Ten

Key Skills

Freelancer Overview

I have hands-on experience as a Data Annotation Specialist with a Quality Control focus at Visia.ai, where I reviewed over 150,000 annotations per month while maintaining a 95%+ quality pass rate. My work centered on annotating complex real-world datasets for smart waste management and environmental AI systems labeling objects such as loose trash, recyclable materials including plastic bottles, paper, and aggregate, as well as vehicles and people in belt conveyor environments. I worked extensively with CVAT using segmentation masks, polygons, and bounding boxes, producing over 1,000 polygons and 3,000+ bounding boxes per day while strictly following detailed annotation guidelines. Beyond annotation, I contributed to the quality and consistency of the entire pipeline. I developed SOPs and training guides, mentored and onboarded new annotators on best practices for complex image segmentation, and collaborated directly with QA leads, project managers, and AI engineers to ensure labeled datasets met project specifications and delivery deadlines. I also identified edge cases and flagged tool limitations to continuously improve annotation accuracy and workflow efficiency.

Labeling Experience

Education

Work History