Andreas

Key Skills

Software

Data Annotation Tech

Top Subject Matter

Large Language Models

AI Model Evaluation

Top Data Types

Text

Computer Code Programming

Top Task Types

RLHF

Freelancer Overview

Currently working as AI Training Specialist at DataAnnotation.tech, focused on LLM evaluation and RLHF. Active in Python development with a focus on data pipelines and automation. Built SkillRadar, an automated tool for extracting in-demand skills from AI job postings. Multilingual: German (native), English (fluent), Spanish (proficient).

Labeling Experience

AI Training Specialist (self-employed) · DataAnnotation.tech

Data Annotation TechTextRLHF

As an AI Training Specialist at DataAnnotation.tech, I focus on LLM evaluation and reinforcement learning from human feedback (RLHF). My responsibilities include assessing model outputs and contributing to the refinement of large language models. I work extensively with text data and Python to improve AI performance and safety. • Evaluated and rated AI-generated responses for quality and safety • Provided structured feedback to guide LLM improvements • Applied RLHF for alignment and more consistent AI behavior • Utilized Data Annotation Tech tools as part of the workflow

2026 - Present

Education

Work History