Senior-Level Network & Data Centre Support Engineer

Dante Personnel Recruitment (Pty) Ltd; Gauteng; On-site; ZAR 850,000 - 1,250,000; Full time

Job summary

... (Company: Dante Personnel Recruitment (Pty) Ltd) Senior Network & Data Centre Support Engineer position based in Centurion, Gauteng.

You will own critical client environments, manage data centre operations, high-availability cloud setups, and serve as the tier-3 escalation point for complex technical challenges. You will lead SOPs under ITIL, mentor junior engineers, and drive improvements across Windows Server, virtualization, networking, and security domains leveraging FortiGate, M365,

Qualifications

• 7+ years of experience with enterprise IT infrastructure and Windows Server.
• 5+ years hands-on enterprise networking experience.
• Proven FortiGate firewall expertise is mandatory.
• Strong knowledge of Microsoft 365, Azure AD, Exchange, Mimecast, TCP/IP, DNS and DHCP.
• Demonstrated leadership, root-cause analysis, and process ownership.
• Certs in Fortinet, CCNA/CCNP, MCSE or ITIL are advantageous.

Responsibilities

• Architect, administer, and maintain Windows Server environments, virtual infra, backups, and DR.
• Oversee full-stack network infra: routing, switching, VLANs, site-to-site VPNs, wireless.
• Manage FortiGate firewalls: policy config, security audits, fault diagnosis.
• Lead directory and security management across M365, Azure AD/Entra ID, Exchange, Mimecast.
• Provide senior escalation support and implement SOPs under ITIL; mentor junior staff.

Skills

Windows Server

Virtualization

Backups & DR

Networking

FortiGate expertise

Microsoft 365 & Azure

ITIL & SOPs

Leadership

Tools

FortiGate

Microsoft 365

Azure AD

Exchange

Mimecast

TCP/IP

DNS

DHCP

Job description

An established, industry-leading IT and Telecommunications Managed Services Provider in Centurion is seeking an experienced Senior Network & Data Centre Support Engineer to take key ownership of critical client environments and infrastructure.

This position is tailored for a seasoned IT professional seeking a high-impact, technical leadership role. You will oversee data centre operations, high-availability cloud setups, complex network environments, and serve as the tier-3 escalation expert for complex technical challenges.

Key Responsibilities

• Architect, administer, and maintain enterprise Windows Server environments, virtual infrastructure, backups, and disaster recovery solutions.
• Oversee full-stack network infrastructure, including routing, switching, VLAN segmentation, site-to-site VPNs, and wireless networking.
• Manage FortiGate firewalls, performing advanced policy configuration, security audits, and fault diagnosis.
• Lead directory and security management across Microsoft 365, Azure AD / Entra ID, Exchange, and Mimecast environments.
• Perform high-level vulnerability remediation, server patching, SSL deployment, and basic SQL Server support.
• Serve as the senior technical escalation point, implementing Standard Operating Procedures (SOPs) under ITIL best practices and mentoring junior engineering staff.

Minimum Requirements

• 7+ years' experience supporting enterprise IT infrastructure and Windows Server environments.
• 5+ years' hands-on enterprise networking experience.
• Non-negotiable: Proven, in-depth expertise with FortiGate firewalls.
• Advanced knowledge of Microsoft 365, Azure AD, Exchange, Mimecast, TCP/IP, DNS, and DHCP.
• Strong technical leadership, root-cause analytical skills, and process ownership.
• Relevant certifications are highly advantageous (Fortinet FCP/NSE, CCNA/CCNP, MCSE, ITIL).