Kevin Yuaya

Key Skills

Software

Label Studio

Scale AI

Appen

Top Subject Matter

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Top Data Types

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Top Label Types

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Freelancer Overview

I am a detail-oriented AI Data Annotation and Evaluation Specialist with hands-on experience supporting machine learning and generative AI systems through accurate image, text, audio, and video labeling. My work includes annotating datasets for computer vision and NLP projects, evaluating large language model outputs, and providing structured feedback to improve chatbot and recommendation engine performance. I am skilled in both English and Swahili, which enables me to deliver high-quality localization and translation for diverse user bases. I have a proven track record of maintaining high data quality standards, validating datasets, and using annotation platforms such as Label Studio, CVAT, and Scale AI tools. My background in data science, combined with certifications in data annotation and AI model evaluation, allows me to contribute effectively to remote, collaborative AI training data projects.

Labeling Experience

AI Data Annotation Specialist (Freelance / Remote)

Label StudioImageObject Detection

As an AI Data Annotation Specialist, I annotated images, text, audio, and video datasets for machine learning and generative AI projects. I tagged relevant objects, entities, and contextual details to support model training and validation. I contributed structured human feedback and ensured high data quality through review and consistency checks. • Labeled and reviewed data for vision and language models • Verified annotation accuracy across multiple datasets • Maintained productivity and quality metrics remotely • Supported AI model improvement through structured feedback

As an AI Data Annotation Specialist, I annotated images, text, audio, and video datasets for machine learning and generative AI projects. I tagged relevant objects, entities, and contextual details to support model training and validation. I contributed structured human feedback and ensured high data quality through review and consistency checks. • Labeled and reviewed data for vision and language models • Verified annotation accuracy across multiple datasets • Maintained productivity and quality metrics remotely • Supported AI model improvement through structured feedback

2024 - 2026

Localization & Language Reviewer (English–Swahili)

AppenTextTranslation Localization

As a Localization & Language Reviewer, I reviewed AI-generated English–Swahili translations for cultural and linguistic accuracy. I localized chatbot and AI responses for East African users ensuring regional naturalness. I checked tone and relevance for natural language applications. • Validated translation accuracy and regional relevance • Localized AI outputs for East African target audiences • Ensured language tone matched cultural context • Reviewed translations to improve NLP model quality

As a Localization & Language Reviewer, I reviewed AI-generated English–Swahili translations for cultural and linguistic accuracy. I localized chatbot and AI responses for East African users ensuring regional naturalness. I checked tone and relevance for natural language applications. • Validated translation accuracy and regional relevance • Localized AI outputs for East African target audiences • Ensured language tone matched cultural context • Reviewed translations to improve NLP model quality

2024 - 2025

AI Response Evaluator / LLM Reviewer

Scale AITextEvaluation Rating

As an AI Response Evaluator and LLM Reviewer, I evaluated AI-generated conversational outputs for correctness and safety. I rated conversational quality, linguistic naturalness, and provided structured feedback to improve model performance. I compared multiple chatbot outputs to select the best responses for training language models. • Assessed conversational AI outputs for quality • Gave structured feedback to enhance chatbot accuracy • Compared and selected optimal responses • Maintained consistent evaluation standards across numerous tasks

As an AI Response Evaluator and LLM Reviewer, I evaluated AI-generated conversational outputs for correctness and safety. I rated conversational quality, linguistic naturalness, and provided structured feedback to improve model performance. I compared multiple chatbot outputs to select the best responses for training language models. • Assessed conversational AI outputs for quality • Gave structured feedback to enhance chatbot accuracy • Compared and selected optimal responses • Maintained consistent evaluation standards across numerous tasks

2024 - 2025

Education

Work History