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Wiseman Umanah

Wiseman Umanah

AI Data Annotator / AI Trainer

Nigeria flagLagos, Nigeria
$20.00/hrExpertTelusInternal Proprietary Tooling

Key Skills

Software

TelusTelus
Internal/Proprietary Tooling

Top Subject Matter

AI-generated content evaluation
Face detection & OCR image annotation
Audio/voice annotation (Paramango Project)

Top Data Types

TextText
ImageImage
AudioAudio
DocumentDocument

Top Task Types

Bounding BoxBounding Box
Evaluation/RatingEvaluation/Rating
Computer Programming/CodingComputer Programming/Coding
Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)
Fine-tuningFine-tuning
Text SummarizationText Summarization

Freelancer Overview

I’m an experienced AI Data Annotator with hands-on work across text, image, audio, and advertisement evaluation tasks. I have worked on projects involving AI response ranking, ads integrity and safety review, image annotation (including face detection and OCR), and voice labeling focused on naturalness and tone. I’m comfortable applying detailed guidelines to ensure consistency, accuracy, and high-quality outputs across large datasets. I specialize in evaluating AI-generated content by comparing multiple outputs, identifying inconsistencies, and making well-reasoned decisions. I’m highly detail-oriented, reliable, and able to adapt quickly to new workflows and evolving project requirements, with a strong focus on improving data quality and supporting the development of more accurate AI systems.

ExpertEnglish

Labeling Experience

Audio / Voice Annotation (Paramango Project)

Audio
In the Paramango Project, I conducted audio annotation tasks focused on evaluating AI-generated voice outputs. I assessed naturalness, tone, clarity, and contextual appropriateness of both speech and synthesized voices. Consistency and adherence to detailed guidelines were critical in this role.• Evaluated clarity and naturalness of AI-generated audio • Compared human-like vs mechanical delivery in speech systems • Assessed pronunciation and contextual correctness • Applied feedback to improve audio annotation quality

In the Paramango Project, I conducted audio annotation tasks focused on evaluating AI-generated voice outputs. I assessed naturalness, tone, clarity, and contextual appropriateness of both speech and synthesized voices. Consistency and adherence to detailed guidelines were critical in this role.• Evaluated clarity and naturalness of AI-generated audio • Compared human-like vs mechanical delivery in speech systems • Assessed pronunciation and contextual correctness • Applied feedback to improve audio annotation quality

2023 - Present

Image Annotation (Confidential Project)

ImageBounding Box
My experience in image annotation included labeling image datasets for face detection and conducting OCR-based labeling while maintaining strict confidentiality. I ensured precise bounding and accurate text extraction alignment on confidential projects. This work demanded high accuracy and strong attention to detail.• Labeled faces using bounding boxes on large image datasets • Performed OCR to extract and align text from images • Adapted annotation strategy to evolving project requirements • Maintained data confidentiality throughout project

My experience in image annotation included labeling image datasets for face detection and conducting OCR-based labeling while maintaining strict confidentiality. I ensured precise bounding and accurate text extraction alignment on confidential projects. This work demanded high accuracy and strong attention to detail.• Labeled faces using bounding boxes on large image datasets • Performed OCR to extract and align text from images • Adapted annotation strategy to evolving project requirements • Maintained data confidentiality throughout project

2023 - Present

AI Data Annotator / AI Trainer (Freelance & Contract)

Text
As an AI Data Annotator and AI Trainer, I evaluated advertisement content for integrity, safety, and relevance, ensuring compliance with platform standards. I also reviewed and classified ads for risk level, misleading content, and policy violations. My role involved ranking and comparing AI-generated text outputs to assess accuracy and usefulness.• Analyzed AI-generated text for safety and correctness • Provided structured feedback to improve model performance • Applied platform guidelines to classify ad content • Flagged sensitive or policy-violating ads

As an AI Data Annotator and AI Trainer, I evaluated advertisement content for integrity, safety, and relevance, ensuring compliance with platform standards. I also reviewed and classified ads for risk level, misleading content, and policy violations. My role involved ranking and comparing AI-generated text outputs to assess accuracy and usefulness.• Analyzed AI-generated text for safety and correctness • Provided structured feedback to improve model performance • Applied platform guidelines to classify ad content • Flagged sensitive or policy-violating ads

2023 - Present

Education

A

African Leadership Experience

Certificate, Software Engineering

Certificate
2023 - 2024

Work History

F

Femstyles

Full Stack Developer

Lagos
2024 - Present
N

Nano’s Gadget

Full Stack Developer

Lagos
2023 - 2023