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Senior Systems Administrator

Telesure Investment HoldingsZA

10 days ago

Job description

Job title : Senior Systems Administrator

Job Location : South Africa,

Deadline : October 18, 2025

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Job Purpose

Responsible for overseeing the design, implementation, and maintenance of the organisation’s IT infrastructure. This includes servers, storage, networking, and cloud services. The individual in this role ensures the stability, integrity, and efficient operation of the information systems that support core organisational functions. This role will also oversee more of the junior staff.

Responsibilities

Infrastructure Support

Provide advice and assistance to users to resolve queries and ensure the applications / website capabilities are well understood by the business. Ensure system availability, functionality, integrity and efficiency, and maintain system configuration and documentation. Provide IT support for current and emerging technologies. Manage computer and user accounts, privileges, and system access via Active directory. Install and administer hardware, Windows operating systems, and software applications. Including system fixes, updates, and enhancements. Provide IT support for infrastructure systems including virtualization, Servers, OS, monitoring and all other relevant systems to ensure that operability requirements are up to date with latest patches and firmware and that the hardware is configured properly.

Leadership and Direction

Supervise a team performing routine work.

Information Security

Implement and maintain security measures to protect IT infrastructure and data. Respond to security incidents and ensure compliance with security policies.

Faults Diagnosis and Correction

Provide fault isolation and resolution to limit and address issues promptly. Perform troubleshooting, analysis of alerts, and repairs on systems. Ownership and execution of incident management and system maintenance.

Solutions Analysis

Interpret data and identify possible answers. Involves navigating a wide variety of processes, procedures and precedents.

Document and Reporting Management

Create and maintain accurate documentation of systems, configurations, and procedures. Generate reports on system performance, security, and capacity planning.

Operational Compliance

Develop knowledge and understanding of the organisation's policies and procedures and of relevant regulatory codes and codes of conduct to ensure own work adheres to those standards. Obtain authorisation from a supervisor or manager for any exceptions from mandatory procedure. Implement security procedures, as directed by security team.

Information and Business Advice

Resolve queries from internal or external customers or suppliers by providing information on complex processes and the related policies, referring to others where necessary for interpretation of policy.

Monitor IT Performance

Perform routine website / applications software tests and respond to user emails to monitor, diagnose, and correct performance issues. Manage system resources by monitoring of performance, capacity, availability, serviceability, and recovery.

Applications Software Maintenance

Monitor and identify software defects and suggest corrections for approval by more senior colleagues to maintain fully functioning applications software.

Continuous Improvement

Contribute to reviewing existing operations in own area of work and generate new ideas to assist in identifying continuous improvements.

Personal Capability Building

Develop and maintain excellent process or technical skills by participating in assessment and development planning activities as well as formal and informal training and coaching., Skills Azure, Office 365, AWS platforms, Cluster server software, Containerisation, Create, test, and update automation processes for AD, Exchange, Windows / Linux server and application standards, File server software, Knowledge of automation concepts using Cloud tools such as : Nutanix Beam, PowerShell, or common language and leading deployment methodologies, Management of server images, applications, OS installations, deploying physical servers, and documentation, Microsoft Active Directory, Microsoft Hyper-V Server, Observability

Education

Grade 12 / SAQA Accredited Equivalent (Essential); Relevant industry qualifications such as Microsoft MSCE, or relevant virtualization qualification (Essential); Relevant degree in IT (Advantageous), Kubernetes, Rancher and Redis (Advantageous); Containerisation and DevOps (Advantageous)

Experience

3 - 5 years’ experience in Multiplatform environments with a focus on Observability and System support (Essential); 1 - 2 years’ experience managing a team (Essential)

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