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  • Posted: Apr 29, 2026
    Deadline: Not specified
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  • Optimal Growth Technologies provides organizations of all sizes with the best, most trustworthy solutions. In the ever-evolving technology market, we believe that companies need reliable allies who can guide them through the challenges that accompany technological growth

     

    Senior Systems Administrator- JHB

    Role Overview

    • We are seeking a highly experienced Senior System Administrator to manage, support, and optimize enterprise IT environments with a strong focus on Microsoft cloud and identity technologies. 
    • The ideal candidate will bring deep technical expertise, strong operational stability, and excellent communication skills to support enterprise-scale infrastructure and end-user environments.

    Key Responsibilities

    • End-to-end administration and management of Microsoft Intune (configuration, deployment, policy management, application packaging, and device lifecycle management)
    • Administration and support of Active Directory (AD) environments including user, group, and policy management
    • Manage endpoint security, compliance policies, and device governance across hybrid environments
    • Troubleshoot and resolve complex system, identity, and endpoint issues
    • Implement and maintain security baselines and device configuration standards
    • Support identity and access management processes across enterprise systems
    • Collaborate with internal IT teams and stakeholders to ensure system reliability and performance
    • Monitor systems proactively to ensure uptime, stability, and compliance
    • Document technical processes, configurations, and operational procedures
    • Participate in escalation support and incident resolution for critical infrastructure issues

    Required Skills & Experience

    • 10+ years' experience in Systems Administration or similar infrastructure-focused roles
    • Exceptional hands-on experience with Microsoft Intune (end-to-end administration is essential)
    • Strong experience in Active Directory administration and management
    • Solid understanding of Microsoft ecosystem including endpoint management and identity services
    • Experience with hybrid environments (on-prem and cloud integration)
    • Strong troubleshooting and problem-solving abilities across enterprise systems
    • Excellent communication skills, both written and verbal, with the ability to engage technical and non-technical stakeholders
    • Ability to work independently in a remote, distributed team environment

    Personal Attributes

    • Highly organized and detail-oriented
    • Strong sense of accountability and ownership
    • Calm under pressure and able to manage priority incidents effectively
    • Proactive and solutions-driven mindset
    • Strong team collaboration and stakeholder engagement skills

    Tailor your CV for free

    Method of Application

    Interested and qualified? Go to Optimal Growth Technologies on www.careers-page.com to apply

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