Christopher Nganga

Key Skills

Software

LabelImg

CVAT

Labelbox

Supervisely

Top Subject Matter

General computer vision and speech recognition datasets

General machine learning datasets

Legal Services & Contract Review

Top Data Types

Image

Text

Document

Top Task Types

Bounding Box

Classification

Freelancer Overview

AI Data Annotation Specialist. Core strengths include LabelImg, CVAT, and Labelbox. Education includes Bachelor of Science, University of Nairobi (2019). AI-training focus includes data types such as Image and labeling workflows including Bounding Box and Classification.

Labeling Experience

AI Data Annotation Specialist

LabelimgImageBounding Box

As an AI Data Annotation Specialist, I annotated images using bounding boxes, polygons, and segmentation techniques. I labeled video datasets frame-by-frame for object detection and tracking tasks, and performed audio transcription and tagging for speech recognition models. I maintained high annotation accuracy and conducted quality checks across large datasets. • Annotated images for computer vision tasks using bounding boxes and polygons. • Labeled and tracked objects in video datasets frame-by-frame. • Transcribed and tagged audio data for AI models. • Conducted annotation quality reviews and corrected errors.

As an AI Data Annotation Specialist, I annotated images using bounding boxes, polygons, and segmentation techniques. I labeled video datasets frame-by-frame for object detection and tracking tasks, and performed audio transcription and tagging for speech recognition models. I maintained high annotation accuracy and conducted quality checks across large datasets. • Annotated images for computer vision tasks using bounding boxes and polygons. • Labeled and tracked objects in video datasets frame-by-frame. • Transcribed and tagged audio data for AI models. • Conducted annotation quality reviews and corrected errors.

2023 - Present

Data Labeling Assistant

LabelboxImageClassification

As a Data Labeling Assistant, I assisted in labeling datasets for machine learning projects and used annotation tools to classify and tag images and videos. I reviewed and validated labeled data for quality assurance and collaborated with team members to meet project deadlines. I contributed to the consistency and accuracy of project datasets. • Classified and tagged images for ML model training. • Supported video labeling and annotation tasks. • Validated quality and accuracy of labeled data. • Collaborated with team for project delivery.

As a Data Labeling Assistant, I assisted in labeling datasets for machine learning projects and used annotation tools to classify and tag images and videos. I reviewed and validated labeled data for quality assurance and collaborated with team members to meet project deadlines. I contributed to the consistency and accuracy of project datasets. • Classified and tagged images for ML model training. • Supported video labeling and annotation tasks. • Validated quality and accuracy of labeled data. • Collaborated with team for project delivery.

2022 - 2022

Education

Work History