Johannesburg: .Net Developer

We are seeking a highly skilled and experienced Backend Developer (.NET) to join our dynamic engineering team. The ideal candidate is passionate about building clean, scalable, and reliable backend systems, and has strong expertise across the .NET ecosystem, PostgreSQL, and modern architectural patterns. In this role, you will collaborate closely with cross-functional teams, contribute to technical design decisions, and take full ownership of features from concept to deployment. If you enjoy solving complex problems, writing high-quality code, and working in a fast-paced environment, we would love to hear from you.  Responsibilities Design, develop, and maintain backend services using C# and the .NET framework. Implement data access layers using Entity Framework, with PostgreSQL as the primary database. Apply CQRS and SOLID principles to ensure scalable, maintainable, and testable code. Use the Mediator design pattern (e.g., MediatR) to structure request handling and domain logic. Design and document RESTful APIs using OpenAPI/Swagger, ensuring clear, accurate, and up-to-date API contracts. Collaborate closely with other engineers to design new features, review code, and enhance existing software. Take end-to-end ownership of features — from design and implementation to deployment and post-release support. Requirements Strong proficiency in C# and the .NET ecosystem (minimum 5 years). Experience with Entity Framework and PostgreSQL (minimum 5 years). Solid understanding of CQRS and SOLID design principles. Familiarity with the Mediator design pattern (e.g., MediatR). Experience designing and documenting RESTful APIs using OpenAPI/Swagger, including request/response models and error handling (minimum 5 years). Proven ability to reason through complex architectural and design decisions. Self-driven, proactive, and passionate about writing high-quality, well-structured software.