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Festus Kimathi

Festus Kimathi

Data Annotator & AI Training Specialist (Freelance)

Kenya flagNairobi, Kenya
$15.00/hrExpertOther

Key Skills

Software

Other

Top Subject Matter

AI Training & Data Annotation
Legal Services & Contract Review
Regulatory Compliance & Risk Analysis

Top Data Types

TextText
DocumentDocument

Top Task Types

TranscriptionTranscription
Data CollectionData Collection
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Freelancer Overview

Data Annotator & AI Training Specialist (Freelance). Brings 10+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Other. Education includes Certificate in AI Career Essentials, ALX Africa (2024) and Bachelor of Education, Machakos University (2024). AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

ExpertEnglish

Labeling Experience

Data Annotator & AI Training Specialist (Freelance)

OtherText
I annotated and labeled large volumes of text for machine learning training pipelines as a freelance Data Annotator & AI Training Specialist. My responsibilities included evaluating and rating AI-generated responses for accuracy, tone, and instruction adherence. I also performed prompt engineering, quality assurance, and output evaluation tasks for model improvement and error reduction. • Consistently delivered high-quality annotated data under tight deadlines • Identified and corrected errors, inconsistencies, and data patterns for improved model reliability • Collaborated on content moderation tasks with nuanced judgment and policy compliance • Maintained accuracy and compliance with detailed annotation guidelines.

I annotated and labeled large volumes of text for machine learning training pipelines as a freelance Data Annotator & AI Training Specialist. My responsibilities included evaluating and rating AI-generated responses for accuracy, tone, and instruction adherence. I also performed prompt engineering, quality assurance, and output evaluation tasks for model improvement and error reduction. • Consistently delivered high-quality annotated data under tight deadlines • Identified and corrected errors, inconsistencies, and data patterns for improved model reliability • Collaborated on content moderation tasks with nuanced judgment and policy compliance • Maintained accuracy and compliance with detailed annotation guidelines.

2020 - Present

Education

A

ALX Africa

Certificate in AI Career Essentials, Artificial Intelligence

Certificate in AI Career Essentials
2024 - 2024
M

Machakos University

Bachelor of Education, Education

Bachelor of Education
2020 - 2024

Work History

F

Freelance

Senior Academic Writer & Research Consultant

Nairobi
2017 - Present