Germany-Based English & German AI Generalist Trainer 2026 May

Rexzone is hiring Germany-based, bilingual (English/German) AI Generalist Trainers to support RLHF and large language model evaluation. You will evaluate, rank, and QA model outputs to strengthen training data quality, enforce annotation guidelines compliance, and drive model performance improvement across real-world AI/LLM workflows.

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About the Role

As a Germany-based English & German AI Generalist Trainer at Rexzone, you will improve AI systems by performing large language model evaluation and RLHF-style assessments. You will review model-generated responses in English and German, compare and rank outputs, write clear rationales, and validate data to ensure training data quality. This remote, full-time role focuses on consistent evaluation practices, annotation guidelines compliance, and measurable model performance improvement.

What You Will Do

You will evaluate and rank model responses, perform QA evaluation and validation checks, and document reasoning that explains preferences and errors. Your work will include prompt evaluation, data labeling decisions, content safety labeling when required, and maintaining high training data quality standards for LLM evaluation workflows.

How Success Is Measured

Success is measured by accuracy and consistency in large language model evaluation, strong annotation guidelines compliance, high-quality rationales, effective QA evaluation outcomes, and reliable validation that supports model performance improvement.

Compensation

This role pays $35–$40 USD per hour (hourly), depending on project needs and performance in evaluation and QA tasks.

How to Apply

Apply to Rexzone with a brief summary of your bilingual English/German experience, your Germany-based availability, and examples of analytical work that demonstrate attention to detail and structured reasoning.

Frequently Asked Questions

  • Q: Is this role remote?

    Yes. This is a remote, full-time role, and you must be based in Germany.

  • Q: What tasks will I do?

    You will perform large language model evaluation, ranking and comparison of model outputs, prompt evaluation, QA evaluation, validation checks, data labeling per annotation guidelines, and write concise rationales that explain your reasoning.

  • Q: Do I need AI experience?

    AI experience is helpful but not required. Rexzone values strong analytical skills, attention to detail, and the ability to follow annotation guidelines compliance for training data quality and model performance improvement.

  • Q: What languages are required?

    Fluency in both English and German is required, including reading and writing in both languages.

  • Q: What domains are covered?

    Projects commonly include general knowledge, customer-style conversations, instruction following, content safety labeling, and reasoning-focused tasks aligned with RLHF and training data quality goals.

230+Domains Covered
120K+PhD, Specialist, Experts Onboarded
50+Countries Represented

Industry-Leading Compensation

We believe exceptional intelligence deserves exceptional pay. Our platform consistently offers rates above the industry average, rewarding experts for their true value and real impact on frontier AI. Here, your expertise isn't just appreciated - it's properly compensated.

Work Remotely, Work Freely

No office. No commute. No constraints. Our fully remote workflow gives experts complete flexibility to work at their own pace, from any country, any time zone. You focus on meaningful tasks - we handle the rest.

Respect at the Core of Everything

AI trainers are the heart of our company. We treat every expert with trust, humanity, and genuine appreciation. From personalized support to transparent communication, we build long-term relationships rooted in respect and care.

Ready to Shape the Future of AI Data Operations?

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