Senior .Net Developer (with Blazor) (iOCO0119)
iOCO · Cape Town, Western Cape
Posted 8 September 2026
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We are looking for a Senior .Net Developer who has evolved with the tech landscape, demonstrating strong adaptability and deep development knowledge. You’ll play a key role in designing, building, and maintaining enterprise-grade applications using modern .Net technologies—particularly with C#, Blazor, and the Azure ecosystem. If you thrive on clean code, secure practices, reusable components, and scalable architectures, this role is for you. What you'll do:
• Design, develop, and maintain scalable web applications using C#, .NET Core, and Blazor (Server and WASM). • Build and enhance component-based UIs using Fluent UI (preferred) or MudBlazor, ensuring reusability and performance. • Develop back-end services using ASP.Net Core, following clean architecture principles. • Integrate with Azure B2C for authentication and manage secure file transfers using Azure Blob Storage. • Implement Entity Framework Core for data persistence, including LINQ queries and database migrations. • Build CQRS-based request pipelines using MediatR. • Implement robust audit logging, error handling, and security mechanisms. • Contribute to CI/CD processes using Azure DevOps for seamless builds, testing, and deployments. • Collaborate with cross-functional teams including UI/UX designers, QA engineers, and product managers. • Stay up-to-date with evolving tech stacks and mentor junior developers. Your Expertise:
• 7 years of overall software development experience with at least 5+ years working with modern .NET technologies. • Deep expertise in C# programming and .NET Core development. • Solid experience with Blazor Framework, including Blazor Server and Blazor WebAssembly. • Proficient in creating modular, reusable UI components using Fluent UI or MudBlazor. • Skilled in Entity Framework Core, including writing LINQ queries and handling DB migrations. • Hands-on experience with Azure services, particularly Azure B2C, Blob Storage, and Azure DevOps. • Familiarity with MediatR and CQRS design patterns. • Strong understanding of secure coding practices, including audit logging, secure file transfers, and error handling. • Excellent problem-solving skills and a proactive attitude toward learning and applying new technologies. • Experience working in Agile/Scrum environments. • Prior involvement in enterprise-grade software projects. • Contributions to open-source or developer communities. • Proven experience filling a leadership role. Technical overview of the required skills:
- C# and .NET Core
- Deep understanding of C# is foundational.
- Familiarity with ASP.NET Core for back-end services
- Blazor Framework
- Proficiency in both Blazor Server and Blazor WebAssembly (WASM).
- Understanding of component-based architecture and lifecycle
- UI Libraries and Design Systems
- Experience with Fluent UI (preferred) or MudBlazor
- Ability to build reusable UI components like grids, buttons, and menus
- Entity Framework Core
- For data access and ORM (Object-Relational Mapping).
- Includes DB migrations and LINQ queries
- Azure Ecosystem
- Azure B2C for authentication and authorization.
- Azure Blob Storage for file handling.
- Azure DevOps for CI/CD pipelines and deployment
- MediatR and CQRS
- Implements Command Query Responsibility Segregation (CQRS) patterns for request handling
- Security and Logging
- Audit logging of database changes.
- Secure file transfers and error handling
Other information applicable to the opportunity
- Contract position (6 months)
- Location: Cape Town (hybrid way of work)
- Level: Senior (7+ years experience)
Package & Remuneration
Market Related