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Systems Administrator

Cape Town, South AfricaFull-timePosted Oct 9, 2026

Job description

Scope of role A passionate System Administrator with strong competency in SQL Server, Windows Server Operating System and Internet Information Services (IIS).

Key responsibilities

  • Manage and configure SQL Server databases including performance monitoring and tuning.
  • Administer and support of all Windows Servers including websites hosted on IIS.
  • Performance monitoring and tuning of Windows Servers and IIS.
  • Deployment, administer and support of in-house developed applications which includes, Web Applications, RESTFUL Web Services, backend applications and ETL tools.
  • Collaborate with developers to design, document and implement of low-latency, high-availability, and performance applications.
  • Collaborate with other team members including software developers and test analysts.
  • Will be required to support reports on Crystal Reports
  • Must be able to interact with product stakeholders.
  • Work and thrive in a fast-paced environment, learn rapidly and master diverse web technologies and techniques.
  • Have a self-motivated work mentality.
  • Demonstrates success in a small team environment.

Requirements

  • Knowledge of C#, .NET Core, Entity Framework, MVC and Blazor will be an advantage.
  • Must have extensive experience in managing Windows Servers and IIS.
  • Extensive experience in the design and use of relational databases with SQL including Stored Procedures. SQL Server experience is essential.
  • Experience in working with PostgreSQL database will be an advantage.
  • Experience using RESTful web services, JSON in particular.
  • Experience with continuous integration and DevOps tools.
  • Experience with version control (preferably git).
  • Experience with Agile Software Development Life Cycle.
  • Business intelligence background will be an advantage.
  • Familiarity with Azure Cloud Services will be beneficial.

Qualifications

  • Tertiary Qualification in Computer Science, Computer Engineering, Information Systems or related technical discipline.
  • Minimum of 5 years’ experience working in a Windows Server environment in particular the following applications: o SQL Server Databases o IIS Competencies
  • Must display an ability to be deadline and results driven.
  • Must display an ability to interact directly with end users.
  • Must be able to work well under pressure.
  • Must display problem-solving skills and techniques.
  • Must be inquisitive about new technologies, tools and trends within the development community.
  • Standard Microsoft Office efficiencies are required.
  • Background in utilities management especially water and electricity metering will be an advantage.

Description copied from Ontec's careers page. Read the full posting before you apply.

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