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

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

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About the Role

As a Germany-based English & German AI Generalist Trainer at Rexzone, you will help improve AI assistants by performing large language model evaluation tasks such as ranking responses, verifying factuality and reasoning quality, and applying content safety labeling. Your work directly supports RLHF and training data quality by producing high-signal judgments and rationales under strict annotation guidelines compliance.

Responsibilities

Evaluate and rank model-generated outputs in German and English using defined rubrics; perform QA evaluation and validation to ensure training data quality and consistency; write concise rationales explaining reasoning behind rankings and pass/fail decisions; apply annotation guidelines compliance for prompt evaluation, data labeling, and content safety labeling; identify edge cases, ambiguity, and error patterns to support model performance improvement; document issues and escalate unclear cases while maintaining high throughput and accuracy.

Basic Qualifications

Must be based in Germany and eligible to work as a remote contractor/employee per local requirements; fluent in German and English (reading, writing, and nuanced comprehension); strong analytical skills with the ability to assess reasoning, coherence, and instruction-following; excellent attention to detail and consistency when applying rubrics and annotation guidelines; reliable internet connection and ability to meet quality and productivity targets.

Preferred Qualifications

Experience with data labeling, RLHF, prompt evaluation, QA evaluation, or other annotation workflows; familiarity with LLM evaluation concepts (helpfulness, harmlessness, honesty, grounding) and common failure modes; self-driven, organized, and comfortable working independently in a remote, metric-driven environment; experience working with sensitive content and applying content safety labeling policies.

Compensation

USD $35–$40 per hour, depending on skills and performance. This is a full-time remote role for candidates based in Germany.

How to Apply

Apply with an up-to-date CV and a brief summary of your bilingual German/English experience and any relevant evaluation, annotation, or QA work. Rexzone reviews applications on a rolling basis and may include a short skills assessment focused on large language model evaluation and annotation guidelines compliance.

Frequently Asked Questions

  • Q: Is this role remote?

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

  • Q: What tasks will I do?

    You will evaluate and rank LLM outputs, perform QA evaluation and validation, complete data labeling and prompt evaluation tasks, apply content safety labeling, and write rationales that support training data quality and model performance improvement.

  • Q: Do I need AI experience?

    AI experience is helpful but not always required. We prioritize strong analytical skills, attention to detail, and the ability to follow annotation guidelines compliance; training is provided for task-specific rubrics.

  • Q: What languages are required?

    Fluency in both German and English is required, including the ability to evaluate nuance, tone, and reasoning in each language.

  • Q: What domains are covered?

    General-purpose assistant domains such as writing quality, reasoning, instruction-following, factuality checks, and content safety; tasks may vary across consumer and enterprise use cases within large language model evaluation workflows.

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.

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