254 C Net jobs in South Africa

Matriarch is a specialist energy and utilities management company and a proud partner within the Fedgroup ecosystem.

About Matriarch

Matriarch is an Intelligent Asset Management company. We manage high-value energy assets by leveraging advanced IoT technology, real-time data and actionable insights to:

• Optimise performance
• Maximise return on investment (ROI)
• Enhance sustainability

Our mission is simple: provide data-driven tools and insights that cut risk, enable smarter decisions, and deliver long-term, measurable returns.

To make this possible, we've built both external tooling and internal tooling (Grafana dashboards, monitoring systems, and custom data pipelines with .NET, MSSQL and React). If we can measure it, we can display it.

We're a dynamic team with ongoing R&D projects, exploring new opportunities in industries like agriculture and beyond.

The Role

We're looking for a talented .NET Developer who wants to work on a variety of real-world projects. You'll be building the .NET services behind our client portal (where customers monitor their assets) and our internal operations tooling. Expect to work with .NET Core, ASP.NET MVC, and MSSQL while also dipping into IoT, energy systems and large-scale data.

If you thrive on variety, love solving problems and want to build products that are actually used in the field, this role will keep you engaged.

What You'll Do

• Build and maintain .NET applications that support our client-facing platforms and internal tools
• Integrate with IoT devices, firmware, and third-party APIs
• Help shape and develop APIs and data pipelines (Kafka experience a bonus)
• Collaborate with cross-functional teams on the full product lifecycle: From design → development → deployment → monitoring
• Use Grafana and other internal tools to create dashboards and insights for energy and IoT systems
• Stay hands-on with new tech and contribute to R&D projects across the property, energy and agriculture industries
• Design, optimise and work with SQL databases (including performance-intensive queries)

What We're Looking For

• Strong experience with .NET Core / ASP.NET MVC
• Confident working with databases (SQL, MSSQL) and performance-heavy queries
• Good grasp of API development and integration
• Curious, proactive and comfortable working independently or in a collaborative team
• Excellent communication skills

Bonus Skills (nice to have, not must-haves):

• IoT device integration and firmware experience
• Experience working with large datasets / Kafka / real-time data streaming
• Frontend basics (HTML, CSS, JavaScript)
• Cybersecurity knowledge
• Familiarity with DevOps practices and tools
• Background in the energy or agriculture sector

Why Join Us?

• A role that's varied, hands-on and never boring.
• Work on real IoT + energy systems that drive sustainability and impact
• A pipeline of projects across energy, utilities, and agriculture
• A collaborative culture where your ideas actually make it into production
• Opportunities to learn, experiment, and grow with a forward-thinking team

We're currently looking for a few intermediate and Senior .Net Developers to join our Cape Town based team.

We are working with a few clients, all based in Cape Town and who all work in a hybrid way.

For the Full stack roles, besides using .Net on the back-end, APIs and SQL, etc. the following tech is used on the front-end: Angular, React or Blazor.

There are also back-end focused positions available.

I'm happy to share further details if you're open to a discussion (role/ client specific).

Other information applicable to the opportunity:

• Contract Position: 12 Months (can look at perm as an option)
• Location: Cape Town - Hybrid
• Level/ years experience: Intermediate - Senior (5+ years)

We are seeking a skilled .NET Developer with proven experience in AWS, Power BI, and Python scripting. The ideal candidate will be responsible for designing, developing, and maintaining scalable applications, integrating cloud-based solutions, and delivering data-driven insights.

Job Duties:

• Develop and maintain .NET applications across various business domains
• Design and implement cloud-native solutions using AWS
• Create and manage Power BI dashboards and reports
• Automate data workflows and ETL processes using Python
• Collaborate with cross-functional teams to define and deliver technical solutions
• Troubleshoot, optimize, and enhance existing systems and codebases

Key Requirements:

• 5+ years experience with relevant technologies
• Strong proficiency in .NET (C#)
• Hands-on experience with AWS services
• Solid understanding of Power BI for reporting and dashboards
• Proficient in Python scripting for automation and data processing
• Ability to work independently and in a collaborative team environment

We're seeking a skilled Senior .NET Developer to join our growing team.

