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 by ranking, QA evaluation, and writing clear rationales that drive training data quality and model performance improvement.

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About the Role

As a Germany-Based English & German AI Generalist Trainer at Rexzone, you will evaluate and improve AI/LLM workflows by assessing model-generated outputs, ranking alternatives, and documenting reasoning. Your work directly supports RLHF, large language model evaluation, and training data quality through consistent application of annotation guidelines compliance, content safety labeling, and training data quality checks.

Key Responsibilities

Evaluate and compare model-generated answers in English and German using defined rubrics; Rank multiple outputs and provide defensible reasoning and concise rationales; Perform QA evaluation on labeled datasets to ensure training data quality and annotation guidelines compliance; Validate edge cases, identify failure modes, and flag policy or content safety labeling issues; Apply prompt evaluation and LLM evaluation methods to measure helpfulness, correctness, tone, and safety; Review and reconcile disagreements to improve consistency and inter-annotator alignment; Document decisions, follow workflow instructions, and escalate unclear guidelines for clarification.

Basic Qualifications

Must be based in Germany and authorized to work as a contractor/employee as applicable; Fluent in English and German (C1+), able to write clear rationales in both; Strong analytical skills with the ability to compare nuanced outputs and justify rankings; High attention to detail and comfort following strict annotation guidelines compliance; Ability to perform repetitive evaluation and validation tasks while maintaining quality targets; Reliable internet access and ability to work remotely full-time.

Preferred Qualifications

Prior experience with AI data labeling, RLHF, prompt evaluation, or large language model evaluation; Familiarity with LLM behavior, common failure modes, and quality rubrics; Experience in QA evaluation, auditing, or training data quality programs; Self-driven, organized, and comfortable working independently with remote teams; Background in linguistics, translation, content moderation, or technical writing is a plus.

Compensation

USD $35–$40 per hour, full-time remote. Final rate within range depends on skills assessment, evaluation performance, and role alignment.

How to Apply

Apply to Rexzone with a brief summary of your English/German proficiency, Germany location, and any experience in evaluation, QA, data labeling, or LLM-related work. Selected candidates will complete a short qualification assessment focused on ranking, reasoning, and annotation quality.

Frequently Asked Questions

  • Q: Is this role remote?

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

  • Q: What tasks will I do?

    You will perform large language model evaluation tasks such as evaluation and ranking of model outputs, QA evaluation of labeled data, prompt evaluation, validation of edge cases, and writing clear rationales to support training data quality and model performance improvement.

  • Q: Do I need AI experience?

    AI experience is helpful but not required. We value strong analytical skills, attention to detail, and the ability to follow annotation guidelines compliance; you will be assessed on practical evaluation and reasoning tasks.

  • Q: What languages are required?

    Fluency in both English and German is required, including the ability to read, evaluate, and write rationales in both languages.

  • Q: What domains are covered?

    Domains vary and can include general knowledge, reasoning, writing quality, translation, instruction following, and content safety labeling, all aligned to 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.

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