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Obiajulu Obioha

Obiajulu Obioha

AI Data Labeling & Annotation Specialist

NIGERIA flag
Rivers, Nigeria
$25.00/hrIntermediateTolokaMindriftMighty AI

Key Skills

Software

TolokaToloka
MindriftMindrift
Mighty AIMighty AI
Micro1
MercorMercor
Axiom AI

Top Subject Matter

AI Training Project - Multimodal Image Captioning Dataset
Computer Vision Dataset Project - Retail Product Recognition Dataset
Marketing AI Training Dataset - Ad Creative Performance Image Dataset

Top Data Types

ImageImage
VideoVideo
TextText

Top Label Types

Bounding Box
Segmentation
Polygon
Text Generation
Text Summarization

Freelancer Overview

I am a data-driven digital strategist and AI workflow specialist with over 4 years of experience in automating and optimizing data processes for digital marketing and AI projects. My background includes designing and deploying 20+ AI-powered workflow automations to streamline content analysis, reporting, and structured evaluation systems, resulting in significant improvements in data quality and operational efficiency. I have a strong track record in building structured prompt systems and standardized evaluation frameworks, which improved AI output accuracy and consistency across projects. My expertise spans data annotation, quality assurance, pattern recognition, and performance benchmarking, with hands-on experience in analyzing large datasets, identifying trends, and ensuring high-quality training data for AI models. I am skilled in cross-functional collaboration and thrive in environments that require precision, analytical decision-making, and continuous process improvement.

IntermediateFrenchEnglish

Labeling Experience

AI Data Labeling & Annotation Specialist

ImageBounding Box
- Labeled and annotated 45,000+ images across multiple datasets used for training computer vision and multimodal AI models. - Produced structured image descriptions, contextual captions, and object-level annotations to improve model accuracy and semantic understanding. - Maintained 97%+ annotation accuracy through adherence to strict dataset guidelines and quality assurance checks. - Evaluated image datasets for cultural relevance, contextual clarity, and visual integrity, ensuring training data met international content standards.

- Labeled and annotated 45,000+ images across multiple datasets used for training computer vision and multimodal AI models. - Produced structured image descriptions, contextual captions, and object-level annotations to improve model accuracy and semantic understanding. - Maintained 97%+ annotation accuracy through adherence to strict dataset guidelines and quality assurance checks. - Evaluated image datasets for cultural relevance, contextual clarity, and visual integrity, ensuring training data met international content standards.

2023 - Present

Education

U

University of Nigeria, Nsukka

Bachelor of Economics, Economics

Bachelor of Economics
2015 - 2019
U

University of Nigeria, Nsukka

Bachelor of Economics, Economics

Bachelor of Economics
2014 - 2019

Work History

O

Optimus Digital Labs

AI Workflow & Automation Specialist

Enugu
2023 - Present
F

Freelance

Data Analytics & Performance Consultant

Enugu
2021 - 2023