Senior C#. Net Developer (Blazor)

Sabenza IT & Recruitment; Eersterivier; On-site; ZAR 600,000 - 900,000; Full time

Job summary

Sabenza IT & Recruitment seeks a Senior Full Stack Developer to build a modern, component-driven application using C#, .NET Core, and Blazor. You will work across backend APIs, rich front-end interfaces, and cloud-based Azure services in a collaborative environment focused on quality and performance.

This role emphasizes clean architecture, reusable UI components, and scalable backend services with exposure to MediatR/CQRS, EF Core, and Azure services (B2C, Blob).

Qualifications

• Deep understanding of C# and ASP.NET Core for backend services.
• Proficiency in Blazor Server and Blazor WebAssembly (WASM).
• Experience with component-based UI and lifecycle.
• Experience with Fluent UI or MudBlazor for UI development.
• Ability to build reusable UI components such as grids, buttons, and menus.
• Familiarity with EF Core for data access and ORM.
• Experience with Azure services and CI/CD pipelines.
• Experience with CQRS and MediatR patterns.

Responsibilities

• Develop and maintain full-stack features using C#, .NET Core, and Blazor.
• Collaborate across backend APIs, front-end interfaces, and cloud-based Azure services.
• Contribute to secure, scalable architectures with clean code and reusable components.
• Support CI/CD pipelines with Azure DevOps and ensure quality through logging and security practices.

Skills

C#

ASP.NET Core

Blazor

Component-based architecture

Reusable UI components

CQRS

MediatR

Security practices

LINQ

Tools

Fluent UI

MudBlazor

Azure DevOps

Azure Blob Storage

Azure B2C

Entity Framework Core

Job description

We are on the hunt for a Senior Full Stack Developer to join a fast-paced, high-impact project building a modern, component-driven application using C#, .NET Core, and Blazor. This role requires strong full-stack capability, with a focus on clean architecture, reusable UI components, and scalable backend services. You’ll work across backend APIs, rich front-end interfaces, and cloud-based Azure services in a collaborative engineering environment focused on quality and performance.

Requirements

• Deep understanding of C# is foundational.
• Familiarity with ASP.NET Core for backend 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.