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Hannah Muthoni

Hannah Muthoni

Trust & Safety / Content Moderator (Freelance)

KENYA flag
Nairobi, Kenya
$15.00/hrIntermediateClickworkerData Annotation TechCVAT

Key Skills

Software

ClickworkerClickworker
Data Annotation TechData Annotation Tech
CVATCVAT
Google Cloud Vertex AIGoogle Cloud Vertex AI
LabelboxLabelbox
MercorMercor
TolokaToloka
OneFormaOneForma
AppenAppen

Top Subject Matter

Online content moderation and digital safety

Top Data Types

TextText
VideoVideo
ImageImage

Top Task Types

Classification
Transcription
Question Answering
Text Generation

Freelancer Overview

I have experience working with AI training data through tasks such as data annotation, labeling, and quality review across text, image, and conversational datasets. My work has involved categorizing content, tagging entities, evaluating model outputs, and ensuring consistency with detailed annotation guidelines. I’ve contributed to improving dataset accuracy by identifying edge cases, resolving ambiguities, and maintaining high inter-annotator agreement. Additionally, I’m comfortable using annotation tools and adapting quickly to new project requirements, whether it’s sentiment analysis, intent classification, or content moderation. What sets me apart is my strong attention to detail, ability to follow complex guidelines, and commitment to delivering high-quality, reliable data. I bring analytical thinking to spot patterns and inconsistencies, along with clear communication when collaborating with teams or providing feedback. My adaptability and focus on accuracy help ensure that the training data I work on directly contributes to building more effective and trustworthy AI models.

IntermediateArabicEnglish

Labeling Experience

Handshake Ai

VideoBounding Box
Performed data labeling and annotation tasks, including drawing bounding boxes around objects and classifying images based on predefined categories. Followed detailed annotation guidelines to ensure consistency and accuracy across datasets, including handling occlusions and varying image conditions. Conducted quality checks and contributed to improving dataset reliability by identifying and correcting labeling errors.

Performed data labeling and annotation tasks, including drawing bounding boxes around objects and classifying images based on predefined categories. Followed detailed annotation guidelines to ensure consistency and accuracy across datasets, including handling occlusions and varying image conditions. Conducted quality checks and contributed to improving dataset reliability by identifying and correcting labeling errors.

2025 - Present

Trust & Safety / Content Moderator (Freelance)

TextClassification
As a freelance Trust & Safety / Content Moderator, I reviewed and classified user-generated text content to ensure compliance with platform policies. This role involved making judgment calls on the appropriateness, risk level, and adherence of content to community guidelines. I consistently applied predefined categories to label and escalate harmful or high-risk material. • Conducted systematic content reviews for potential violations • Applied classification labels according to platform standards • Contributed to safe and trustworthy digital ecosystems • Ensured labeling accuracy and consistency across cases

As a freelance Trust & Safety / Content Moderator, I reviewed and classified user-generated text content to ensure compliance with platform policies. This role involved making judgment calls on the appropriateness, risk level, and adherence of content to community guidelines. I consistently applied predefined categories to label and escalate harmful or high-risk material. • Conducted systematic content reviews for potential violations • Applied classification labels according to platform standards • Contributed to safe and trustworthy digital ecosystems • Ensured labeling accuracy and consistency across cases

Not specified

Education

N

N/A

Diploma, Information Technology, Digital Skills, Communications, And Journalism

Diploma
2016 - 2024

Work History

D

Dreamport

Travel Manager

Nairobi
2026 - Present
F

Freelance

Remote IT Support Specialist

Nairobi
Not specified