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Infrastructure Manager – IT & Electrical Systems

  • Johannesburg
  • Salary: Market Related
  • Job Type: Permanent
  • Sectors: IT Mining
  • Reference: 155641

Apply before Dec 28 2025 | 24 Days left

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Vacancy Details

Employer: Praesignis (Pty) Ltd

Overview

The purpose of this role is to lead and manage the organisation’s IT infrastructure environments, ensuring the stability, scalability and security of systems. The Infrastructure Manager is accountable for infrastructure availability, power continuity, internal change governance and vendor performance, while providing senior-level escalation support.


Primary Responsibilities

  • Lead systems and infrastructure management (on‑premises & cloud).
  • Oversee network, server, storage and virtualisation environments.
  • Implement and monitor security, backup and disaster recovery strategies.
  • Establish and maintain system observability and performance optimisation.
  • Govern internal change control, including UAT sign-off and controlled deployments.
  • Ensure compliance with relevant IT policies, standards and software licensing.
  • Oversee power and facilities systems supporting IT operations, including inverters, lithium battery storage and other miscellaneous infrastructure support.
  • Manage third‑party/vendor relationships and SLA performance.
  • Provide internal technical escalation support for critical incidents.

Key Performance Indicators

  • Meet or exceed agreed uptime targets across systems, networks and applications.
  • Successful recovery testing of backup and disaster recovery solutions.
  • Compliance with software licensing and security governance.
  • Change management adherence and risk minimisation.
  • Positive internal stakeholder satisfaction feedback.

Required Technical Competencies
  • Strong experience in systems infrastructure administration: Windows Server, Linux, VMware.
  • Network administration, including VLANs, firewalls, VPN and routing.
  • Infrastructure performance monitoring and root cause analysis.
  • Electrical infrastructure understanding, including Inverter and battery storage.
  • Active Directory and Group Policy.
  • SQL DBA.
  • Technical documentation and architecture familiarity.

Behavioural & Leadership Competencies
  • Strong analytical and troubleshooting ability.
  • Effective prioritisation and task execution under pressure.
  • Clear written and verbal communication.
  • High level of accountability, ownership and professional integrity.
  • Ability to influence cross-functional teams without direct management authority.


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20 people have applied for this job. 922 people have viewed this job.

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© Careers24. All rights reserved.

About Careers24.com

  • Careers24 is a leading South African job portal that assists jobseekers from all sectors and experience levels to find and apply for vacancies from hundreds of South Africa’s leading companies. With over a million visitors a month, we are one of the most popular destinations to find employment online in South Africa.

    Our mission is to become the destination where every candidate can find an ideal job and where every company can find the perfect candidate. We are a proud member of the Media24 family and part of the Naspers group of companies.

Company

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