Senior C# API Developer

Our client is a technology-focused organisation building next-generation, scalable, and distributed systems. The team works closely with strong technical leadership and fosters a culture of learning, experimentation, and continuous improvement, delivering robust backend services for enterprise-grade platforms. They are currently seeking a Senior C# API Developer to join their team on-site in Pretoria. This is a senior, hands-on role working closely with a Software Architect to design and build efficient, high-performance APIs and distributed services. Role Overview Design, develop, and maintain scalable RESTful APIs using C# and .NET Core Work in a focused team of API and Front-End developers on distributed systems Collaborate closely with the Software Architect to translate technical specifications into optimal implementations Apply clean architecture, SOLID principles, and best practices to ensure code quality and scalability Participate in Agile sprint planning, refinement, and prioritisation Mentor developers and actively share best practices Requirements Experience 710 years of professional software development experience Strong focus on building RESTful APIs using C# Technical Skills C# and .NET Core (expert level) Clean Architecture & SOLID principles Entity Framework GitHub & feature-based branching Unit and end-to-end testing Nice to Have Code modernisation for cloud environments API hardening practices CI/CD pipeline exposure Culture & Personal Attributes On-site role only (no hybrid or remote work) Non-smoker Humble, open to learning, and collaborative Strong problem-solving and analytical ability Excellent verbal and written communication skills Ability to self-prioritise sprint work Should you meet the requirements for this position, please email your CV to it.vacancy@stand-outstaffing.co.za. You can also contact the team on XXX-XXXX or alternatively you can visit our website www.stand-outstaffing.co.za Should you not hear from us within 3 days, please consider your application unsuccessful.