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Denno Smith

Freelance AI Data Specialist

KENYA flag
kutus, Kenya
$20.00/hrExpertLabelboxLabel StudioMicro1

Key Skills

Software

LabelboxLabelbox
Label StudioLabel Studio
Micro1
MercorMercor
MindriftMindrift
RemotasksRemotasks
TelusTelus
AWS SageMakerAWS SageMaker
AppenAppen

Top Subject Matter

healthcare-patients records and medical data
finance-risk analysis
e-commerce-product categorization

Top Data Types

VideoVideo
ImageImage
AudioAudio

Top Task Types

RLHF
Evaluation Rating
Prompt Response Writing SFT
Bounding Box
Segmentation
Polygon
Entity Ner Classification
Cuboid
Object Detection
Polyline
Question Answering
Text Summarization
Fine Tuning
Text Generation
Red Teaming
Transcription
Point Key Point

Freelancer Overview

Name: Raylison Mathew Email: raylisonmathew435@outlook.com Location: United States of America Professional Summary AI Data Specialist with a strong foundation in Computer Science and over 8 years of experience supporting machine learning and AI systems. Expertise in data annotation, evaluation, and preprocessing to enhance model performance. Skilled in building structured data workflows, conducting pairwise evaluations, and ensuring high-quality datasets. Proficient in Python and data analysis tools, with a growing focus on machine learning and data-driven problem solving. Core Skills • Machine Learning Data Preparation • Data Annotation & Labeling (Text, Image, Audio, Video) • AI Model Evaluation & Performance Analysis • Data Preprocessing & Cleaning • Pairwise Comparison & Ranking Tasks • Natural Language Processing (NLP) Support • Data Quality Assurance (QA) • Analytical Thinking & Problem Solving Tools & Technologies Programming: • Python (Pandas, NumPy, data preprocessing, scripting) Data Analysis: • Microsoft Excel, Google Sheets ML/AI Tools: • Labelbox, Scale AI, Amazon SageMaker Ground Truth Development Tools: • Jupyter Notebook, Git (Version Control) Data Formats: • JSON, CSV, XML Other Tools: • Google Workspace, Microsoft Office Suite Professional Experience Freelance AI Data Specialist Remote | 2016 – 2026 • Performed data annotation and labeling to create high-quality datasets for supervised machine learning models • Evaluated AI-generated outputs using pairwise c

ExpertEnglish

Labeling Experience

Freelance AI Data Specialist

ImageEvaluation Rating
Freelance AI Data Specialist Remote | 2016 – 2026 • Performed data annotation and labeling to create high-quality datasets for supervised machine learning models • Evaluated AI-generated outputs using pairwise comparison and ranking methodologies to improve accuracy and relevance • Preprocessed and structured large datasets using Python (Pandas), including cleaning, transformation, and validation • Conducted object detection and classification tasks across image, audio, and video datasets • Ensured data quality through rigorous QA processes, maintaining consistency and adherence to guidelines • Managed structured data formats (JSON, CSV) for organization and validation of training datasets • Supported NLP tasks such as text classification, sentiment analysis, and content evaluation • Collaborated with distributed global teams, consistently meeting deadlines and quality standards Project Highlights • Improved dataset accuracy and consistency through detailed annotation and QA processes, contributing to better-performing AI models • Successfully handled high-volume data labeling tasks with strong accuracy across multiple domains • Streamlined data preprocessing workflows using Python, increasing efficiency and reducing manual effort

Freelance AI Data Specialist Remote | 2016 – 2026 • Performed data annotation and labeling to create high-quality datasets for supervised machine learning models • Evaluated AI-generated outputs using pairwise comparison and ranking methodologies to improve accuracy and relevance • Preprocessed and structured large datasets using Python (Pandas), including cleaning, transformation, and validation • Conducted object detection and classification tasks across image, audio, and video datasets • Ensured data quality through rigorous QA processes, maintaining consistency and adherence to guidelines • Managed structured data formats (JSON, CSV) for organization and validation of training datasets • Supported NLP tasks such as text classification, sentiment analysis, and content evaluation • Collaborated with distributed global teams, consistently meeting deadlines and quality standards Project Highlights • Improved dataset accuracy and consistency through detailed annotation and QA processes, contributing to better-performing AI models • Successfully handled high-volume data labeling tasks with strong accuracy across multiple domains • Streamlined data preprocessing workflows using Python, increasing efficiency and reducing manual effort

2016 - 2026

Education

U

University of Florida

Bachelor of Science in Computer Science, Bachelor of Science in Computer Science

Bachelor of Science in Computer Science
2012 - 2016

Work History

F

Freelance AI Data Specialist

Freelance AI Data Specialist

florida
2016 - 2026
F

Freelance AI Data Specialist

Freelance AI Data Specialist

florida
2016 - 2026