Duncan Matuti

Key Skills

Software

Other

Telus

Appen

Top Subject Matter

Academic and Industry Research

LLM Fine-tuning and Evaluation

Search Engine Data Labeling and AI Development

Top Data Types

Text

Image

Top Task Types

Classification

Freelancer Overview

Research Study Participant & AI Training Expert (Freelance). Core strengths include Other, Telus, and Appen. Education includes Bachelor of Arts, Moi University (2022) and Certificate, Moringa School (2024). AI-training focus includes data types such as Text and Image and labeling workflows including Classification, Evaluation, and Rating.

Labeling Experience

Online Data Researcher (Freelance)

TelusText

I contributed to the fine-tuning of Large Language Models (LLMs) by evaluating and refining AI-generated responses. My responsibilities included ensuring the accuracy, safety, and natural language fluency of model outputs. I utilized specialized annotation platforms to perform high-volume labeling and quality evaluation tasks for Project Sonic. • Evaluated and rated LLM outputs for accuracy and relevance • Used Multimango and Parimango AI training platforms • Managed independent project timelines with strict data privacy • Supported ethical development in AI projects

I contributed to the fine-tuning of Large Language Models (LLMs) by evaluating and refining AI-generated responses. My responsibilities included ensuring the accuracy, safety, and natural language fluency of model outputs. I utilized specialized annotation platforms to perform high-volume labeling and quality evaluation tasks for Project Sonic. • Evaluated and rated LLM outputs for accuracy and relevance • Used Multimango and Parimango AI training platforms • Managed independent project timelines with strict data privacy • Supported ethical development in AI projects

2025 - Present

Research Study Participant & AI Training Expert (Freelance)

OtherTextClassification

I performed data labeling and sentiment analysis tasks to train AI models for academic and industry research studies. My work focused on ensuring high-quality, reliable data and maintaining accuracy under strict Non-Disclosure Agreement terms. As a freelancer, I reviewed, verified, and formulated concise instructions for each labeling task. • Labeled and analyzed text data for AI model development • Ensured data quality and accuracy according to project requirements • Formulated and followed complex instructions • Adapted quickly to new technologies and tools

I performed data labeling and sentiment analysis tasks to train AI models for academic and industry research studies. My work focused on ensuring high-quality, reliable data and maintaining accuracy under strict Non-Disclosure Agreement terms. As a freelancer, I reviewed, verified, and formulated concise instructions for each labeling task. • Labeled and analyzed text data for AI model development • Ensured data quality and accuracy according to project requirements • Formulated and followed complex instructions • Adapted quickly to new technologies and tools

2024 - Present

Search Engine Evaluator (Independent Contractor)

AppenImageClassification

I performed image classification, video annotation, text annotation, and product testing micro-tasks on the UHRS Platform for various AI development projects. My role involved evaluating web search results, improving ranking algorithms through labeled data, and ensuring ongoing high accuracy. I consistently maintained high performance across moderately high task volumes as an independent contractor. • Labeled images, videos, and text for AI and search algorithm training • Utilized UHRS Platform for annotation and evaluation • Conducted product testing to inform AI system development • Ensured data consistency and labeling quality at scale

I performed image classification, video annotation, text annotation, and product testing micro-tasks on the UHRS Platform for various AI development projects. My role involved evaluating web search results, improving ranking algorithms through labeled data, and ensuring ongoing high accuracy. I consistently maintained high performance across moderately high task volumes as an independent contractor. • Labeled images, videos, and text for AI and search algorithm training • Utilized UHRS Platform for annotation and evaluation • Conducted product testing to inform AI system development • Ensured data consistency and labeling quality at scale

2024 - 2025

Education

Work History