James Nnaji

Key Skills

Software

Appen

Top Subject Matter

Chatbots & LLMs

Computer Vision

Audio Recognition

Top Data Types

Text

Image

Audio

Top Task Types

Prompt Response Writing SFT

Classification

Freelancer Overview

Freelance AI Trainer (Chatbot Prompt Engineering). Core strengths include Appen. Education includes Bachelor of Science, Ebonyi State University (2022). AI-training focus includes data types such as Text, Image, and Audio and labeling workflows including Prompt + Response Writing (SFT) and Classification.

Labeling Experience

Freelance AI Trainer (Audio Annotation & Classification)

AppenAudioClassification

I categorized and annotated audio data to support AI model training. My work facilitated improved speech and audio recognition for machine learning outcomes. Annotation tasks were completed within strict deadlines to maintain data pipeline efficiency. • Labeled audio clips for relevant features or categories • Maintained accuracy and reliability in audio labeling • Participated in multiple global audio annotation projects • Followed audio labeling guidelines and project protocols

I categorized and annotated audio data to support AI model training. My work facilitated improved speech and audio recognition for machine learning outcomes. Annotation tasks were completed within strict deadlines to maintain data pipeline efficiency. • Labeled audio clips for relevant features or categories • Maintained accuracy and reliability in audio labeling • Participated in multiple global audio annotation projects • Followed audio labeling guidelines and project protocols

2022 - Present

Freelance AI Trainer (Image Annotation & Classification)

AppenImageClassification

I labeled and tagged images for AI model training on remote, global projects. Quality and consistency were prioritized to ensure effective model learning from annotated datasets. My efforts helped improve the accuracy of computer vision systems. • Classified, tagged, and annotated images across categories • Applied consistent labeling standards throughout each batch • Used AI annotation tools for efficient, accurate results • Contributed to machine learning model development in vision tasks

I labeled and tagged images for AI model training on remote, global projects. Quality and consistency were prioritized to ensure effective model learning from annotated datasets. My efforts helped improve the accuracy of computer vision systems. • Classified, tagged, and annotated images across categories • Applied consistent labeling standards throughout each batch • Used AI annotation tools for efficient, accurate results • Contributed to machine learning model development in vision tasks

2022 - Present

Freelance AI Trainer (Chatbot Prompt Engineering)

AppenTextPrompt Response Writing SFT

As a Freelance AI Trainer, I developed and tested prompts to improve chatbot response accuracy. I provided structured feedback to enhance AI response quality and consistency in conversational outputs. My work directly contributed to the optimization of language models and the overall user experience. • Designed effective prompts for multiple chatbot scenarios • Conducted systematic evaluation and feedback of AI-generated text • Collaborated remotely on global data labeling projects • Ensured high-quality standards and accuracy in every annotation

As a Freelance AI Trainer, I developed and tested prompts to improve chatbot response accuracy. I provided structured feedback to enhance AI response quality and consistency in conversational outputs. My work directly contributed to the optimization of language models and the overall user experience. • Designed effective prompts for multiple chatbot scenarios • Conducted systematic evaluation and feedback of AI-generated text • Collaborated remotely on global data labeling projects • Ensured high-quality standards and accuracy in every annotation

2022 - Present

Education

Work History