Infrastructure Lead at Old Mutual

Job Description

• The Infrastructure Lead is responsible for the design, implementation, maintenance, and continuous improvement of the organisation’s IT infrastructure.
• This includes on-premises and cloud environments, servers (Windows & Linux), storage (SAN), networking (firewalls, switches, load balancers), virtualization (VMware vSphere), backups, disaster recovery, and supporting the migration to Azure.
• The role also involves leading a team, collaborating with stakeholders, and ensuring high availability, security, and performance of all infrastructure components.

Infrastructure Management:

• Oversee and maintain Windows and Linux server ecosystems.
• Manage and optimize VMware vSphere/ESXi environments, including patching, upgrades, troubleshooting, and performance monitoring.
• Administer SAN storage, ensuring optimal performance, capacity planning, and data integrity.
• Maintain and support network infrastructure: firewalls switches, load balancers, and routing
• Oversee backup and disaster recovery strategies, ensuring regular testing and compliance.
• Ensure all systems are compliant with security standards and best practices.
• Develop, maintain, and enhance PowerShell scripts to automate routine tasks, improve efficiency, and support infrastructure management.

Cloud & Modern Platforms:

• Manage and optimize Azure cloud resources; support and drive migration initiatives to Azure.
• Support hybrid cloud networking (e.g., IPSEC tunnels, on-prem AD integration, blob storage).
• Support and maintain Kubernetes and API Manager environments
• Implement and support DevOps practices and automation

Networking & Security:

• Collaborate with the security team for configuration and troubleshooting
• Document and maintain firewall rules, network diagrams, and security controls.
• Ensure robust cybersecurity controls and participate in vulnerability management and remediation.

Collaboration & Leadership:

• Lead and mentor the infrastructure team, fostering a culture of continuous improvement and knowledge sharing.
• Work closely with development, business, and IT teams to analyze requirements and deliver solutions.
• Provide expert technical guidance and input on system architecture, integration, and best practices.
• Participate in architectural design, documentation, and consulting.

Operational Excellence:

• Ensure high availability and reliability of core services.
• Monitor and report on infrastructure health, usage, and performance.
• Document and execute monthly reporting processes.
• Participate in after-hours support and emergency response as needed.
• Maintain and improve technical documentation and standard operating procedures.

Required Experience & Skills:

• Experience: 10+ years in IT infrastructure roles with proven leadership experience.

Technical:

• Deep expertise in Windows & Linux server administration.
• Strong VMware vSphere/ESXi management.
• SAN storage and backup solutions
• Advanced Active Directory (on-prem & Azure AD), Exchange (2019 & O365), DNS, IIS.
• Cloud platforms: Azure (required), AWS (advantageous).
• Networking: firewalls (Fortinet), switches, load balancers, MPLS/IP routing.
• Scripting: PowerShell (required), other automation tools (advantageous).
• Security: certificate management, vulnerability management, cybersecurity best practices.
• API/Integration concepts, Kubernetes, DevOps (advantageous).

Soft Skills:

• Strong problem-solving, analytical, and critical thinking skills.
• Excellent communication (oral & written) and interpersonal skills.
• Ability to work under pressure, prioritize, and deliver quality results.
• Proactive, self-motivated, and collaborative team player.
• Strong organizational and time management skills.
• Customer-focused and adaptable to changing priorities.

Skills

• Computer Literacy, Database Administration, Database Management Systems (DBMS), Database Queries, Data Controls, Document Management, Executing Plans, Expertise Management System, Knowledge Management, Metadata Management, Object-Oriented Database Management System (OODBMS), Office Systems, Oral Communications, Policies & Procedures, Test Case Management

Competencies

• Collaborates
• Communicates Effectively
• Decision Quality
• Ensures Accountability
• Manages Complexity
• Optimizes Work Processes
• Plans and Aligns
• Tech Savvy

Education

• NQF Level 5 - Higher, Advance or Occupational Certificate or equivalent

Closing Date

• 06 October 2025