In this role, you will be required to design, develop and maintain software applications using the .NET framework. The role involves building high-quality, scalable, and efficient solutions that meet technical and business needs. The developer will work closely with cross-functional teams, including business analyst and project managers, to ensure successful delivery of software projects and ongoing system enhancements.

What you'll do:

Translate requirements to solution design

• Translate business functional requirements into a fit for purpose technical design that meets IT Architecture, data, security, resilience and quality standards.
• Responsible for the target selection and acquisition of off-the-shelf components where such components will reduce cost and speed up development.
• Document and communicate the solution and high-level designs using effective visualisations and technical writing skills.
• Identify opportunities in development through coding modules that can be distributed amongst developers to support resource scalability within a project.

Application development

• Design, develop and maintain web and desktop applications using .NET core, ASP.NET, and related technologies.
• Create robust, scalable, and secure RESTful APIs and microservices to support enterprise-wide applications.
• Collaborate with software architects to design high-level application architecture and ensure the scalability and performance of systems.
• Implement solutions that follow design patterns, coding standards, and industry best practices to ensure maintainability and reusability.
• Participate in code reviews and contribute to architectural discussions.
• Optimize database performance through indexing, query optimization, and ensuring proper data relationships.
• Perform unit testing and integration testing to ensure that developed solutions meet functional and non-functional requirements.
• Deploy applications to cloud environments such as Azure or AWS, ensuring security, scalability and availability.
• Write and maintain technical documentation, including application architecture, code documentation and user manuals.
• Participate in the continuous improvement of software development processes by recommending tools and techniques that increase productivity and quality.
• Collaborate with business analysts to translate business requirements into technical specifications.
• Provide regular updates to the Application Development Lead and/or Project Managers against expected milestones.

Key functions:

• Balancing performance and scalability with maintainability in large-scale enterprise applications.
• Staying updated on the latest technologies and integrating them into the software development process.
• Stakeholder management
• Develop solutions that extensible and robust, with the option to re-use across multiple solutions.
• Work effectively in a small team with many external interfaces into the various application projects.

Your expertise:

• The technology skillset required is:
• Microsoft technologies - .Net; SQL, Oracle, SharePoint
• Software Development Tools: MS Visual Studio, Microsoft Team Foundation Server
• Software Languages: C#.Net, HTML, DHTML, JavaScript, VbScript, XML, CSS, Advanced Transact SQL.
• Technologies: Web Services, Windows Services, AJAX, Design Patterns, COM+, Active Directory, MFT, SharePoint
• Advantageous - SAP Technologies – SAP Cloud platform, SAP Process Orchestrator
• A good knowledge of available IT industry standards around solution design and software development
• Broad knowledge of current Industry Technologies, Platforms and Technology Shifts
• Very strong solution conceptualisation skills
• Strong Writing and Communication skills and the associated ability to develop the Solution and High-Level Designs
• Excellent interpersonal skills and team working,
• Has a knowledge of relevant development SDLC.

Personal Attributes:

• Excellent verbal and written communication skills, with the ability to present complex ideas clearly.
• Strong analytical and problem-solving skills.
• Comfortable working under pressure and meeting established business objectives.
• Collaborative mindset with the ability to work effectively across cross-functional teams.
• Empathy for stakeholders and a user-centric approach to solution design.

Other information applicable to the opportunity:

• Contract Position: 12 Months
• Location: Cape Town - Hybrid

We are looking for a .NET Developer for our client based in the financial industry for a fixed term employment contract based in Johannesburg on-site (6 months and renewable).

Requirements and Experience:

• Relevant degree or qualification
• At least 6 years of development experience
• 5 years or more experience working with C#, .NET and Azure
• Financial services experience is advantageous
• Has to be based in Johannesburg

Hiring: .NET Developer (C#) – Johannesburg West

We are on the lookout for a
skilled .NET Developer (C#)
to join our team on a hybrid model (3 days per week on-site: Tuesday, Wednesday & Thursday).

