Timothy Kibii

Key Skills

Software

Appen

Top Subject Matter

No subject matter listed

Top Data Types

Geospatial Tiled Imagery

Image

Medical Dicom

Text

Video

Top Label Types

Classification

Diagnosis

Transcription

Freelancer Overview

I am an experienced data annotation and AI training contributor with a background in supporting large-scale AI projects for global platforms like Invisible Technologies and Outlier AI. My work includes data labeling, text categorization, research validation, and detailed evaluation of AI-generated responses across domains such as healthcare, education, and customer support. I have a strong track record of delivering high-quality, guideline-compliant annotations and providing actionable feedback to improve model performance. My skills in transcription, content moderation, and academic research further strengthen my ability to handle repetitive, detail-oriented tasks with accuracy and reliability. I am highly adaptable and thrive in remote, collaborative environments, consistently meeting deadlines while ensuring data quality and integrity.

Labeling Experience

AI Data Annotation & Content Review (Freelance / Remote)

AppenTextClassification

Labeled and categorized text data for AI training projects as a remote freelance annotator. Reviewed and rated AI-generated responses for relevance, safety, and clarity based on detailed guidelines. Ensured high dataset accuracy through quality checks and correction of labeling errors. • Maintained strict deadlines while performing data annotation tasks. • Conducted manual quality control for consistency. • Annotated text for classification and content evaluation. • Supported the development of AI models through structured data labeling.

Labeled and categorized text data for AI training projects as a remote freelance annotator. Reviewed and rated AI-generated responses for relevance, safety, and clarity based on detailed guidelines. Ensured high dataset accuracy through quality checks and correction of labeling errors. • Maintained strict deadlines while performing data annotation tasks. • Conducted manual quality control for consistency. • Annotated text for classification and content evaluation. • Supported the development of AI models through structured data labeling.

2023

Online Chat & Content Evaluation Specialist

AppenTextClassification

Evaluated and classified chat and content data for quality, tone, and relevance in online conversational environments. Flagged inappropriate or misleading content according to policy standards and assigned entries to predefined categories for language model training. Maintained confidentiality and high data privacy throughout project duration. • Performed quality rating and moderation for chat/text data. • Assisted with training of conversational AI language models. • Ensured compliance with annotation and labeling policies. • Delivered consistent evaluations over a two-year period.

Evaluated and classified chat and content data for quality, tone, and relevance in online conversational environments. Flagged inappropriate or misleading content according to policy standards and assigned entries to predefined categories for language model training. Maintained confidentiality and high data privacy throughout project duration. • Performed quality rating and moderation for chat/text data. • Assisted with training of conversational AI language models. • Ensured compliance with annotation and labeling policies. • Delivered consistent evaluations over a two-year period.

2022 - 2023

Education

Work History