Data Labelling Specialist & AI Annotation Contributor
As a Data Labelling Specialist and AI Annotation Contributor, I performed annotation tasks across image, text, audio, and video datasets for machine learning model training. My responsibilities included executing annotation projects on platforms like Scale AI, Appen, and Toloka, using software such as CVAT, Labelbox, Prodigy, and V7 Darwin. I also ensured quality and consistency by reviewing and QA-checking other contributors' work and collaborating with ML engineers to refine guidelines. • Annotated datasets using bounding boxes, polygons, segmentation masks, keypoints, and performed NER tagging, sentiment, and intent classification. • Applied ontology-based schemas and followed annotation guidelines to maintain inter-annotator agreement. • Managed annotation queues, tracked task metrics, and documented labeling decisions. • Participated in cross-functional collaboration to clarify edge cases and improve annotation standards.