Stella Achola

I am a detail-oriented data annotation specialist and AI trainer with a proven track record improving machine learning model accuracy through high-quality labeling, segmentation, sentiment analysis, and RLHF support. I maintain 98%+ accuracy rates while meeting rigorous deadlines in fast-paced, agile environments.

With a background in linguistics, translation, and language teaching, I bring strengths in NER, audio transcription, CAT tools, and computer vision annotation types such as bounding boxes, polygons, keypoints, and LiDAR semantic segmentation. I combine practical annotation expertise with training experience to elevate team performance and dataset quality.