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Alphonce Oluoch

Freelance AI Data Annotator and AI Trainer

Kenya flagNairobi, Kenya
$50.00/hrExpertLabelbox

Key Skills

Software

LabelboxLabelbox

Top Subject Matter

AI dataset annotation and validation

Top Data Types

Computer Code ProgrammingComputer Code Programming
TextText
DocumentDocument
ImageImage

Top Task Types

Bounding BoxBounding Box
SegmentationSegmentation

Freelancer Overview

Freelance AI Data Annotator and AI Trainer. Brings 1+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Labelbox. Education includes Bachelor of Science, Kirinyaga University (2025). AI-training focus includes data types such as Image and labeling workflows including Bounding Box.

ExpertEnglish

Labeling Experience

Labelbox

Audio Transcription & Data Annotation for AI Training

LabelboxImageEvaluation RatingBounding Box
I worked on an imagery data annotation project focused on preparing visual datasets for AI model training and evaluation. The project involved reviewing and labeling images based on predefined guidelines, including identifying objects, categorizing visual elements, and ensuring accurate tagging for machine learning applications. I also performed image classification and basic bounding tasks to support model accuracy in recognizing patterns and objects. The dataset consisted of a large volume of images that required consistent and precise labeling. I ensured high-quality outputs by carefully following annotation standards, maintaining labeling consistency, and conducting regular quality checks to minimize errors. I also reviewed previously labeled data to correct inconsistencies and improve overall dataset reliability. Throughout the project, I demonstrated strong attention to detail, accuracy, and the ability to work efficiently under time constraints. I adhered strictly to quality assurance guidelines, including validation of annotations, cross-checking labels, and maintaining data integrity. This contributed to improving the performance and reliability of AI models trained on the dataset.

I worked on an imagery data annotation project focused on preparing visual datasets for AI model training and evaluation. The project involved reviewing and labeling images based on predefined guidelines, including identifying objects, categorizing visual elements, and ensuring accurate tagging for machine learning applications. I also performed image classification and basic bounding tasks to support model accuracy in recognizing patterns and objects. The dataset consisted of a large volume of images that required consistent and precise labeling. I ensured high-quality outputs by carefully following annotation standards, maintaining labeling consistency, and conducting regular quality checks to minimize errors. I also reviewed previously labeled data to correct inconsistencies and improve overall dataset reliability. Throughout the project, I demonstrated strong attention to detail, accuracy, and the ability to work efficiently under time constraints. I adhered strictly to quality assurance guidelines, including validation of annotations, cross-checking labels, and maintaining data integrity. This contributed to improving the performance and reliability of AI models trained on the dataset.

2023 - Present

Education

K

Kirinyaga University

Bachelor of Science, Computer Science

Bachelor of Science
2021 - 2025
N

Ndiru Mixed Secondary School

Kenya Certificate of Secondary Education, General Secondary Education

Kenya Certificate of Secondary Education
2017 - 2021

Work History

W

Walter Reed

IT Intern

Nairobi
2023 - 2023
K

Kombewa County Referral Hospital

IT Intern

Kisumu
2023 - 2023