Luis Rafael B.

Senior Data Annotator & Trainer | LiDAR 3D & Polygon Specialist | CVAT

High-precision ground truth data specialist since 2019. With over 5 years of experience and a background as an Image Annotation Trainer (1.5 years), I deliver production-ready datasets with a built-in QA mindset. I specialize in complex tasks where attention to detail is non-negotiable. Technical Toolkit: 2D Annotation: Expertise in Polygons, Bounding Boxes, and Ellipses using CVAT, Dataloop, and Roboflow. 3D Annotation: Expert handling of LiDAR Point Clouds, Cuboid placement, and LiDAR-video fusion. Platforms: Highly proficient in Scale.ai, Labelbox, and custom internal tools. Specialized Projects: Robotic grasping (top-down view), Autonomous Driving, and Medical Imaging. Availability: Individual freelancer committed to 30–40 hours per week. I focus on autonomy and strict guideline adherence to reduce your team's QA workload. Please check my Profile Highlights for examples of my previous work.