21 May 2025

Senior Specialist, IP Network Security at MTN Ghana

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Job Description


Position: Senior Specialist, IP Network Security

Level: MTN Level 3

Function: Network Group

Department: IP Networks

Location: Accra

Reports to: Senior Manager, IP Networks

Job Summary:

To lead the design, administration, and operational management of MTN Ghana’s IP network security infrastructure, ensuring end-to-end protection of the network infrastructure and services. The role is pivotal in securing Internet-facing network security platforms and systems, data centre network environment, and the MTN corporate network infrastructure through robust design, risk management, and proactive security operations monitoring.

Job Context

  • Dynamic and highly competitive technology & ICT industry
  • Evolving technology era
  • Multi regulated environment
  • Environmental, social and governance prioritized
  • Regionalization structure implication
  • Multinational environment – Technology Group best practices
  • Continuous Infrastructural expansion
  • Performance driven and agile environment
  • Diverse cultural environment
  • Partnerships

Job Role

Network Security Design & Engineering

Responsible for the design and implementation of the end-to-end IP network security of environments covering:

  • High-Capacity, Perimeter and Data Centre Security firewalls
  • Intrusion Detection/Prevention Systems (IDS/IPS) and Unified Threat Management Systems (UTMS)
  • Anti-DDoS solutions
  • WAF (Web Application Firewalls) and Load Balancers systems
  • Software-Defined Perimeter (SDP) and Zero-Trust Systems
  • Cisco ACI (DC SDN) Solutions and Micro-Segmentation
  • IP Log Management Systems (IPLMS)
  • Security review of solutions and systems to be deployed on the IP network

Security Operations & Administration

  • Manage and monitor day-to-day performance and compliance of network security systems
  • Implement security policies and best practices across IP-Core, IPRAN, Internet gateways, and the MTN corporate network
  • Conduct regular system reviews and IP network security audits
  • Serve as the SPOC for internal, external and regulatory (e.g., ISO 27001, NCA) security audits
  • Escalate network and firewall security incidents as defined in the MTN Information Security Incident Management Processes
  • Ensure the security of the MTN corporate network infrastructure

Risk & Vulnerability Management

  • Work with the relevant stakeholders to identify vulnerabilities and coordinate timely remediation
  • Conduct risk assessments, impact analyses, and root cause reviews
  • Assist to maintain and update network defence playbooks and controls to prevent, detect, and respond to threats
  • Ensure logging and threat intelligence integrations with IP Log Management and SIEM systems
  • IPv6 Security

Design and implement security mechanisms specific to IPv6 environments, including:

  • Filtering and traffic inspection
  • Addressing vulnerabilities unique to IPv6 (e.g., RA flooding, rogue DHCPv6)
  • Secure tunnelling and transition mechanisms (e.g., 6to4, Teredo)
  • End-to-end policy enforcement on dual-stack environments

Vendor & Stakeholder Engagement

  • Build trusted relationships with equipment vendors (Cisco, Huawei, Palo Alto, Fortinet, Appgate, etc.) and solution providers
  • Work with internal and external stakeholders to align to MTN Group security standards
  • Collaborate with other departments (IT, Enterprise Services, Legal, Risk, Customer Experience) on compliance and incident management

Innovation & Security Posture Improvement

  • Monitor global trends, regulatory updates, and emerging threats to continuously improve MTN Ghana’s network security posture
  • Champion initiatives that protect and enhance the security reputation of MTN Ghana’s IP resources in the public and enterprise domain
  • Drive automation of routine operations, vulnerability scanning, and reporting

Education

  • Minimum of a BSc. Computer Science, Telecommunications, Electrical Engineering, or related field
  • Must be Security+, Certified Information Systems Security Professional (CISSP)
  • Preferred Certifications include CCNP Security/CCIE Security, Palo Alto PCNSE, Fortinet NSE4/NSE7, CEH, CISSP, or GIAC (GCIH/GCIA), ITIL/ISO 27001 Lead Implementer (advantageous)

Experience

  • A minimum of six (6) years of hands-on experience in IP networks and security architecture
  • At least 3 years of which must have been at a technology/telecoms company in the IP Network Security field
  • Proven expertise in managing SRv6/MPLS/IP-Core networks, and secure Data Centre environments
  • Strong grasp of IPv6 technologies and associated security frameworks
  • Experience with security operations, audits, and incident management
  • Must also be able to review existing security solution and network designs.

Knowledge

  • In-depth knowledge of TCP/IP, IPv4/IPv6, IP routing (BGP, IS-IS, OSPF), subnetting, NAT, and switching.
  • Hands-on experience with IP network design, including SRv6, MPLS, VRFs, VLANs, and overlay networks.
  • In-depth knowledge of configuration and management of provider-grade firewalls.
  • Proficiency in security solutions design, segmentation, VPNs (IPSec, SSL).
  • An expert in threat and vulnerability assessment, remediation planning and vulnerability lifecycle tracking.
  • Knowledge of network behavior analysis, signature-based detection, anomaly detection, and incident response.
  • Understanding of zero-trust models, threat modeling, and kill chains.
  • Experience with Security Information and Event Management (SIEM) tools.
  • Secure deployment of IPv6 (RA Guard, DHCPv6 filtering, IPsec for IPv6).
  • Security in data center network infrastructure, cloud-native and hybrid environments (e.g., AWS, Azure, GCP).
  • Familiarity with standards such as ISO 27001, NIST CSF, MITRE ATT&CK, and CIS Controls.
  • Project Management skills.

Must live the MTN Values of

  • Lead with Care, Collaborate with Agility, Serve with Respect, Can Do with Integrity, Act with Inclusion, COS

Must exhibit the MTN Vital Behaviors of

  • Complete Candor, Complete Accountability, Active Collaboration & Get it done.


Method of Application

  • Qualified applicants should indicate Vacancy Ref no: MTN-NWGIPSS252 as the email subject and ensure that CVs are saved in their names. Applications without the subject and CVs saved in their names will automatically be disqualified.
  • Interested and qualified applicants should send their Curriculum Vitae by 23rd May 2025 to: [email protected]
  • Only shortlisted applicants will be contacted.




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