Germany-Based English & German AI Generalist Trainer 2026 May

Rexzone is hiring Germany-based bilingual (German/English) AI Generalist Trainers to support RLHF and large language model evaluation by rating, ranking, and validating model outputs. You will apply annotation guidelines compliance to improve training data quality and drive model performance improvement through consistent, well-reasoned evaluations and QA evaluation across diverse content types.

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About the Role

As a Germany-Based English & German AI Generalist Trainer at Rexzone, you will evaluate and improve AI systems by assessing model-generated responses in English and German. Your work supports RLHF, large language model evaluation, and training data quality initiatives by producing high-signal ratings, pairwise rankings, validations, and written rationales that enable model performance improvement.

Key Responsibilities

Perform large language model evaluation by scoring and ranking responses against rubrics; execute QA evaluation through audits, consistency checks, and error triage; write clear rationales explaining reasoning and trade-offs; validate outputs for factuality, instruction-following, tone, and safety; follow annotation guidelines compliance and escalate unclear cases; contribute to prompt evaluation and dataset reviews to improve training data quality; support content safety labeling and policy-driven decisions; track edge cases and document patterns to enable model performance improvement.

Basic Qualifications

Must be based in Germany and able to work remotely from Germany; fluent in both German and English (reading and writing); strong analytical skills with the ability to compare nuanced outputs and justify decisions; exceptional attention to detail and consistency; comfortable following annotation guidelines compliance and structured rubrics; reliable internet connection and ability to meet full-time productivity and quality targets.

Preferred Qualifications

Experience in data labeling, RLHF, prompt evaluation, or LLM evaluation; familiarity with LLM behavior (hallucinations, instruction-following, safety constraints) and large language model evaluation workflows; prior work with annotation tools, QA checklists, and training data quality processes; self-driven, organized, and comfortable working independently in a remote setting.

How to Apply

Apply to Rexzone with a concise resume highlighting bilingual German/English writing ability, evaluation or QA experience, and any AI/annotation background. Candidates may be asked to complete a short skills assessment focused on ranking, reasoning, validation, 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 evaluate and rank model outputs, perform QA evaluation and validation, write rationales explaining reasoning, and follow annotation guidelines compliance to improve training data quality and support 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 learn RLHF and large language model evaluation workflows quickly.

  • Q: What languages are required?

    Fluency in both German and English is required, with strong reading and writing skills in each.

  • Q: What domains are covered?

    Domains may include general knowledge, customer-style assistance, safety and content policy scenarios, and bilingual writing tasks, including content safety labeling, prompt evaluation, and training data quality reviews.

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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