Chepkorir B.

Key Skills

Software

Data Annotation Tech

CVAT

CrowdSource

AWS SageMaker

Anno-Mage

Appen

Argilla

Top Subject Matter

FINANCE

HEALTHCARE

ECOMMERCE

Top Data Types

Image

Text

Video

Top Task Types

Polygon

Bounding Box

Data Collection

Classification

Freelancer Overview

I have solid experience in data labeling and AI training data preparation, with a focus on accuracy and efficiency. My work has included annotating images, text, and audio for machine learning projects, using tools like Roboflow, CVAT, and Labelbox. I’ve handled both bounding box and polygon annotations, ensuring precise labeling for complex objects and maintaining high accuracy rates through consistent quality checks.

Labeling Experience

ai anatator

ImagePolygon

In one of my recent projects, the scope involved preparing large-scale image datasets for computer vision tasks, specifically object detection and segmentation. The data labeling tasks required both bounding box and polygon annotations to capture objects with irregular shapes. This meant carefully outlining each object to ensure the dataset provided precise training examples for AI models. I worked across thousands of images, applying consistent annotation standards and leveraging tools like Roboflow and CVAT to streamline the process.

2025 - 2025

Education

Work History