Samson Waiti

Key Skills

Software

CVAT

Labelbox

Remotasks

Appen

Clickworker

Top Subject Matter

Autonomous Vehicle Datasets

E-commerce Product Data & Taxonomy

Social Media

Top Data Types

Image

Video

Audio

Text

Top Task Types

Object Detection

Transcription

Classification

Bounding Box

Segmentation

Entity (NER) Classification

Point/Key Point

Polygon

RLHF

Data Collection

Freelancer Overview

Freelance AI Data Annotator - Image Annotation. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include CVAT, Labelbox, and Express Scribe. Education includes Bachelor of Arts, Kisii University (2022). AI-training focus includes data types such as Image, Video, and Audio and labeling workflows including Object Detection, Transcription, and Classification.

Labeling Experience

LLM Evaluator & Search Rater

Text

I evaluated AI outputs for search relevance and quality across UHRS, OneForma, and Appen platforms. Tasks included detailed rating of search engine responses using standardized rubrics. This work provided critical feedback for improving AI-powered search results. • Utilized platform-specific rating tools and interfaces • Applied consistent QA methods across hundreds of queries • Delivered high-quality relevance and intent assessments • Supported ongoing AI model enhancement and validation

I evaluated AI outputs for search relevance and quality across UHRS, OneForma, and Appen platforms. Tasks included detailed rating of search engine responses using standardized rubrics. This work provided critical feedback for improving AI-powered search results. • Utilized platform-specific rating tools and interfaces • Applied consistent QA methods across hundreds of queries • Delivered high-quality relevance and intent assessments • Supported ongoing AI model enhancement and validation

2020 - Present

Freelance AI Data Annotator - Text Annotation

RemotasksTextClassification

I completed more than 5,000 text annotation tasks involving sentiment analysis, entity recognition, and content moderation. Work included label creation for various NLP applications and intent classification for AI systems. The assignments supported both English and African language projects. • Used platforms like Remotasks and Toloka for task execution • Focused on sentiment, NER, and moderation accuracy • Enhanced datasets for multilingual NLP • Adhered to platform rating rubrics and benchmarks

I completed more than 5,000 text annotation tasks involving sentiment analysis, entity recognition, and content moderation. Work included label creation for various NLP applications and intent classification for AI systems. The assignments supported both English and African language projects. • Used platforms like Remotasks and Toloka for task execution • Focused on sentiment, NER, and moderation accuracy • Enhanced datasets for multilingual NLP • Adhered to platform rating rubrics and benchmarks

2020 - Present

Freelance AI Data Annotator - Audio Transcription

AudioTranscription

I transcribed over 200 hours of audio in English and Swahili for various AI model training datasets. Audio sources included conversational, interview, and mixed-quality recordings. The task required precise speech recognition and segmentation labeling. • Utilized Express Scribe and oTranscribe software • Handled regional accents and diverse linguistic content • Delivered high transcription accuracy • Supported multilingual NLP projects for African languages

I transcribed over 200 hours of audio in English and Swahili for various AI model training datasets. Audio sources included conversational, interview, and mixed-quality recordings. The task required precise speech recognition and segmentation labeling. • Utilized Express Scribe and oTranscribe software • Handled regional accents and diverse linguistic content • Delivered high transcription accuracy • Supported multilingual NLP projects for African languages

2020 - Present

Freelance AI Data Annotator - Video Annotation

LabelboxVideoObject Detection

In my freelance data annotation work, I labeled videos for object detection and action recognition. Tasks focused on urban driving scenes, product demonstrations, and social content. I implemented bounding box and segmentation labels to support ML model training. • Annotated videos for autonomous vehicle scene understanding • Used CVAT and Labelbox as primary software • Ensured high fidelity on complex sequences • Coordinated multiple concurrent projects on various platforms

In my freelance data annotation work, I labeled videos for object detection and action recognition. Tasks focused on urban driving scenes, product demonstrations, and social content. I implemented bounding box and segmentation labels to support ML model training. • Annotated videos for autonomous vehicle scene understanding • Used CVAT and Labelbox as primary software • Ensured high fidelity on complex sequences • Coordinated multiple concurrent projects on various platforms

2020 - Present

Freelance AI Data Annotator - Image Annotation

CVATImageObject Detection

As a freelance AI data annotator, I annotated over 15,000 images using object detection and classification methods. I worked extensively on datasets involving autonomous vehicles, e-commerce products, and social media content. Labeling tasks included bounding boxes, polygon segmentation, and detailed categorization for machine learning training. • Datasets spanned complex urban street scenes for AV development • Utilized CVAT and Labelbox annotation tools • Maintained high quality and accuracy standards • Worked across Remotasks, Toloka, CrowdGen, and more

As a freelance AI data annotator, I annotated over 15,000 images using object detection and classification methods. I worked extensively on datasets involving autonomous vehicles, e-commerce products, and social media content. Labeling tasks included bounding boxes, polygon segmentation, and detailed categorization for machine learning training. • Datasets spanned complex urban street scenes for AV development • Utilized CVAT and Labelbox annotation tools • Maintained high quality and accuracy standards • Worked across Remotasks, Toloka, CrowdGen, and more

2020 - Present

Education

Work History