Lead .Net and Blazor Developer

Blue Pearl PTY; Cape Town; On-site; ZAR 700,000 - 900,000; Full time

Job summary

A technology firm in Cape Town is seeking a seasoned Lead Developer to design and maintain enterprise-grade applications. You will work with C#, .NET Core, and Blazor, ensuring high standards in coding practices. The ideal candidate has over 10 years of experience, with 5 years focused on modern .NET technologies. This is a hybrid contract position for 6-12 months with opportunities to mentor junior developers and collaborate with cross-functional teams.

Qualifications

• 10 years of software development experience, 5+ with modern .NET.
• Deep expertise in C# programming and .NET Core development.
• Experience with Azure services like B2C and Blob Storage.

Responsibilities

• Design and maintain web applications using C# and Blazor.
• Develop back-end services with ASP.NET Core.
• Implement CI/CD processes with Azure DevOps.

Skills

C#

.NET Core

Blazor Framework

Entity Framework Core

Azure services

Agile methodology

Problem-solving

Tools

Azure DevOps

Fluent UI

MediatR

Job description

Cape Town, South Africa | Posted on 01/17/2026

We are looking for a seasoned Lead Developer who hasevolved with the tech landscape, demonstrating strong adaptability and deepdevelopment knowledge. You’ll play a key role in designing, building, andmaintaining enterprise-grade applications using modern .Nettechnologies—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.

Requirements

Key Responsibilities:

• Design, develop, andmaintain scalable web applications using C#, .NET Core, and Blazor(Server and WASM).
  
• Build and enhance component-basedUIs using Fluent UI (preferred) or MudBlazor, ensuringreusability and performance.
  
• Develop back-endservices using ASP.Net Core, following clean architecture principles.
  
• Integrate with AzureB2C for authentication and manage secure file transfers using AzureBlob Storage.
  
• Implement EntityFramework Core for data persistence, including LINQ queries and database migrations.
  
• Build CQRS-basedrequest pipelines using MediatR.
  
• Implement robust auditlogging, error handling, and security mechanisms.
  
• Contribute to CI/CDprocesses using Azure DevOps for seamless builds, testing, anddeployments.
  
• Collaborate withcross-functional teams including UI/UX designers, QA engineers, andproduct managers.
  
• Stay up-to-date withevolving tech stacks and mentor junior developers.
  

Required Qualifications and Skills:

• 10 years of overall softwaredevelopment experience with at least 5+ years working with modern.NET technologies.
  
• Deep expertise in C# programming and .NETCore development.
  
• Solid experience with BlazorFramework, including Blazor Server and Blazor WebAssembly.
  
• Proficient in creating modular,reusable UI components using Fluent UI or MudBlazor.
  
• Skilled in EntityFramework Core, including writing LINQ queries and handling DBmigrations.
  
• Hands-on experience with Azure services, particularly Azure B2C, Blob Storage,and Azure DevOps.
  
• Familiarity with MediatR and CQRS design patterns.
  
• Strong understanding of securecoding practices, including audit logging, secure filetransfers, and error handling.
  
• Excellentproblem-solving skills and a proactive attitude toward learning andapplying new technologies.
  
• Experience working inAgile/Scrum environments.
  
• Prior involvement inenterprise-grade software projects.
  
• Contributions toopen-source or developer communities.
  
• Proven experiencefilling a leadership role.
  

Technical overview of the required skills:

• C# and.NET Core
  
• Deep understanding of C# isfoundational.
  
• Familiarity with ASP.NET Corefor back-end services
  
• Proficiency in both BlazorServer and Blazor WebAssembly (WASM).
  
• Understanding ofcomponent-based architecture and lifecycle
  
• UILibraries and Design Systems
  
• Experience with Fluent UI(preferred) or MudBlazor
  
• Ability to build reusableUI components like grids, buttons, and menus
  
• EntityFramework Core
  
• For data access and ORM(Object-Relational Mapping).
  
• Includes DB migrations andLINQ queries
  
• Azure DevOps for CI/CDpipelines and deployment
  
• MediatRand CQRS
  
• Implements Command QueryResponsibility Segregation (CQRS) patterns for request handling
  
• Securityand Logging
  
• Audit logging of databasechanges.
  
• Secure file transfers anderror handling
  

• Location: Cape Town (hybrid way of work)

• Contract position – let’s work between 6-12 months.