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Ebenezer Ekpenyong

Ebenezer Ekpenyong

AI Data Annotator

Nigeria flagPort-Harcourt, Nigeria
$10.00/hrIntermediateOtherLabel StudioLabelbox

Key Skills

Software

Other
Label StudioLabel Studio
LabelboxLabelbox

Top Subject Matter

Natural Language Processing
Computer Vision
Speech Recognition

Top Data Types

TextText
ImageImage
AudioAudio
VideoVideo

Top Task Types

Classification
Entity Ner Classification
Transcription
Object Detection
Emotion Recognition
Tracking
Text Generation
RLHF

Freelancer Overview

I'm a detail-oriented AI professional with 3 years of experience in data annotation, audio/visual labelling, and language transcription, across complex workflows, research, and quality-focused execution. Skilled in localization, adapting AI content to cultural and linguistic contexts for global usability. Also experienced in training and improving AI models through evaluation, feedback, and content refinement. My core strengths include AI training across data types such as text, image, and audio, with expertise in labelling workflows including classification, named entity recognition (NER), and transcription.

IntermediateEnglish

Labeling Experience

AI Trainer

OtherTextText GenerationRLHF
In my role as an AI Trainer, I evaluated, rated, and refined outputs from large language models to improve reasoning, accuracy, and tone. I provided structured feedback and quality scoring for research datasets powering conversational AI, summarization, and classification systems. My work directly contributed to model fine-tuning and the enhancement of AI responsiveness. • Evaluated and improved outputs from large language models. • Rated, rewrote, and refined AI-generated text for accuracy and tone. • Contributed structured feedback for dataset research and model training. • Supported enhancements in conversational AI, summarization, and classification models.

In my role as an AI Trainer, I evaluated, rated, and refined outputs from large language models to improve reasoning, accuracy, and tone. I provided structured feedback and quality scoring for research datasets powering conversational AI, summarization, and classification systems. My work directly contributed to model fine-tuning and the enhancement of AI responsiveness. • Evaluated and improved outputs from large language models. • Rated, rewrote, and refined AI-generated text for accuracy and tone. • Contributed structured feedback for dataset research and model training. • Supported enhancements in conversational AI, summarization, and classification models.

2024 - Present

Language Transcriptor

OtherAudioTranscription
As a Language Transcriptor, I transcribed English audio into precise text datasets for use in voice recognition and captioning AI projects. I maintained linguistic accuracy, clarity, and tone retention, working with various audio sources such as interviews, podcasts, and training data. Strict adherence to confidentiality and data security protocols was essential in this role. • Converted English audio recordings into high-quality text datasets. • Ensured accuracy and clarity in transcription of diverse audio types. • Supported voice recognition and automatic captioning AI systems. • Maintained compliance with strict data confidentiality requirements.

As a Language Transcriptor, I transcribed English audio into precise text datasets for use in voice recognition and captioning AI projects. I maintained linguistic accuracy, clarity, and tone retention, working with various audio sources such as interviews, podcasts, and training data. Strict adherence to confidentiality and data security protocols was essential in this role. • Converted English audio recordings into high-quality text datasets. • Ensured accuracy and clarity in transcription of diverse audio types. • Supported voice recognition and automatic captioning AI systems. • Maintained compliance with strict data confidentiality requirements.

2024 - Present

Localization Expert

OtherTextEntity Ner Classification
As a Localization Expert, I adapted text, UI elements, and AI prompts to align with cultural and linguistic nuances for global deployment. I performed cultural relevance checks and idiomatic expression reviews to enhance the naturalness of AI-generated content. Regional context and idiomatic language support were integral to my responsibilities. • Localized text and UI components for multilingual AI systems. • Evaluated and improved cultural relevance and natural language use. • Reviewed and adapted AI content for local markets and global users. • Assisted machine learning deployments in diverse linguistic settings.

As a Localization Expert, I adapted text, UI elements, and AI prompts to align with cultural and linguistic nuances for global deployment. I performed cultural relevance checks and idiomatic expression reviews to enhance the naturalness of AI-generated content. Regional context and idiomatic language support were integral to my responsibilities. • Localized text and UI components for multilingual AI systems. • Evaluated and improved cultural relevance and natural language use. • Reviewed and adapted AI content for local markets and global users. • Assisted machine learning deployments in diverse linguistic settings.

2023 - Present

Visual & Audio Annotator

OtherImageEmotion RecognitionObject Detection
As a Visual & Audio Annotator, I specialized in labeling and categorizing both visual and auditory data to improve AI perception models. I was responsible for annotating facial expressions, gestures, object tracking, and ambient sounds for emotion detection and multimedia AI tasks. I regularly reviewed and refined annotation outputs from automated systems to ensure high precision and context alignment. • Labeled visual and audio data for emotion and object detection tasks. • Annotated facial expressions, gestures, objects, and ambient environmental sounds. • Performed accuracy reviews on automated annotation system outputs. • Supported multimedia AI model improvement and training for perception tasks.

As a Visual & Audio Annotator, I specialized in labeling and categorizing both visual and auditory data to improve AI perception models. I was responsible for annotating facial expressions, gestures, object tracking, and ambient sounds for emotion detection and multimedia AI tasks. I regularly reviewed and refined annotation outputs from automated systems to ensure high precision and context alignment. • Labeled visual and audio data for emotion and object detection tasks. • Annotated facial expressions, gestures, objects, and ambient environmental sounds. • Performed accuracy reviews on automated annotation system outputs. • Supported multimedia AI model improvement and training for perception tasks.

2023 - Present

AI Data Annotator

OtherTextClassificationEntity Ner Classification
As an AI Data Annotator, I performed annotation on text, image, and audio data for the training and validation of AI models in NLP and computer vision domains. I ensured consistently high accuracy through rigorous quality checks and followed detailed annotation guidelines for multilingual datasets. My work directly supported dataset development for various capabilities, including speech recognition and natural language understanding. • Labeled and validated text, image, and audio data for AI model training. • Conducted quality checks maintaining over 95% accuracy in annotations. • Collaborated on international, multilingual AI projects and met tight deadlines. • Enhanced data for machine learning and natural language applications.

As an AI Data Annotator, I performed annotation on text, image, and audio data for the training and validation of AI models in NLP and computer vision domains. I ensured consistently high accuracy through rigorous quality checks and followed detailed annotation guidelines for multilingual datasets. My work directly supported dataset development for various capabilities, including speech recognition and natural language understanding. • Labeled and validated text, image, and audio data for AI model training. • Conducted quality checks maintaining over 95% accuracy in annotations. • Collaborated on international, multilingual AI projects and met tight deadlines. • Enhanced data for machine learning and natural language applications.

2023 - Present

Education

C

Coursera

Certificate, Cybersecurity

Certificate
2023 - 2024
R

Rivers State University

Certificate, Python Programming

Certificate
2022 - 2022

Work History

H

HPFL (Health Products Farms Limited)

Quality Control Analyst

Lagos
2022 - 2023
F

Freelance

Website Development Instructor

Port-Harcourt
2021 - 2022