Job Description

We at MTN are a purpose and value-led organization. At MTN, we believe that understanding our people’s needs and aspirations is key to creating experiences that delight you at work, everyday. We are committed to fostering an environment where every member of our Y’ello Family is heard, understood and empowered to live an inspired life.

Our values keep us grounded and moving in the right direction. Most importantly, they keep us honest. It is not something we claim to be. It is in our DNA.

As an organisation, we consider it our mission to create an exciting and rewarding place to work, where our people can be themselves, thrive in positivity and ignite their full potential. A workplace that boosts creativity and innovation, improves productivity, and ultimately drives meaningful results. A workplace that is built on relationships and achieving a purpose that is bigger than us.
Our commitments go beyond an organisational promise. It is in our leadership and managerial ethos to meaningfully partner with our employees, customers and stakeholders with a vision to realise our shared goals.

Live Y’ello
- Lead with Care
- Can-do with Integrity
- Collaborate with Agility
- Serve with Respect
- Act with Inclusion

Mission/ Core purpose of the Job

The Senior Manager Information Systems Security Architect’s mission is to architect and govern secure, resilient, compliant enterprise information systems, including ERP, OSS/BSS, enterprise applications, data platforms, and cross-system integrations both on premise and in the cloud.
This role ensures that MTN’s multi-market enterprise application estate, internal platforms, and data and AI environments (including agentic AI) are secured in line with privacy, sovereignty, and enterprise security standards.
IT service architecture review and solution designs are key deliverables in order to assure “security by design” and “security by default” in IT projects

Key Performance Areas: Core, essential responsibilities / outputs of the position (KPA's)
The Senior Manager Information Systems Security Architect is responsible for the following Key Performance Areas:
Enterprise Security Architecture Governance
• Establish secure-by-design principles for ERP, CRM, OSS/BSS, and enterprise application ecosystems both on premise and in the cloud.
• Oversee architecture for middleware, integration layers, internal APIs, and data flows.
Data Security, Sovereignty & Privacy-by-Design
• Architect privacy-by-design solutions across multi-country environments.
• Implement data classification, tokenisation, anonymisation, and confidential compute.
• Ensure cross-border data exchange compliance.
Hybrid & Cloud-Integrated Enterprise Systems
• Govern security of hybrid IT (on-prem + cloud) for enterprise workloads.
• Define secure migration models from legacy to cloud-native systems.
• Promote AI guardrails for all Genova project with impact on digital platforms
Enterprise Identity & Access Governance
• Define enterprise IAM, PAM, SSO, and authentication architectures.
• Define micro-segmentation architectures
• Define governance and guardrails for agentic identities
Multi-Market Standardisation
• Develop reusable enterprise system architecture blueprints across OpCos

Job Requirements (Education, Experience and Competencies)

Minimum Qualifications
• Bachelor’s degree in Computer Science/Information Systems/Engineering (or equivalent).
• Post grad preferred (e.g., MSc, MBA) or equivalent experience.

Experience
• 8–12+ years total IT/security experience; 5-7+ years in security architecture within large, complex enterprises.
• Experience securing large enterprise systems, ERP/CRM/OSS/BSS
• Demonstrable delivery across cloud, API, data/AI, mobile/web apps, Security for AI and AI for security and telco/network environments.
• Experience operating in multi market/Group OpCo models and regulated domains (POPIA/GDPR; PCI/FS for fintech).

Certifications (Preferred)
• Architecture: SABSA, TOGAF.
• Security: CISSP, CCSP, CISM (or equivalent).
• Cloud: Azure/AWS/GCP security certifications.
• DevSecOps/IaC: Kubernetes, Terraform, or equivalent product certs.
• Compliance: ISO 27001 Lead Implementer/Auditor, PCI ISA (if fintech).
• AI: security for AI certifications

Technical Competencies
• Enterprise architecture frameworks
• Data protection technologies (both on premise and in cloud)
• IAM/PAM & identity governance
• Micro-segmentation
• Integration security (APIs, middleware)
• Hybrid IT and Cloud security governance
• Security for AI
• Security incident management
• Project Management

Behavioural Competencies
• Governance orientation
• Analytical problem solving
• Stakeholder influence
• Risk and compliance mindset

Other:
• Regional and international travel may be required