Sabenza IT

Senior IT Infrastructure Engineer

Sabenza IT

full-time

Posted on:

Location Type: Office

Location: Western Cape • 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.
  • Conduct regular backup validation and lead disaster recovery testing.
  • 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
  • participating in standby and after-hours support
  • 2nd and 3rd level support for infrastructure incidents
  • assist in cloud migration and optimization initiatives
  • implement and manage VEEAM backup and disaster recovery solutions
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 ServersHyper-VMicrosoft SQL ServerAzure technologiesIP telephonyVoIP systems
Soft Skills
Technical documentationSystem architectureKnowledge sharingMentoringContinuous service improvement
Certifications
ITIL certificationHP Networking Certifications Network Professional (ACNP)Microsoft Certifications (AZ-104, AZ-305)Linux Certifications (LPIC-1, RHCSA)Cisco CCNACisco CCNP