Hans Jakob Trein

Key Skills

Software

Scale AI

Top Subject Matter

No subject matter listed

Top Data Types

Text

Top Label Types

Question Answering

RLHF

Evaluation Rating

Prompt Response Writing SFT

Freelancer Overview

I am an experienced AI prompt engineer with a strong background in designing, optimizing, and evaluating prompts for large language models (LLMs). My work has focused on data labeling and annotation, where I conduct detailed side-by-side assessments of model outputs, analyzing criteria such as harmfulness, instruction-following, and factual accuracy to ensure high-quality AI training data. I am skilled in leveraging tools like ChatGPT and Gemini to develop and refine tailored responses for a variety of use cases, including creative content and technical queries. My ability to collaborate across interdisciplinary teams, combined with my attention to detail and commitment to ethical standards, enables me to deliver precise and reliable data annotation that drives improved model performance. I am passionate about integrating advanced AI solutions into business processes and am continuously expanding my expertise in NLP and training data workflows.

Labeling Experience

Outlier

Scale AITextQuestion AnsweringRLHF

Prompt Design and Optimization: Crafting and refining prompts for specific use cases, ensuring precision and relevance in AI outputs.  Model Evaluation: Conducting side-by-side assessments of LLMs based on harmfulness, instruction-following, and factual accuracy to enhance AI performance.  Response Development: Designing tailored responses that meet projectspecific goals while adhering to ethical and factual standards.  AI Tool Expertise: Skilled in using and configuring modern AI tools, such as ChatGPT and Gemini , for diverse applications.

Prompt Design and Optimization: Crafting and refining prompts for specific use cases, ensuring precision and relevance in AI outputs.  Model Evaluation: Conducting side-by-side assessments of LLMs based on harmfulness, instruction-following, and factual accuracy to enhance AI performance.  Response Development: Designing tailored responses that meet projectspecific goals while adhering to ethical and factual standards.  AI Tool Expertise: Skilled in using and configuring modern AI tools, such as ChatGPT and Gemini , for diverse applications.

2024 - 2025

Education

Work History