Esther Kibet

Key Skills

Software

Appen

Clickworker

CloudFactory

Data Annotation Tech

Label Studio

OneForma

Prodigy

Telus

Top Subject Matter

Natural Language Processing

Legal Services & Contract Review

Regulatory Compliance & Risk Analysis

Top Data Types

Text

Image

Video

Top Task Types

Bounding Box

Polygon

Segmentation

Classification

Point Key Point

Text Generation

Text Summarization

Question Answering

Transcription

Evaluation Rating

Data Collection

Prompt Response Writing SFT

Object Detection

Fine Tuning

Freelancer Overview

I have 5+ years of experience working with data labeling and AI training workflows, primarily focused on language-based datasets and content evaluation. My work involves annotating, categorizing, and reviewing large volumes of data to improve machine learning model performance and accuracy. I have experience labeling text and document-based datasets, performing tasks such as text classification, sentiment analysis, entity recognition, and question, answer annotation. I am comfortable following complex annotation guidelines, maintaining high consistency, and ensuring quality control across datasets. My experience also includes content moderation, natural language evaluation, and training data preparation, where I analyze responses for clarity, accuracy, and contextual relevance. I am skilled at identifying edge cases, correcting annotation inconsistencies, and providing structured feedback to improve dataset quality. In addition, I am familiar with AI data labeling platforms and collaborative remote workflows, including working with tools similar to Appen-style annotation environments. I maintain strong attention to detail, accuracy, and efficiency when handling large scale labeling projects. My background in English and literature further strengthens my ability to evaluate language, tone, context, and meaning within AI training datasets.

Labeling Experience

AI Data Annotation & Language Evaluation (Freelance / Remote)

AppenText

As a freelance AI data annotator and language evaluator, I created and reviewed natural language question and answer datasets for AI model training. My responsibilities included assessing the accuracy, clarity, and relevance of text responses and performing data labeling and categorization tasks. I closely followed detailed annotation guidelines to ensure high-quality results and supported AI system improvement through human feedback submissions. • Generated and evaluated question–answer pairs for natural language understanding • Labeled and categorized text data for training and evaluation purposes • Assessed language quality for accuracy and relevance • Contributed to model improvement by providing expert feedback

As a freelance AI data annotator and language evaluator, I created and reviewed natural language question and answer datasets for AI model training. My responsibilities included assessing the accuracy, clarity, and relevance of text responses and performing data labeling and categorization tasks. I closely followed detailed annotation guidelines to ensure high-quality results and supported AI system improvement through human feedback submissions. • Generated and evaluated question–answer pairs for natural language understanding • Labeled and categorized text data for training and evaluation purposes • Assessed language quality for accuracy and relevance • Contributed to model improvement by providing expert feedback

2024 - 2024

Education

Work History