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Stephen Oyagi

Stephen Oyagi

versatile image video annotator with 5+ years of experience

KENYA flag
nairobi, Kenya
$15.00/hrIntermediateAppenClickworkerCloudfactory

Key Skills

Software

AppenAppen
ClickworkerClickworker
CloudFactoryCloudFactory
iMeritiMerit
MindriftMindrift

Top Subject Matter

No subject matter listed

Top Data Types

ImageImage
TextText
VideoVideo

Top Label Types

Action Recognition
Emotion Recognition
Fine Tuning
Object Detection
Text Summarization

Freelancer Overview

* Trained AI and machine learning models by providing high-quality labeled datasets across text, speech, and image domains. * Performed linguistic and contextual evaluations to ensure AI outputs aligned with human expectations. *** Collaborated with data scientists and engineers to refine annotation guidelines and improve dataset quality. * Monitored AI performance metrics and provided insights for iterative improvement of models. Data Annotation Specialist | Tech Innovations Inc. Remote | Jul 2020 – Jul 2021 * Annotated large-scale datasets for natural language processing and computer vision projects. * Reviewed AI model predictions and provided corrective annotations for accuracy improvement. * Conducted quality assurance reviews to ensure compliance with client specifications. * Worked with multilingual datasets to support global AI model deployment. Freelance Transcriber & Annotator Remote | Jan 2018 – Jun 2020 * Delivered transcription and data annotation services for academic, media, and AI research projects

IntermediateSwahiliEnglish

Labeling Experience

No Data Labeling experience added

Stephen O. hasn’t added any AI Training or Data Labeling experience to their OpenTrain profile yet.

Education

C

Coursera/Stanford Online

Certificate, AI Data Training

Certificate
2022 - 2022
T

TranscribeAnywhere

Certificate, Transcription

Certificate
2021 - 2021

Work History

A

Acxiom AI Solutions

Trained ai

dallas
2021 - 2025