David

Key Skills

Software

Appen

Top Subject Matter

Multimodal AI Training Data for LLMs and Search Algorithms

Top Data Types

Text

Image

Top Task Types

RLHF

Freelancer Overview

Freelance AI Data Specialist – Data Annotation and AI Training. Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Appen. Education includes Master of Science, University of Mannheim (2023) and Bachelor of Science, DHBW Mannheim (Cooperative State University) (2021). AI-training focus includes data types such as Text and labeling workflows including RLHF.

Labeling Experience

Freelance AI Data Specialist – Data Annotation and AI Training

AppenTextRLHF

As a Freelance AI Data Specialist at CrowdGen by Appen, I have performed a range of data annotation and labeling tasks across multiple modalities. I contributed to AI training projects, including search evaluation, prompt evaluation, and output assessment for large language models. My work emphasized following strict taxonomies and quality guidelines to ensure reliable labeled datasets essential for machine learning model development. • Labeled and annotated text, image, audio, and video data for AI training datasets. • Conducted relevance rating and search evaluation for search engine algorithms. • Performed RLHF tasks including evaluation and ranking of AI-generated responses. • Assessed content moderation, sentiment analysis, and applied rubric-based data categorization.

2024 - Present

Education

Work History