Infrastructure Engineer (Windows & Linux, VMware/Virtuozzo, Proxmox) (JHB Onsite)

ENVIRONMENT

• A South African cloud services provider seeks the technical expertise of an Infrastructure Engineer to fill a hands-on role where you will monitor, maintain, and troubleshoot the systems that keep its infrastructure running.
• You will check VMware, Virtuozzo and Proxmox cluster health, host status, datastore usage, and alerts; support Windows Server and Linux servers; escalate critical backup failures while diagnosing and repairing server and switch hardware faults.
• The ideal candidate must have practical experience across virtualization, backups, networking, and server administration in a live enterprise environment. You also need to be familiar with DNS, routing, firewalls, VPNs & comfortable working in a data center environment, including physical hardware work — rack/stack, cabling, connectors DAC, SFP, fibre, QSFP, and component-level repairs drives, servers, switches.

DUTIES

Daily Operations & Monitoring –

• Check VMware, Virtuozzo and Proxmox cluster health, host status, datastore usage, and alerts.
• Review status and failures across Acronis Cyber Infrastructure, Cohesity, NSX-T, and vCloud.
• Review LogicMonitor / PagerDuty alerts.
• Monitor storage systems for capacity and performance issues.
• Monitor firewalls for alerts, VPN status, and interface health.

Infrastructure Support –

• Provision and manage virtual machines in VMware, Virtuozzo and Proxmox.
• Perform basic troubleshooting on hypervisor hosts and clusters.
• Support Windows Server and Linux servers.
• Assist with network troubleshooting DNS, routing, NIC placement.

​​​​​​​ Backups –

• Monitor Acronis and Cohesity backup jobs and resolve failures.
• Perform test restores files, VMs, full systems.
• Validate backup integrity and report issues.
• Escalate critical backup failures.

​​​​​​​ Network Support –

• Monitor firewalls and security alerts.
• Assist with VPN user troubleshooting IPSec VPN, OA, PAS.
• Verify firewall rules and NAT configurations.
• Check WAN links and resolve basic connectivity issues.

​​​​​​​ Patching & Maintenance –

• Review and apply Windows updates and Linux patches.
• Assist with VMware, Virtuozzo and Proxmox host patching under supervision.
• Perform firmware updates on infrastructure hardware under supervision.
• Execute routine maintenance reboots, cleanup tasks.

​​​​​​​ Hardware & Physical Infrastructure –

• Install, configure, and maintain HCI nodes.
• Work with networking cabling and connectors, including DAC cables, SFP, fibre, and QSFP transceivers.
• Diagnose and repair server and switch hardware faults.
• Replace failed drives and other hardware components.
• Support rack/stack, cabling, and physical hardware installations.

​​​​​​​ Incident Response –

• Handle escalations from the VPS team.
• Troubleshoot VM performance issues.
• Investigate backup failures and storage alerts.
• Escalate to Senior Engineers with proper diagnostics when required.

​​​​​​​ Project Assistance –

• Assist with VM migrations VMware/Proxmox/Virtuozzo.
• Support infrastructure deployments and upgrades.
• Help with rack/stack, cabling, and initial hardware configuration.

REQUIREMENTS

• Some hands-on exposure to VMware/Virtuozzo, Proxmox, or similar virtualization platforms.
• Good understanding of Windows Server and Linux administration.
• Familiarity with networking fundamentals DNS, routing, firewalls, VPNs.
• Comfortable working in a data center environment, including physical hardware work — rack/stack, cabling, connectors DAC, SFP, fibre, QSFP, and component-level repairs drives, servers, switches.

​​​​​​​ Advantageous –

• Exposure to backup/DR concepts and tools Acronis, Cohesity, or similar.

ATTRIBUTES

• Strong troubleshooting mindset and willingness to learn.
• Good documentation habits and clear communication skills.