and installation of new hardware and software Firewalls, routers, switches, load balancers, Proxy servers and Antivirus tools.

• Modifies and maintains network security policies as per MTN GISP.

• Implementation and administration of IP load balancing with F5 Big/IP, hardware SSL accelerators, and other software/hardware as necessary.

• Design and implementation of remote connectivity solutions including IPSec VPN, PPTP, and SSLVPN

• Monitoring security system logs (i.e. intrusion detection system, firewall system logs, etc.) and reports on discovered anomalies or problems (i.e. insufficient disk space, inappropriate access patterns) on a weekly basis.

• Testing new Network and security hardware and software solutions prior to implementation.

• Use of approved network tools to troubleshoot and isolate network problems.

• Keep fully abreast of trends and changing technologies as they relate to IT and Network Engineering and Information Security fields. Engages in continuous process improvement.

• Analyzing, troubleshooting and correcting network problems remotely and on-site.

• Maintaining and administering perimeter security systems such as firewalls and intrusion detection systems.

• Assist in performing risk assessments and security scans on CUSTOMER’s information systems.

• Notify appropriate user groups on vulnerabilities within their systems and recommend options for resolving or mitigating the vulnerabilities.

• Identify and investigate anomalous log entries and possible implications on security, integrity and performance of CUSTOMER’s IT infrastructure. Escalate recommendations to the Manager, IT Architecture and Security.

• Prepare periodic security/risk assessment report and circulate to all relevant stakeholders.

• Liaise with relevant unit/ team/function in carrying out all relevant activities.

• Attend team/divisional/departmental meetings as required.

• Assist in providing technical support to end users of CUSTOMER’s IT network infrastructure organization-wide.

• Assist in ensuring the prompt resolution of escalated faults and requests from the call centre and helpdesk. Act as second level of support for escalated issues.

• Maintain relationships with third-party vendors and ensure that agreed SLAs are achieved.

• Assist in setting up and maintaining network management system tools to ensure network devices are constantly monitored.

• Assist in setting up and executing technical test plans for device modification, new deployment and upgrades.

• Assist in monitoring and troubleshooting network infrastructure (LAN, WAN, routers, cabling, etc) related issues and requests down to the last line of support before escalating to third-party vendors.

• Maintain an accurate and up-to-date record of escalated issues and resolution status (i.e. a detailed maintenance schedule).

• Monitor infrastructure performance and recommend adjustments to ensure optimal response time to the Manager, Network Infrastructure Support.

• Liaise with the help desk to ensure infrastructure related incidents are resolved efficiently and in a timely manner in compliance with Service Level Agreements.

• Liaise with relevant unit/ team/function in carrying out all relevant activities.

• Attend team/divisional/departmental meetings as required.

• Provide guidance and manage the performance of subordinates (where applicable).

• Prepare/compile agreed periodic activity and performance reports for the attention of the Manager, Network Infrastructure Support.

• Perform any other duties as assigned by the Manager, Network Infrastructure Support.



EDUCATION AND EXPERIENCE

• First degree or equivalent in a relevant discipline.

• Network and Security Certifications shall be of an added advantage

• Minimum of three (3) years relevant work experience.


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