Infrastructure Engineer (Windows & Linux, VMware/Virtuozzo, Proxmox) (JHB Onsite)
SUMMARY:
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POSITION INFO:
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.