For employers

Hire this AI Trainer

Sign in or create an account to invite AI Trainers to your job.

Invite to Job
M

Moses Mwai

Data Annotation Specialist, CVAT.ai

KENYA flag
Nairobi, Kenya
$3.00/hrExpertCVATCloudfactoryRemotasks

Key Skills

Software

CVATCVAT
CloudFactoryCloudFactory
RemotasksRemotasks
Other

Top Subject Matter

General (for ML model training)
Healthcare Data & Medical Documentation
Autonomous Vehicles

Top Data Types

VideoVideo
ImageImage
DocumentDocument

Top Task Types

Object Detection
Classification
Bounding Box
Segmentation
Polygon
Red Teaming
Text Generation
Point Key Point
Entity Ner Classification
Polyline
Transcription
Evaluation Rating
Data Collection

Freelancer Overview

Data Annotation Specialist, CVAT.ai. Core strengths include CVAT, CloudFactory, and Remotasks. Education includes Certificate, Ajira Kenya (2022). AI-training focus includes data types such as Video and Image and labeling workflows including Object Detection, Classification, and Bounding Box.

ExpertSwahiliEnglish

Labeling Experience

Data Annotation Specialist

VideoSegmentation
Segment each video into individual actions — identifying exactly when each action starts and ends, down to a fraction of a second. Write short, natural language descriptions for each action (e.g., "Pick up the blue towel and place it on the shelf"). Label each segment with the correct action type and which hand(s) are being used. Screen videos for quality issues before annotating. Follow detailed project guidelines to ensure consistent, high-quality training data.

Segment each video into individual actions — identifying exactly when each action starts and ends, down to a fraction of a second. Write short, natural language descriptions for each action (e.g., "Pick up the blue towel and place it on the shelf"). Label each segment with the correct action type and which hand(s) are being used. Screen videos for quality issues before annotating. Follow detailed project guidelines to ensure consistent, high-quality training data.

2026 - Present
CVAT

Data Annotation Specialist, CVAT.ai

CVATVideoObject Detection
Provided video data annotation services to support machine learning model training. Drew 3D cuboids around objects to accurately detect and track them. Delivered high-quality, accurate video annotations for client projects. • Applied precise annotation standards to meet project expectations. • Collaborated with data scientists and engineering teams. • Ensured top-notch annotation quality and feedback. • Developed expertise in 3D object tracking within video data.

Provided video data annotation services to support machine learning model training. Drew 3D cuboids around objects to accurately detect and track them. Delivered high-quality, accurate video annotations for client projects. • Applied precise annotation standards to meet project expectations. • Collaborated with data scientists and engineering teams. • Ensured top-notch annotation quality and feedback. • Developed expertise in 3D object tracking within video data.

2024 - Present
CloudFactory

Junior Data Annotator, CloudFactory Kenya

CloudfactoryImageClassification
Labeled and annotated large volumes of image data items for machine learning. Ensured high data quality and accurate annotation standards were consistently maintained. Supported training of ML models by providing reliable annotated datasets. • Successfully labeled 50,000 images for object detection tasks. • Consistently applied annotation best practices. • Helped improve annotation process efficiency by 15%. • Participated in the professional development of annotation practices.

Labeled and annotated large volumes of image data items for machine learning. Ensured high data quality and accurate annotation standards were consistently maintained. Supported training of ML models by providing reliable annotated datasets. • Successfully labeled 50,000 images for object detection tasks. • Consistently applied annotation best practices. • Helped improve annotation process efficiency by 15%. • Participated in the professional development of annotation practices.

2021 - Present
Remotasks

Data Annotation tasker, Remotask

RemotasksImageBounding Box
Completed labeling projects across healthcare, self-driving vehicles, and agriculture. Annotated images for medical diagnostic and autonomous driving applications. Ensured accuracy and privacy for multi-domain AI projects. • Annotated medical images for disease detection algorithms. • Labeled roads and objects for self-driving car tasks. • Managed and secured data throughout annotation workflow. • Used a range of annotation tools based on task needs.

Completed labeling projects across healthcare, self-driving vehicles, and agriculture. Annotated images for medical diagnostic and autonomous driving applications. Ensured accuracy and privacy for multi-domain AI projects. • Annotated medical images for disease detection algorithms. • Labeled roads and objects for self-driving car tasks. • Managed and secured data throughout annotation workflow. • Used a range of annotation tools based on task needs.

2018 - 2024

AI Image Labeller, Sahaara

OtherImageBounding Box
Collaborated with teams to clarify project-specific annotation requirements. Used industry-standard tools to annotate images, videos, and text. Delivered consistent, precise object, bounding box, and keypoint labeling. • Ensured accuracy and quality of labeled data. • Supported multiple annotation types as needed. • Managed data across diverse project domains. • Utilized current best practices for labeling tasks.

Collaborated with teams to clarify project-specific annotation requirements. Used industry-standard tools to annotate images, videos, and text. Delivered consistent, precise object, bounding box, and keypoint labeling. • Ensured accuracy and quality of labeled data. • Supported multiple annotation types as needed. • Managed data across diverse project domains. • Utilized current best practices for labeling tasks.

2023 - 2023

Education

A

Ajira Kenya

Certificate, Data Science

Certificate
2022 - 2022

Work History

F

Fuzu

Operations Associate

Nairobi
2025 - Present