Nkosazana Mashaba

I am an AI Trainer and data-focused professional with a BSc in Mathematics and Computer Science from the University of Limpopo. I combine formal training in AI, databases and time-series analysis with hands-on experience reviewing and improving model outputs.

As a freelance AI Trainer I reviewed and corrected AI-generated responses, tagged and categorized datasets, evaluated model performance, and used tools such as ChatGPT, Excel, and annotation platforms to improve model understanding of human language and context.

Previously I supported learners as a Maths and Science Assistant at Penreach, where I explained difficult concepts, assisted with homework and strengthened communication and teamwork through daily support sessions.

I am passionate about continuous learning, applying rigorous data labeling and evaluation practices, and contributing to AI and data-driven projects that benefit from careful analysis and clear communication.