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Senior Systems Administrator

Optimal Growth Technologies
South Africa only

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Senior System Administrator

6 MONTH CONTRACT

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

About the job

Apply before

Posted on

Job type

Contractor

Experience level

Experience

10 years minimum

Location requirements

Hiring timezones

South Africa +/- 0 hours

About Optimal Growth Technologies

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Optimal Growth Technologies

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