Denish Owuor

Key Skills

Software

Scale AI

Other

Top Subject Matter

Natural Language Processing

Large Language Models

Conversational AI

Top Data Types

Text

Top Task Types

Classification

Prompt + Response Writing (SFT)

Freelancer Overview

AI Data Annotation Specialist (Project-Based). Brings 1+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Scale AI, Internal, and Proprietary Tooling. Education includes Master of Science, University of Nairobi (2023) and Bachelor of Science, Masinde Muliro University of Science and Technology (2024). AI-training focus includes data types such as Text and labeling workflows including Classification, Evaluation, and Rating.

Labeling Experience

AI Data Annotation Specialist (Project-Based)

Scale AITextClassification

As an AI Data Annotation Specialist, I annotated and labeled datasets for NLP and machine learning models to boost training accuracy. I reviewed AI-generated outputs and corrected inconsistencies to enhance model performance. I organized data according to annotation guidelines and conducted quality assurance checks. • Improved model learning outcomes through refined labeling strategies • Labeled both structured and unstructured data for training • Maintained high standards of data accuracy • Collaborated with AI teams to optimize annotation processes

As an AI Data Annotation Specialist, I annotated and labeled datasets for NLP and machine learning models to boost training accuracy. I reviewed AI-generated outputs and corrected inconsistencies to enhance model performance. I organized data according to annotation guidelines and conducted quality assurance checks. • Improved model learning outcomes through refined labeling strategies • Labeled both structured and unstructured data for training • Maintained high standards of data accuracy • Collaborated with AI teams to optimize annotation processes

2025 - 2025

AI Prompt Engineering & Evaluation Contributor

Text

As an AI Prompt Engineering & Evaluation Contributor, I developed prompts to assess large language model performance. I evaluated AI-generated responses for accuracy, reasoning, and instruction adherence. I contributed to dataset improvements for model training and evaluation. • Identified and documented instances of bias and hallucinations • Worked with MFA and enterprise systems • Performed comprehensive review of model outputs • Supported ongoing model enhancement efforts

As an AI Prompt Engineering & Evaluation Contributor, I developed prompts to assess large language model performance. I evaluated AI-generated responses for accuracy, reasoning, and instruction adherence. I contributed to dataset improvements for model training and evaluation. • Identified and documented instances of bias and hallucinations • Worked with MFA and enterprise systems • Performed comprehensive review of model outputs • Supported ongoing model enhancement efforts

2024 - 2024

AI Data Annotation Contributor

Scale AITextClassification

As an AI Data Annotation Contributor at Scale AI, I annotated NLP datasets to support AI model training. I performed classification and sentiment analysis on provided text data. I ensured high data quality through regular validation and quality checks. • Contributed to dataset robustness for NLP models • Engaged in classification and sentiment tasks • Reviewed and improved model responses • Maintained consistency in annotation standards

As an AI Data Annotation Contributor at Scale AI, I annotated NLP datasets to support AI model training. I performed classification and sentiment analysis on provided text data. I ensured high data quality through regular validation and quality checks. • Contributed to dataset robustness for NLP models • Engaged in classification and sentiment tasks • Reviewed and improved model responses • Maintained consistency in annotation standards

2023 - 2023

AI Chatbot Development Project

OtherTextPrompt Response Writing SFT

During the AI Chatbot Development Project, I built an AI chatbot using OpenAI API for automated customer support. I implemented prompt engineering strategies to optimize response quality and tested chatbot performance with real-world conversations. I improved chatbot accuracy through iterative tuning and evaluation. • Utilized OpenAI API for dialogue generation • Enhanced prompt-response patterns with SFT techniques • Collected and analyzed conversation datasets • Achieved measurable performance improvements

During the AI Chatbot Development Project, I built an AI chatbot using OpenAI API for automated customer support. I implemented prompt engineering strategies to optimize response quality and tested chatbot performance with real-world conversations. I improved chatbot accuracy through iterative tuning and evaluation. • Utilized OpenAI API for dialogue generation • Enhanced prompt-response patterns with SFT techniques • Collected and analyzed conversation datasets • Achieved measurable performance improvements

2023 - 2023

Education

Work History