Senior .NET Developer (C#) – Full Stack

About the role

Tax Consulting South Africa is looking for a seasoned Senior Developer to join its technology team in Bryanston. The role focuses on designing, building, and maintaining high‑quality software solutions using the Microsoft stack.

Key responsibilities

• Design, develop, and maintain clean, efficient, and scalable C#/.NET applications.
• Build and support Blazor WebAssembly front‑ends, REST APIs, and backend services.
• Enhance and troubleshoot solutions within the Microsoft ecosystem, including Azure services.
• Contribute to Power Platform solutions (Power Automate, PowerApps) when required.
• Optimize applications for performance, scalability, and reliability.
• Collaborate with cross‑functional teams to define and deliver new features.
• Document code, processes, and development standards.
• Apply security best practices and resolve system issues promptly.

Required profile

• Bachelor’s degree in Computer Science, Software Engineering or related field.
• Minimum 4 years of professional software development experience.
• Strong expertise in C# and .NET (versions 8‑10).
• Experience with ASP.NET Core, Blazor, REST APIs, and SQL Server/Entity Framework Core.
• Familiarity with clean architecture, CQRS, MediatR, and repository patterns.
• Hands‑on experience with Microsoft Azure services (App Service, Azure SQL, Entra ID/Azure AD, Application Insights, Azure DevOps).
• Ability to work independently and meet deadlines.

Required skills

• C#
• .NET (8/9/10)
• ASP.NET Core
• Blazor WebAssembly
• REST API development
• SQL Server
• Entity Framework Core
• Clean Architecture
• CQRS (MediatR)
• Repository Pattern
• Microsoft Azure (App Service, Azure SQL, Entra ID/Azure AD, Application Insights, Azure DevOps)
• Power Automate / PowerApps (or willingness to learn)
• Git
• Agile development methodologies
• SOAP/WCF integration
• Webhooks
• Quartz.NET
• NSwag / OpenAPI
• React (basic exposure)
• Python (automation/scripting)