Rolex Ochieng

Key Skills

Software

Appen

CloudFactory

CVAT

Data Annotation Tech

Labelbox

Mindrift

OneForma

Telus

Top Subject Matter

No subject matter listed

Top Data Types

Computer Code Programming

Text

Video

Top Task Types

Evaluation Rating

Prompt Response Writing SFT

Segmentation

Text Generation

Translation Localization

Freelancer Overview

As an expert in data labeling and AI training, I have over three years of hands-on experience working on diverse annotation projects across text, image, and video datasets. My expertise spans text classification, sentiment analysis, entity recognition, image object detection, and video event tagging for both research and production AI systems. I am proficient in using advanced annotation platforms and collaborative tools to ensure high-quality, consistent data outputs. My academic background in Computer Science and ongoing Master’s in Software Engineering have equipped me with a strong understanding of AI/ML pipelines, quality assurance, and data privacy best practices. I have contributed to projects in sectors such as education technology, software engineering, and research, supporting both global teams and local initiatives. My attention to detail and commitment to quality consistently drive superior results in training data development.

Labeling Experience

Text Data Annotation for NLP Model Training

AppenTextEntity Ner ClassificationClassification

Labeled and categorized large volumes of text data for multiple natural language processing (NLP) projects. Tasks included sentiment tagging, intent classification, and named entity recognition. Maintained high annotation accuracy by strictly following detailed project guidelines and participating in periodic quality reviews. Contributed to the development of robust AI models for international clients.

Labeled and categorized large volumes of text data for multiple natural language processing (NLP) projects. Tasks included sentiment tagging, intent classification, and named entity recognition. Maintained high annotation accuracy by strictly following detailed project guidelines and participating in periodic quality reviews. Contributed to the development of robust AI models for international clients.

2024 - 2025

Education

Work History