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Salary
≈ $34k – $63k per year (Estimated)
Location
In office (Pretoria)
Seniority
Senior · 6+ years exp

Confirmed on the employer's own hiring board on Oct 22, 2026. First seen by Alion on Oct 20, 2026. iOCO scores A on the Alion truth index.

Overview
Company
Impact
Profile match
iOCO is a South African technology company offering cloud, technology and managed services to business customers. Its job ads cover sales, product design, desktop support, SQL development and application support roles. The company is headquartered in Johannesburg, South Africa.

Are you a passionate Senior Back End Developer ready to build secure, scalable and high-performing software solutions for web and Windows applications? Join our team to develop APIs, implement business logic and leverage modern frameworks, microservices, containerisation and DevSecOps practices to deliver reliable, maintainable software.

What you'll do:

  • Design, develop and maintain back-end components for web and Windows applications.
  • Develop server-side functionality using relevant technologies, including C#, JavaScript, .NET Framework, .NET Core and Node.js.
  • Design, develop and maintain APIs and application integrations.
  • Contribute to the implementation and maintenance of microservices architectures.
  • Implement appropriate API security and application security controls.
  • Develop reliable, scalable and maintainable application services.
  • Collaborate with front-end developers, business analysts, testers and solution architects to deliver integrated solutions.
  • Identify and resolve defects, performance bottlenecks and integration issues.
  • Apply containerisation practices to support consistent application packaging and deployment.
  • Contribute to DevSecOps practices and the integration of security into the software development lifecycle.
  • Participate in code reviews, testing, deployment activities and technical troubleshooting.
  • Maintain technical documentation and support application maintenance and production issue resolution.
  • Apply approved coding standards, development practices and security requirements.

Qualifications:

  • Senior Certificate (Grade 12).
  • Certification in Software Development.

Your Expertise:

  • At least six (6) years of experience developing web and Windows applications.
  • Experience with technologies and practices including:
    • C#.
    • JavaScript.
    • .NET Framework and/or .NET Core.
    • Node.js.
    • Microservices architecture.
    • API security.
    • Containerisation.
    • DevSecOps practices.

Required Competencies:

  • Server-side application development.
  • API design, development and integration.
  • Application security.
  • Microservices design and implementation.
  • Software troubleshooting and debugging.
  • Application performance optimisation.
  • Containerisation and deployment practices.
  • Secure software development.
  • Code review and technical documentation.
  • Collaboration across multidisciplinary development teams.

Other information applicable to the opportunity:

  • Permanent position
  • Location: Pretoria

Why work for us?

Want to work for an organization that solves complex real-world problems with innovative software solutions? At iOCO, we believe anything is possible with modern technology, software, and development expertise. We are continuously pushing the boundaries of innovative solutions across multiple industries using an array of technologies.?

You will be part of a consultancy, working with some of the most knowledgeable minds in the industry on interesting solutions across different business domains.?

Our culture of continuous learning will ensure that you will have all the opportunities, tools, and support to hone and grow your craft.?

By joining IOCO you will have an open invitation to developer inspiring forums. A place where you will be able to connect and learn from and with your peers by sharing ideas, experiences, practices, and solutions.?

iOCO is an equal opportunity employer with an obligation to achieve its own unique EE objectives in the context of Employment Equity targets. Therefore, our employment strategy gives primary preference to previously disadvantaged individuals or groups

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