Sabenza IT

Senior IT Infrastructure Engineer

Sabenza IT

full-time

Posted on:

Location Type: Office

Location: Johannesburg • South Africa

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Job Level

Senior

Tech Stack

AzureCloudDNSITSMLinuxMS SQL ServerSQLVoIP

About the role

  • Deploy, configure, and maintain Windows and Linux servers on-premises and in Microsoft Azure
  • Manage HP Synergy blade servers and associated storage technologies
  • Administer Hyper-V clusters and failover configurations for MS SQL Server
  • Perform patching, firmware updates, and server upgrades
  • Monitor system performance and proactively resolve issues to ensure high availability
  • Configure and maintain HP/Aruba network switches and LAN/WAN/VPN connectivity
  • Support network segmentation and perimeter security
  • Manage Azure Virtual Networks (VNets) and Network Security Groups (NSGs)
  • Troubleshoot and optimize hybrid network routing and connectivity
  • Integrate on-prem infrastructure with cloud via VPN and ExpressRoute
  • Administer IP telephony and VoIP systems; integrate with Microsoft Teams
  • Provide hardware/software support and maintain telephony documentation
  • Support Azure services, including Azure AD, DNS, Microsoft 365, SharePoint Online, and Remote Desktop Services
  • Assist in cloud migration and optimization initiatives
  • Implement and manage VEEAM backup and disaster recovery solutions
  • Conduct regular backup validation and lead disaster recovery testing
  • Provide 2nd and 3rd level support for infrastructure incidents
  • Participate in standby and after-hours support
  • Document root cause analyses and contribute to continuous service improvement
  • Maintain SOPs, topology diagrams, and configuration logs
  • Report system health, capacity, and risk posture to management
  • Work with IT Infrastructure Manager and engineers to align with IT strategy
  • Mentor junior engineers and support knowledge sharing

Requirements

  • Diploma/Degree in Information Technology or related fields
  • Minimum 5 years’ experience in IT infrastructure engineering
  • Strong knowledge of Windows/Linux server administration, virtualization, and networking
  • Experience with HP Servers, Switches, Hyper-V, Microsoft SQL Server, and Azure technologies
  • Familiarity with ITSM practices (Incident, Problem, Change Management)
  • Proficiency in technical documentation and system architecture
  • Networking fundamentals and Administration
  • Documentation/Technical Authoring Knowledge of Systems Architecture
  • ITIL certification advantageous
  • HP Networking Certifications Network Professional (ACNP)) will be advantageous
  • Microsoft Certifications (e.g., AZ-104, AZ-305) will be advantageous
  • Linux Certifications (e.g., LPIC-1, RHCSA) will be advantageous
  • Cisco CCNA or CCNP (as complementary networking knowledge) will be advantageous
Benefits
  • Professional development opportunities
  • Paid time off
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
Windows server administrationLinux server administrationVirtualizationNetworkingHP Synergy blade serversHyper-VMicrosoft SQL ServerAzureVoIP systemsBackup and disaster recovery
Soft Skills
Problem solvingDocumentationMentoringKnowledge sharingContinuous service improvement
Certifications
ITILHP Networking Certifications Network Professional (ACNP)Microsoft AZ-104Microsoft AZ-305Linux LPIC-1Linux RHCSACisco CCNACisco CCNP