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Cynthia Rukwaro

Freelance AI Language Specialist / Data Annotator

Kenya flagNairobi, Kenya
$20.00/hrExpertAppen

Key Skills

Software

AppenAppen

Top Subject Matter

Language AI
Social Media
Content Moderation

Top Data Types

TextText
AudioAudio
DocumentDocument

Top Task Types

Classification

Freelancer Overview

Freelance AI Language Specialist / Data Annotator. Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Appen. Education includes Master of Science, Massachusetts Institute of Technology (2023) and Bachelor of Science, Kenyatta University (2022). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Classification.

ExpertEnglishSwahili

Labeling Experience

Appen

Social Media Content Reviewer / Annotator

AppenTextClassification
As a Social Media Content Reviewer / Annotator, I labeled and classified social media posts into primary categories such as misinformation, hate speech, and spam. I ensured consistent application of annotation guidelines and flagged ambiguous cases for further review. This role required precise attention to the integrity and safety of platform data. • Contributed to quality calibration sessions with the team • Managed high-volume datasets efficiently • Flagged and escalated edge cases • Maintained alignment with annotation guidelines

As a Social Media Content Reviewer / Annotator, I labeled and classified social media posts into primary categories such as misinformation, hate speech, and spam. I ensured consistent application of annotation guidelines and flagged ambiguous cases for further review. This role required precise attention to the integrity and safety of platform data. • Contributed to quality calibration sessions with the team • Managed high-volume datasets efficiently • Flagged and escalated edge cases • Maintained alignment with annotation guidelines

2021 - Present
Appen

Freelance AI Language Specialist / Data Annotator

AppenText
As a Freelance AI Language Specialist / Data Annotator, I reviewed and corrected machine-generated Swahili and English text for use in AI training datasets. I performed audio transcription tasks with attention to linguistic diversity and regional dialects. In this role, I also evaluated AI-generated responses for cultural appropriateness and coherence. • Annotated and categorized social media content for sentiment, intent, and policy compliance • Maintained consistent labeling standards aligned with rubrics • Ensured high transcription accuracy in multiple languages • Contributed to overall data quality review and AI model evaluation

As a Freelance AI Language Specialist / Data Annotator, I reviewed and corrected machine-generated Swahili and English text for use in AI training datasets. I performed audio transcription tasks with attention to linguistic diversity and regional dialects. In this role, I also evaluated AI-generated responses for cultural appropriateness and coherence. • Annotated and categorized social media content for sentiment, intent, and policy compliance • Maintained consistent labeling standards aligned with rubrics • Ensured high transcription accuracy in multiple languages • Contributed to overall data quality review and AI model evaluation

2017 - Present

Education

M

Massachusetts Institute of Technology

Master of Science, Biomedical Engineering

Master of Science
2022 - 2023
K

Kenyatta University

Bachelor of Science, Biomedical Engineering

Bachelor of Science
2017 - 2022

Work History

K

Kenya Medical Engineering

Biomedical Engineer

Nairobi
2024 - 2025
K

Kenyatta National Hospital

Biomedical Equipment Technician

Nairobi
2023 - 2024