Infrastructure Lead

Old Mutual; Johannesburg; On-site; ZAR 800,000 - 1,200,000; Full time

Job summary

A leading financial services provider in Johannesburg is seeking an Infrastructure Lead to design, implement, and maintain IT infrastructure. The role involves overseeing server ecosystems and ensuring high availability and security. The ideal candidate will have over 10 years of experience and strong expertise in Windows, Linux, and Azure. This position offers a competitive salary and career advancement opportunities.

Qualifications

• 10+ years in IT infrastructure roles with proven leadership experience.
• Deep expertise in Windows & Linux server administration.
• Strong VMware vSphere/ESXi management.

Responsibilities

• Oversee and maintain Windows and Linux server ecosystems.
• Manage and optimize VMware vSphere/ESXi environments.
• Administer SAN storage, ensuring optimal performance.

Skills

Windows server administration

Linux server administration

VMware vSphere management

SAN storage management

Active Directory

Azure cloud knowledge

PowerShell scripting

Strong problem-solving skills

Excellent communication skills

Cybersecurity best practices

Education

NQF Level 5 - Higher, Advance or Occupational Certificate

Tools

VMware vSphere

Azure

Fortinet firewalls

Kubernetes

Job description

Let's Write Africa's Story Together!

Old Mutual is a firm believer in the African opportunity and our diverse talent reflects this.

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 , 23:59

The appointment will be made from the designated group in line with the Employment Equity Plan of Old Mutual South Africa and the specific business unit in question.

The Old Mutual Story!