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

SUMMARY:
-

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.