Christophe William

Key Skills

Software

Other

Appen

Remotasks

Labelbox

Scale AI

Top Subject Matter

AI Training Datasets

Online Content Moderation and AI Evaluation

Top Data Types

Text

Image

Video

Top Task Types

RLHF

Evaluation/Rating

Question Answering

Data Collection

Text Summarization

Object Detection

Prompt + Response Writing (SFT)

Freelancer Overview

Data Annotation Specialist (Freelance). Brings 7+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other and Appen. Education includes Bachelor of Science, N/A (2017). AI-training focus includes data types such as Text and labeling workflows including Classification, Evaluation, and Rating.

Labeling Experience

Data Annotation Specialist (Freelance)

OtherTextClassification

In this freelance position, I labeled text data, performed image classification, and carried out response evaluation tasks for AI training workflows. I followed strict guidelines to ensure high-quality annotations suitable for machine learning and LLM applications. The work included identifying dataset inconsistencies and edge cases. • Labeled and categorized text based on detailed instructions. • Conducted response evaluation for AI model improvement. • Classified images where required for dataset enrichment. • Maintained data quality control throughout annotation processes.

In this freelance position, I labeled text data, performed image classification, and carried out response evaluation tasks for AI training workflows. I followed strict guidelines to ensure high-quality annotations suitable for machine learning and LLM applications. The work included identifying dataset inconsistencies and edge cases. • Labeled and categorized text based on detailed instructions. • Conducted response evaluation for AI model improvement. • Classified images where required for dataset enrichment. • Maintained data quality control throughout annotation processes.

2023 - Present

Content Moderator / AI Rater

AppenText

As a Content Moderator and AI Rater at Appen, I reviewed and evaluated online content for machine learning model development. My responsibilities included labeling data and ensuring consistency in datasets for AI training. I contributed to model improvement by identifying and addressing atypical examples. • Labeled text and digital content to train AI systems. • Rated relevance and appropriateness of data samples. • Ensured standardization across annotations. • Collaborated with quality teams for continual guideline updates.

As a Content Moderator and AI Rater at Appen, I reviewed and evaluated online content for machine learning model development. My responsibilities included labeling data and ensuring consistency in datasets for AI training. I contributed to model improvement by identifying and addressing atypical examples. • Labeled text and digital content to train AI systems. • Rated relevance and appropriateness of data samples. • Ensured standardization across annotations. • Collaborated with quality teams for continual guideline updates.

2019 - 2021

Education

Work History