DENIS MWANGI

I am a detail-oriented and highly organized Data Annotation Specialist with three years of experience in labeling, tagging, and annotating data for machine learning and AI models. My expertise lies in handling large datasets and utilizing various annotation tools to maintain high accuracy under tight deadlines. I am passionate about contributing to the development of AI systems through meticulous data processing and quality assurance.

In my role at Samasource, I successfully annotated and labeled over 100 data samples, including images, text, and audio, to train AI models. I utilized tools like CVAT to mark objects, classify text, and transcribe audio files. My collaboration with the QA team ensured that we achieved over 98% accuracy and compliance with annotation guidelines, while also participating in refining annotation standards and documentation.