Remote English-German AI Trainer & Evaluator

Rex.zone; United States; Remote; USD 73,000 - 101,000; Full time

Job summary

Rex.zone is hiring Germany-based AI Generalist Trainers to support large language model evaluation through RLHF, LLM evaluation, and training data quality workflows. You will assess, rank, and QA model outputs in English and German, write clear rationales, and follow annotation guidelines to drive model performance.

As a Germany-based remote role, you must be fluent in German and English, with strong writing, analytical skills, and meticulous attention to guidelines.

Qualifications

• Fluent in German and English with strong writing skills.
• Analytical mindset with attention to detail.
• Ability to follow complex annotation guidelines.
• Comfortable with web tools and structured review workflows.

Responsibilities

• Evaluate model responses for correctness and usefulness in English and German.
• Rank outputs using RLHF-style criteria.
• Perform QA checks to ensure data quality and guideline compliance.
• Explain reasoning with concise rationales for rankings and edits.
• Identify ambiguity and propose clarifications to guidelines.
• Review prompts and responses for policy alignment and content safety labeling when required.
• Track errors and feedback to support model performance improvements.

Skills

German language

English language

Analytical thinking

Attention to detail

Job description

Rex.zone is hiring Germany-based AI Generalist Trainers to support large language model evaluation through RLHF, LLM evaluation, and training data quality workflows. You will assess, rank, and QA model outputs in English and German, write clear rationales, and follow annotation guidelines to drive model performance.

As a Germany-based remote role, you must be fluent in German and English, with strong writing, analytical skills, and meticulous attention to guidelines.