Cape Town City Centre: Senior IT Infrastructure Engineer

Job Description: The Senior IT Infrastructure Engineer is responsible for the setup, configuration, support, and maintenance of our clients hybrid infrastructure environment, which includes on-premises and cloud based servers, storage, and network switches. The role ensures optimal performance, security, and availability of infrastructure services and supports continuous improvement through upgrades, patching, and documentation. Responsibilities: Hybrid Infrastructure Operations Deploy, configure, and maintain Windows and Linux servers across on-premises and Microsoft Azure environments. Manage HP Synergy blade servers and associated storage technologies. Administer Hyper-V clusters and failover configurations for Microsoft SQL Server. Perform regular patching, firmware updates, and server upgrades in line with the companys IT standards. Monitor system performance and proactively resolve issues to ensure high availability. Network Infrastructure Configure and maintain HP/Aruba network switches and LAN/WAN/VPN connectivity. Support perimeter security and internal network segmentation. Configuration and management of Azure Virtual Networks (VNets) Implementation of Network Security Groups (NSGs) Monitoring of Azure network connectivity, performance, and availability Integration with on-prem infrastructure via VPN and ExpressRoute Troubleshooting and optimization of hybrid network routing Collaborate with Security teams to ensure network compliance and resilience. Internet Connectivity LAN/WAN/VPN infrastructure management ISP coordination and performance optimization Network monitoring and proactive issue resolution Alignment with hybrid cloud and continuity strategies IP Telephony IP telephony and VoIP system administration Integration with Microsoft Teams and collaboration platforms Hardware/software support for telephony infrastructure Documentation of telephony architecture and service providers Cloud Integration Support integration between on-premises infrastructure and Microsoft Azure services. Administer Azure AD, DNS, and Microsoft 365 services including SharePoint Online and Remote Desktop Services. Assist in cloud migration and optimization initiatives. Backup and Recovery Implement and manage VEEAM backup and disaster recovery solutions. Conduct regular backup validation and recovery testing. Lead Disaster Recovery Test Initiatives for the company. Support and Escalation Provide 2nd and 3rd level technical support for infrastructure-related incidents. Participate in standby and after-hours escalation support. Document root cause analysis and contribute to continuous service improvement. Documentation and Reporting Maintain accurate technical documentation including SOPs, topology diagrams, and configuration logs. Report on system health, capacity, and risk posture to the IT Infrastructure Manager. Collaboration and Mentorship Work closely with the IT Infrastructure Manager and other engineers to align with the companys IT strategy. Mentor junior engineers and contribute to knowledge sharing across the team. Experience in the following technologies and concepts: HP Synergy / Server Blade Infrastructure Storage Technologies Preferable HPE and Fiber Channel Hyper-V and Hyper-V Clusters Failover Clusters for MS SQL Server LAN/WAN/VPN Technology Microsoft AD / Azure AD / DNS Remote Desktop Services Microsoft 365 and SharePoint Online DNS and Cert management IP Telephony VEEAM Backup and Recovery Operating Systems Microsoft and Linux In-depth understanding of TCP/IP and internetworking with heterogeneous technologies Perimeter Security Progression and capacity planning. Minimum 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.