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Excellence Nwadador

Excellence Nwadador

AI Trainer (Data Annotator)

Nigeria flagBenin City, Nigeria
$10.00/hrEntry LevelOther

Key Skills

Software

Other

Top Subject Matter

AI Data Annotation & Model Training
Voice Recording & Speech Data Training for AI Systems
Legal Services & Contract Review

Top Data Types

TextText
AudioAudio
VideoVideo

Top Task Types

Classification
Audio Recording
Evaluation Rating
RLHF

Freelancer Overview

AI Trainer (Data Annotator). Brings 5+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Other. Education includes Bachelor of Science, University of Benin (2019) and Certificate in Content Writing and Copywriting, Talking Pen Academy (2022). AI-training focus includes data types such as Text and Audio and labeling workflows including Classification and Audio Recording.

Entry LevelEnglish

Labeling Experience

AI Trainer (Voice and Speech Data)

OtherAudioAudio Recording
As an AI Trainer for speech data, I recorded voice samples in diverse tones, accents, and intonations to enhance voice AI models. I provided both scripted and unscripted speech to capture authentic language usage. I reviewed and re-recorded audio samples to ensure quality and helped improve pronunciation and emotional accuracy for AI systems. • Supplied conversational, expressive, and regional speech data to improve AI voice recognition accuracy. • Participated in iterative processes to meet evolving quality and realism standards for audio data. • Supported the training of AI systems in natural language pronunciation and emotional context. • Helped engineers optimize datasets for more human-like AI voice responses.

As an AI Trainer for speech data, I recorded voice samples in diverse tones, accents, and intonations to enhance voice AI models. I provided both scripted and unscripted speech to capture authentic language usage. I reviewed and re-recorded audio samples to ensure quality and helped improve pronunciation and emotional accuracy for AI systems. • Supplied conversational, expressive, and regional speech data to improve AI voice recognition accuracy. • Participated in iterative processes to meet evolving quality and realism standards for audio data. • Supported the training of AI systems in natural language pronunciation and emotional context. • Helped engineers optimize datasets for more human-like AI voice responses.

2025 - Present

AI Trainer (Data Annotator)

OtherVideoClassification
In this role, I accurately labeled, tagged, and categorized large datasets to support AI model development. My tasks included reviewing and correcting annotations to achieve high accuracy and reliability. I followed detailed annotation guidelines to ensure consistently high-quality training data for machine learning systems. • Performed data annotation and classification tasks to support supervised learning initiatives. • Ensured data cleanliness, structure, and consistency throughout large-scale projects. • Applied error analysis to identify and resolve data inconsistencies quickly.

In this role, I accurately labeled, tagged, and categorized large datasets to support AI model development. My tasks included reviewing and correcting annotations to achieve high accuracy and reliability. I followed detailed annotation guidelines to ensure consistently high-quality training data for machine learning systems. • Performed data annotation and classification tasks to support supervised learning initiatives. • Ensured data cleanliness, structure, and consistency throughout large-scale projects. • Applied error analysis to identify and resolve data inconsistencies quickly.

2025 - Present

Education

T

Talking Pen Academy

Certificate in Content Writing and Copywriting, Content Writing and Copywriting

Certificate in Content Writing and Copywriting
2022 - 2022
U

University of Benin

Bachelor of Science, Plant Biology and Biotechnology

Bachelor of Science
2015 - 2019

Work History

N

N/A

Web Content Writer

Lagos
2025 - 2025
C

Cecy Health Consult Ltd.

SEO Content Writer / Copywriter

Abuja
2024 - 2024