Senior C# & Mobile Developer

Hi-Tech Recruitment – IT · Gauteng

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Reference: CPT006144-JB-1

Senior C # &Mobile Developer Sandton R 800 - R 1000 0000 PA

Dig deeper than code. Build software that powers industry Duties & Responsibilities

We are seeking an experienced Senior C# & Mobile Developer to join a high-performing software development team responsible for designing, developing, and maintaining enterprise-grade applications across desktop, web, and mobile platforms. This role is ideal for a hands-on developer with deep expertise in modern Microsoft technologies, a passion for clean code, and the ability to work across both legacy and modern application environments.

Key Responsibilities

  • Develop and maintain C# desktop, web, and mobile applications.
  • Enhance existing Windows Forms applications and contribute to modern .NET solutions.
  • Build applications using ASP.NET Core, Blazor, .NET MAUI, and .NET Core.
  • Design and develop database solutions using SQL Server, SQLite, and Entity Framework.
  • Develop and maintain REST API integrations and data services.
  • Build offline-capable applications with synchronization capabilities.
  • Troubleshoot, optimize, and improve application performance and reliability.
  • Participate in solution design, technical planning, and application architecture.
  • Produce technical documentation and support software deployments.

Essential Requirements

  • Degree in Computer Science, Computer Engineering, Information Systems, or related discipline.
  • 10+ years of professional C# development experience.
  • Strong experience with:
  • C#
  • .NET Core / .NET 8+
  • ASP.NET Core
  • Blazor
  • .NET MAUI
  • Entity Framework / EF Core
  • SQL Server
  • SQLite
  • REST APIs
  • LINQ

Technical Expertise

  • Full-stack development across desktop, web, and mobile platforms.
  • Database design and T-SQL development.
  • JSON-based integrations and API development.
  • Asynchronous programming and multi-threaded applications.
  • Responsive UI development using Razor, HTML, and CSS.
  • Application performance tuning and troubleshooting.
  • Git-based source control and software development best practices.

Package & Remuneration

R 800 000 - R 1 000 000 - Annually

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