Senior .NET Developer (iOCO0133)

iOCO Limited; Cape Town; Hybrid; ZAR 900,000 - 1,200,000; Full time

Job summary

iOCO Limited is seeking a highly skilled Senior .NET Developer for an initial 6-month contract in Cape Town. You will design, develop, and maintain enterprise-grade applications using the Microsoft stack, with a focus on back-end services, APIs, and microservices.

The role requires strong cloud and Agile delivery experience, plus front-end familiarity with Blazor/Angular/React. The ideal candidate has 7+ years of software development experience, expertise in .NET technologies, RESTful APIs, and

Qualifications

• 7+ years of software development experience.
• Strong back-end/API development with .NET stack.
• Experience with Agile delivery environments.

Responsibilities

• Design, develop, test, and maintain enterprise-grade applications using the Microsoft technology stack.
• Develop and support scalable back-end services, APIs, and microservices.
• Build modern web-based user interfaces using front-end frameworks.
• Collaborate with stakeholders to deliver robust solutions.
• Develop and optimise database structures, queries, and stored procedures.
• Contribute to technical design discussions and architecture decisions.
• Participate in code reviews and promote best practices.
• Troubleshoot and resolve complex technical issues.
• Support deployment and integration within Azure cloud environment.
• Contribute to Power Platform development when required.

Skills

7+ years software development

Backend development

API design

Microservices

C#

RESTful APIs

Agile delivery

Tools

.NET Framework/.NET Core/.NET

Blazor

Angular

React

JavaScript/TypeScript

HTML5

CSS3

Microsoft Azure

Azure Functions

Azure DevOps

Docker

Kubernetes

Power Platform

Job description

We are seeking a highly skilled Senior .NET Developer to join our team on an initial 6-month contract. This role will suit a seasoned developer with strong back-end development expertise, experience building scalable APIs and microservices, and exposure to modern front-end technologies. The ideal person will be comfortable working in a cloud-first environment and have a proven track record of delivering high-quality solutions within Agile delivery teams.

What you'll do:

• Design, develop, test, and maintain enterprise‑grade applications using the Microsoft technology stack.
• Develop and support scalable back‑end services, APIs, and microservices.
• Build and enhance modern web‑based user interfaces using contemporary front‑end frameworks.
• Collaborate with Business Analysts, Solution Architects, Product Owners, and Development teams to deliver robust solutions.
• Develop and optimise database structures, queries, and stored procedures.
• Contribute to technical design discussions and architectural decisions.
• Participate in code reviews and promote development best practices.
• Troubleshoot, debug, and resolve complex technical issues.
• Support deployment and integration activities within an Azure cloud environment.
• Contribute to the development and enhancement of Power Platform solutions where required.

Your Expertise:

• Essential
  • Minimum 7+ years' experience in software development.
  • Extensive experience developing applications using:
  • .NET Framework / .NET Core / .NET
  • C#
  • RESTful APIs
  • Microservices Architecture
  • Strong experience designing and integrating APIs and back‑end services.
  • Solid understanding of software design principles and development best practices.
    • Strong database development experience, including:
    • Microsoft SQL Server
    • SQL query optimisation
    • Stored procedures
    • Data modelling
  • Experience working within Agile delivery environments.
  • Excellent problem‑solving and analytical skills.
  • Strong communication and stakeholder engagement abilities.
• Front‑End Experience
  • Experience with one or more of the following technologies:
  • Blazor
  • Angular
  • React
  • JavaScript / TypeScript
  • HTML5 and CSS3
• Advantageous Experience
  • The following experience would be highly beneficial:
    • Microsoft Azure cloud services.
    • Azure App Services.
    • Azure Functions.
    • Azure DevOps.
  • CI/CD pipeline implementation and support.
  • Containerisation technologies such as Docker and Kubernetes.
  • Integration platform experience.
  • Power Platform development, including:
    • Power Apps
    • Power Automate
    • Power BI
    • Power Platform integrations

Key Competencies:

• Strong technical leadership capabilities.
• Ability to work independently and take ownership of deliverables.
• Adaptable and solutions‑focused mindset.
• Strong attention to detail and commitment to quality.
• Ability to operate effectively in a fast‑paced environment.
• Excellent collaboration and mentoring skills.
• Proactive approach to identifying and resolving issues.

Other information applicable to the opportunity:

• Contract Type: Initial 6-Month Contract
• Location: Cape Town (Hybrid)
• Experience Level: Senior (7+ Years)

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.