Infrastructure and Network Manager
Sandton, GP, ZA, 2191

The Infrastructure and Network Manager will be responsible for the end-to-end ownership of the organization's infrastructure and network environments, which are delivered through a network of outsourced service providers. This includes ensuring the delivery, performance, observability, and cost-effectiveness of critical infrastructure and network services across multiple countries, time zones, and regulatory jurisdictions. This strategic leadership role plays a vital part in supporting hybrid and multi-cloud provisioning, ensuring robust WAN, SD-WAN, and NaaS services, and aligning infrastructure capabilities with business operations and growth. The successful candidate must also be willing to get their hands dirty and perform hands-on technical work when the situation demands it.
Roles and Responsibilities
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- Oversee the design, provisioning, and lifecycle management of hybrid (on-prem/cloud) infrastructure and platforms.
- Ensure infrastructure is right-sized, secure, and scalable to meet business demand.
- Own the performance and availability of the organization’s global WAN, SD-WAN, and NaaS environments.
- Drive continuous optimization of network topologies and architectures across regions. Proactively follow up with suppliers and finance teams to resolve payment issues.
- Plan capacity upgrades and failover strategies to achieve minimal downtime.
- Continuously monitor link utilization, packet loss and latency; fine-tune configurations to eliminate bottlenecks.
- Build, negotiate, and manage SLAs with outsourced providers.
- Serve as the primary point of accountability for third-party infrastructure and network services.
- Establish and enforce performance metrics, KPIs, and service quality standards.
- Implement observability frameworks for proactive detection, monitoring, and reporting across infrastructure and networks.
- Ensure high availability and fault tolerance of infrastructure supporting business operations.
- Define and oversee robust asset and configuration management practices.
- Ensure accurate inventory tracking and configuration control for infrastructure assets.
- Monitor and control infrastructure and network spend.
- Drive efficiency and cost transparency through FinOps-aligned practices.
- Ensure infrastructure and network compliance with local and international regulatory requirements (ISO 27001, NIST).
- Lead risk identification and mitigation efforts across jurisdictions.
- Maintain network diagrams, configuration baselines and runbooks.
- Define VLANs, routing protocols (OSPF, BGP), QoS policies and IP addressing schemes.
- Implement firewalls (stateful, NGFW), intrusion detection/prevention (IDS/IPS) and zero‐trust segmentation.
Qualifications & Experience
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- Bachelor’s Degree – A degree in Computer Science, Information Technology, Engineering or any related field.
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- 10+ years of experience in infrastructure and network management, with at least 5 years in a leadership or multi-country role.
- Proven experience managing hybrid infrastructure and multi-cloud environments (e.g., AWS, Azure, Google).
- Deep knowledge of server infrastructure, virtualization (VMware, Hyper-V), and storage systems.
- Strong expertise in WAN, SD-WAN, and wireless and LAN models.
- Strong grasp of Routing/switching, VPN/IPSec/MPLS, and DNS/DHCP/NTP fundamentals
- Experience managing outsourced IT service providers and enforcing SLAs.
- Solid background in observability tools (e.g., Datadog, ThousandEyes, Dynatrace, etc.) and asset/configuration management (e.g., CMDB, ITAM).
- Skilled in implementing and interpreting telemetry, alerts, and dashboards.
- Demonstrated ability to manage across global time zones and jurisdictions.
- Familiarity with ITIL, ISO 27001, and network/infrastructure compliance standards.
Key Competencies
- Strategic thinking and ability to align technology with business objectives.
- Strong vendor management and contract negotiation skills.
- Excellent communication and stakeholder engagement abilities.
- High level of analytical and problem-solving skills.
- Resilience, accountability, and decision-making under pressure.
- Ability to lead technical teams and influence non-technical stakeholders.
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