Lead .Net and Blazor Developer

iOCO Pty Ltd; Cape Town; On-site; ZAR 900 000 - 1 200 000; Full time

Job summary

A leading tech firm in South Africa is seeking a seasoned Lead Developer to design, build, and maintain enterprise-grade applications using modern .Net technologies including C#, Blazor, and Azure. The role involves developing scalable web applications, enhancing component-based UIs, and contributing to CI/CD processes. Candidates should have substantial experience with .NET technologies, strong problem-solving skills, and the ability to mentor junior developers. Join us to work in a dynamic environment focused on cutting-edge solutions.

Qualifications

• 10+ years of software development experience with 5+ years in .NET technologies.
• Deep expertise in C# and .NET Core development.
• Solid experience with Blazor Framework, including Blazor Server and WebAssembly.
• Strong understanding of secure coding practices and audit logging.

Responsibilities

• Design and maintain scalable web applications using C#, .NET Core, and Blazor.
• Develop back-end services using ASP.NET Core following clean architecture principles.
• Integrate Azure services for authentication and secure file handling.
• Collaborate with cross-functional teams and mentor junior developers.

Skills

C# programming

.NET Core

Blazor Framework

Entity Framework Core

Azure services

Agile/Scrum environments

Problem-solving

Leadership

Tools

Azure DevOps

MediatR

Fluent UI

MudBlazor

Job description

Overview

We are looking for a seasoned Lead 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.

Responsibilities

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.

Expertise & Qualifications

• 10 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.

Technology Areas

• 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.