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

Rexzone is hiring Germany-based, bilingual English/German AI Generalist Trainers to support RLHF and large language model evaluation by ranking, QA evaluation, and validating model outputs to strengthen training data quality and drive model performance improvement.

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About the Role

As an AI Generalist Trainer at Rexzone, you will evaluate and improve AI systems by assessing, ranking, and validating model-generated outputs across multiple domains. Your work supports RLHF workflows, annotation guidelines compliance, and training data quality so models learn better behaviors and achieve measurable model performance improvement. This is a remote, full-time role for candidates based in Germany with fluent English and German.

Responsibilities

Perform large language model evaluation by reviewing responses for correctness, completeness, tone, and policy adherence; rank and compare multiple model outputs and select the best response with clear reasoning; write concise, well-structured rationales that justify rankings and help model performance improvement; execute QA evaluation and validation checks to ensure training data quality and annotation guidelines compliance; conduct prompt evaluation and identify failure modes such as hallucinations, unsafe content, and instruction-following gaps; label and categorize content (including content safety labeling) following detailed guidelines; escalate edge cases and propose guideline clarifications to improve consistency and reliability; track recurring errors, document patterns, and support iterative evaluation cycles aligned with RLHF.

Basic Qualifications

Based in Germany and eligible to work as a remote contractor/employee per local requirements; fluent in German and English (reading, writing, and comprehension) to evaluate bilingual outputs; strong analytical skills with the ability to compare responses and explain trade-offs clearly; excellent attention to detail and consistency when applying rubrics and policies; comfort working with web tools, spreadsheets, and structured task queues; ability to follow instructions precisely and meet quality and throughput targets.

Preferred Qualifications

Prior experience in data labeling, prompt evaluation, QA evaluation, or RLHF-related tasks; familiarity with LLM behavior, common failure patterns, and large language model evaluation concepts; experience working with annotation guidelines and quality programs (audits, calibration, disagreement resolution); self-driven, reliable, and able to work independently in a remote environment; domain knowledge in areas such as customer support, technical writing, education, or content moderation.

Compensation

USD $35–$40 per hour (based on task complexity, quality results, and relevant experience).

How to Apply

Apply through Rexzone with a brief summary of your background, language proficiency (German/English), and any experience with evaluation, QA, data labeling, or annotation workflows. Selected candidates may complete a short skills assessment focused on ranking, reasoning, and annotation guidelines compliance.

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 tasks such as ranking model outputs, writing rationales, completing QA evaluation, validating labels, and following annotation guidelines to maintain training data quality.

  • Q: Do I need AI experience?

    AI experience is helpful but not required. We value strong reasoning, attention to detail, and the ability to learn evaluation rubrics and annotation guidelines compliance quickly.

  • Q: What languages are required?

    Fluency in both German and English is required because you will evaluate and compare bilingual model outputs.

  • Q: What domains are covered?

    You may evaluate outputs across general knowledge, writing quality, instruction-following, content safety labeling, and task-specific prompts, supporting RLHF 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

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