Germany-Based English & German AI Generalist Trainer (Remote, Full-Time) 2026 May

Rexzone is hiring Germany-based AI Generalist Trainers to support large language model evaluation through RLHF, prompt evaluation, and training data quality work. You will assess, rank, and QA model outputs in English and German, write clear rationales, and follow annotation guidelines compliance to drive model performance improvement. This full-time remote role focuses on high-precision evaluation, reasoning, and validation across diverse domains while ensuring consistent, safe, and reliable labeling outcomes.

About the Role

As an AI Generalist Trainer at Rexzone, you will evaluate and improve AI systems by performing large language model evaluation tasks in bilingual English/German workflows. Your work will directly influence training data quality, model performance improvement, and annotation guidelines compliance through RLHF-style preference ranking, QA evaluation, and detailed rationale writing.

What You Will Do

You will review model-generated responses, compare alternatives, rank outputs based on instructions and quality rubrics, and provide concise reasoning. You will validate labels, perform QA checks, flag edge cases, and apply content safety labeling requirements to ensure high-quality, policy-aligned datasets for downstream training and evaluation.

How Success Is Measured

Success is measured by accuracy of evaluations, consistency of ranking decisions, strength and clarity of written rationales, and adherence to annotation guidelines compliance. High-performing trainers demonstrate strong analytical reasoning, reliable QA habits, and careful validation that improves training data quality and supports model performance improvement.

Frequently Asked Questions

Q: Is this role remote?
Yes. This is a full-time remote role, and you must be based in Germany.
Q: What tasks will I do?
You will perform large language model evaluation tasks including RLHF-style ranking, prompt evaluation, QA evaluation, label validation, and writing rationales in both English and German while following annotation guidelines compliance.
Q: Do I need AI experience?
AI or annotation experience is helpful but not always required. Strong analytical skills, attention to detail, and the ability to apply guidelines consistently are essential.
Q: What languages are required?
Fluency in English and German is required because you will evaluate, compare, and write rationales across bilingual content.
Q: What domains are covered?
You may evaluate content across general knowledge, reasoning, instruction-following, writing quality, and content safety labeling scenarios to support training data quality and model performance improvement.

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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