Network Security Engineer Job Vacancy Telecommunications & Network Security

Position:
Network Security Engineer

Company: MTN Group

Location:

Durban, South Africa

Experience:

5+ years of experience in network security, preferably in telecom environment

Education:

Bachelor’s degree in Computer Science, Information Security, or related field

Employment Type:

Full-time

Industry: Telecommunications & Network Security

Department:
Network Operations & Security

Salary: R450,000 – R650,000 per annum

Vacancies: 1

MTN Group is a leading multinational telecommunications provider operating across Africa and the Middle East. With a strong commitment to innovation, connectivity, and digital inclusion, MTN delivers mobile, broadband, and enterprise solutions to millions of customers. As a major employer in South Africa, MTN offers dynamic career pathways, robust training programs, and a culture that values diversity, sustainability, and community impact.

Joining MTN means contributing to a future‑focused organization that drives economic growth and digital transformation across the continent, making it an attractive destination for professionals seeking rewarding South Africa Jobs.

The Network Security Engineer will play a pivotal role in safeguarding MTN’s extensive telecommunications infrastructure against evolving cyber threats. This position involves designing, implementing, and managing security controls for core network elements, ensuring compliance with industry standards, and collaborating with cross‑functional teams to maintain a resilient and secure environment. The role supports MTN’s strategic objectives of delivering reliable, secure services to customers while upholding the highest standards of data protection and network integrity.

For more information about MTN’s career opportunities, visit the main website  Additional resources and regional insights can be found at

• Design, configure, and maintain firewalls, intrusion detection/prevention systems, and VPN solutions for the core network.
• Conduct regular vulnerability assessments, penetration testing, and risk analysis to identify and remediate security gaps.
• Monitor network traffic using SIEM tools, respond to security incidents, and lead forensic investigations.
• Develop and enforce security policies, standards, and procedures aligned with regulatory requirements.
• Collaborate with network engineers, architects, and operations teams to integrate security controls into new deployments.
• Provide technical guidance and mentorship to junior security staff and cross‑functional teams.
• Prepare detailed security reports, metrics, and dashboards for senior management.
• Stay current with emerging threats, industry best practices, and evolving telecommunications security standards.

• Strong knowledge of network protocols (TCP/IP, MPLS, BGP, OSPF) and telecom equipment.
• Hands‑on experience with firewalls (e.g., Palo Alto, Fortinet), IDS/IPS, and VPN technologies.
• Proficiency in security monitoring tools such as Splunk, QRadar, or Arc Sight.
• Understanding of ISO 27001, NIST, and ITU security frameworks.
• Ability to perform incident response, root‑cause analysis, and remediation planning.
• Excellent problem‑solving, analytical, and communication skills.
• Certification such as CISSP, CCNP Security, or GICSP is highly desirable.
• Experience working in a large‑scale telecom environment is a strong advantage.

A bachelor’s degree in Computer Science, Information Security, Telecommunications Engineering, or a related discipline is required. Advanced degrees or specialized certifications will be considered an asset and may enhance candidacy for this role.

Applicants should have a minimum of five years of professional experience in network security, with a proven track record of protecting complex telecommunications infrastructures. Experience in designing security architectures for carrier‑grade networks is essential.

The competitive remuneration package ranges from R450,000 to R650,000 per annum, reflecting the candidate’s expertise, qualifications, and market benchmarks for senior security roles in South Africa.

• Comprehensive medical and dental coverage.
• Retirement savings plan…