Catherine Ndung'U

Key Skills

Software

Other

Remotasks

Scale AI

Appen

Labelbox

Top Subject Matter

Natural Language Processing

Large Language Models

Audio and Multimedia Content

Top Data Types

Text

Audio

Document

Top Task Types

Classification

Cuboid

Question Answering

Text Summarization

Computer Programming Coding

Transcription

Text Generation

Freelancer Overview

T3 Reviewer/Data labeling and annotation. Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal, Proprietary Tooling, and Other. Education includes Master of Science, Strathmore University (2025) and Bachelor of Science, United States International University (2024). AI-training focus includes data types such as Text and Audio and labeling workflows including Evaluation, Rating, and Classification.

Labeling Experience

T3 Reviewer/Data labeling and annotation

Text

As a T3 Reviewer and data labeling specialist at Atlas Capture, I reviewed annotated datasets for quality and compliance. I performed detailed quality control and resolved annotation discrepancies within various text-based AI and NLP projects. I provided corrective feedback and managed workflows for optimal data consistency. • Inspected text annotations and ensured all records met benchmarking standards. • Conducted in-depth quality checks on both completed and in-process labeled data. • Facilitated improvements by providing actionable feedback to annotation teams. • Used proprietary Atlas Capture tools for structured annotation and review.

As a T3 Reviewer and data labeling specialist at Atlas Capture, I reviewed annotated datasets for quality and compliance. I performed detailed quality control and resolved annotation discrepancies within various text-based AI and NLP projects. I provided corrective feedback and managed workflows for optimal data consistency. • Inspected text annotations and ensured all records met benchmarking standards. • Conducted in-depth quality checks on both completed and in-process labeled data. • Facilitated improvements by providing actionable feedback to annotation teams. • Used proprietary Atlas Capture tools for structured annotation and review.

2025 - Present

Data Annotation and Media Evaluator

OtherAudioClassification

As a Data Annotation and Media Evaluator for Alignerr, I conducted labeling and categorization for large audio and media datasets. I also evaluated multimedia and video content for accuracy and guideline compliance. Detailed feedback was provided to improve dataset reliability and maintain data integrity. • Performed high-precision labeling and categorization of audio media. • Evaluated diverse multimedia content including videos. • Identified inconsistencies and delivered improvements. • Managed significant data loads while maintaining attention to detail.

As a Data Annotation and Media Evaluator for Alignerr, I conducted labeling and categorization for large audio and media datasets. I also evaluated multimedia and video content for accuracy and guideline compliance. Detailed feedback was provided to improve dataset reliability and maintain data integrity. • Performed high-precision labeling and categorization of audio media. • Evaluated diverse multimedia content including videos. • Identified inconsistencies and delivered improvements. • Managed significant data loads while maintaining attention to detail.

2024 - Present

AI Trainer/Data Reviewer

RemotasksText

Serving as an AI Trainer/Data Reviewer on Remotasks and Outlier, I evaluated and refined AI-generated responses to boost model performance. My responsibilities included structured labeling of text, media, and video data for language model advancement. I utilized linguistic analysis and prompt review to ensure semantic accuracy, context, and overall quality. • Assessed AI-generated text outputs for coherence and accuracy. • Performed annotation and categorization across various domains. • Applied linguistic analysis to improve prompt and response quality. • Adapted rapidly to evolving guidelines in LLM evaluation work.

Serving as an AI Trainer/Data Reviewer on Remotasks and Outlier, I evaluated and refined AI-generated responses to boost model performance. My responsibilities included structured labeling of text, media, and video data for language model advancement. I utilized linguistic analysis and prompt review to ensure semantic accuracy, context, and overall quality. • Assessed AI-generated text outputs for coherence and accuracy. • Performed annotation and categorization across various domains. • Applied linguistic analysis to improve prompt and response quality. • Adapted rapidly to evolving guidelines in LLM evaluation work.

2023 - 2025

Education

Work History