Western Cape: Senior IT Infrastructure Engineer posted by Recruit-It

Job Description:
The Senior IT Infrastructure Engineer is responsible for the setup, configuration, support, and
maintenance of our client’s 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 company’s 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 company’s 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.