Key Details:

• Position:
  .NET Developer (C#)
• Experience:
  7–12 years preferred
• Rate:
  R550 – R650 per hour (please ensure this range works for you)
• Location:
  Johannesburg West (Hybrid – 3 days on-site)

Skills & Expertise:

• Strong proficiency in
  C# .NET Development
• Hands-on experience with
  Azure DevOps – CI/CD Pipelines
• Solid knowledge of
  GIT
• Proven
  API System Integration
  experience
• Exposure to
  AWS
  (preferred, migration planned)
• Angular
  experience (advantageous but optional)
• Insurance industry background very important

If you're interested or know someone suitable, please get in touch

Job Description: The NET Developer will assist in end-to-end system enhancement and new development using C#, Bootstrap, CSS3, HTML5, Typescript, JavaScript, Knockout, ASP.NET Web forms, .NET Core, MVC, and Entity Framework, SQL Server including creating stored procedures, functions, tables and creating and maintaining SSIS packages and SSRS reports. This position will assist in enhancements of new and existing systems and entire end-to-end system development using .NET technologies. As a full stack developer, skills are needed in both front-end and back-end development. C#, Angular, Bootstrap, CSS3, HTML5, Typescript, JavaScript, Knockout, ASP.NET Web forms, .NET Core, Entity Framework and SQL 2016+

• Gather business requirements, analyze, and create functional and technical specifications
• Analyze and design SQL databases and database objects
• Perform end-to-end development and testing and support business users with user testing
• Resolve system issues and problem reports reported by end users though the Help Desk.

• Experience in developing ASP.NET Required 3 Years
• Experience with ASP.NET Web forms Required 3 Years
• Experience with RESTFUL development for web services and APIs Required 3 Years
• Experience using C#, VB.NET or ASP.NET Core Required 3 Years
• Proficiency with using Visual Studio 2019 and previous versions Required 3 Years
• Experience in working with HTML5, CSS3, JavaScript, Typescript, Knockout, and Angular Required 3 Years
• Experience using LINQ and Entity Framework Required 3 Years
• Team Foundation Server/Azure Dev Ops (or other version control tools) required 3 Years
• SQL Server 2016+ Required 3 Years
• Experience in creating batch packages using SSIS Required 3 Years
• Experience in creating reports using SSRS Required 3 Years
• Database modeling & Design Required 2 Years
• Experience in using Power BI Desired 1 Years
• Experience with Microsoft Azure Cloud services Desired 1 Years
• Experience designing CI/CD pipelines into Azure App Services Desired 1 Years can demonstrate knowledgeable experience in Open Text Content Server Highly desired can demonstrate knowledgeable experience in Adobe Experience Manager specifically using Designer, Workbench, and Workflow.

A dynamic and fast-growing organisation in the life insurance industry is seeking a passionate and skilled Software Developer to join its vibrant team in Sandton, Johannesburg.

If you're excited by the idea of transforming the life insurance space with technology that evolves as people's lives do, this role is for you.

What You’ll Be Doing

As a Software Developer, you’ll be responsible for the design, development, and deployment of software components and standalone applications. You’ll work as part of the Application Foundry team, which includes Developers, Testers, and Business Analysts, delivering high-quality software that drives innovation in the life insurance industry.

Minimum Qualifications

Matric / Grade 12 with at least a C symbol for Higher Grade Mathematics

A degree or diploma in Information Systems, Engineering, or Mathematical Sciences

Required Experience

2–5 years of hands-on development experience using technologies such as WCF, EF, MVC4/5, and WebAPI

Proven experience in web development, multithreaded applications, and rich internet applications

Key Knowledge Areas

Technologies: .NET 4+, LINQ, Entity Framework, WebAPI

Strong grasp of Windows operating systems and communication protocols

Solid understanding of UML, XML, HTML, and JSON

Familiarity with Agile development practices

Bonus: Experience with Silverlight, WCF, grpc, Docker, Kubernetes, and WPF

The Reference Number  for this position is PM60847  which is a Permanent Hybrid position based in Johannesburg offering a cost to company of up to R900k Per Annum negotiable on experience and ability. Contact Phindi at or call her at to discuss this and other opportunities.

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