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 assessing, ranking, and QA-checking model outputs to strengthen training data quality and drive model performance improvement.

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About the Role

As a Germany-based English & German AI Generalist Trainer at Rexzone, you will evaluate large language model outputs within RLHF-style workflows. You will compare responses, rank alternatives, write clear rationales, and validate annotation decisions to improve training data quality. This role is fully remote and full-time, requiring strong bilingual proficiency and consistent annotation guidelines compliance across English and German tasks.

What You Will Do

You will complete prompt evaluation and LLM evaluation tasks by rating and ranking model-generated answers, performing QA evaluation on labeled datasets, and documenting reasoning. You will validate edge cases, flag content safety labeling issues, and apply annotation guidelines to maintain reliable, auditable training data quality for ongoing model performance improvement.

Responsibilities

Evaluate model-generated outputs for helpfulness, correctness, and policy alignment; rank multiple responses and select best outputs; perform QA and validation checks on labels and rationales; write concise reasoning to justify rankings and decisions; follow annotation guidelines compliance and escalate unclear cases; support content safety labeling and error analysis to strengthen training data quality and large language model evaluation.

Basic Qualifications

Must be based in Germany; fluent in both German and English (professional reading and writing); strong analytical skills with structured reasoning; high attention to detail and ability to follow annotation guidelines compliance; comfortable working with web tools and spreadsheets; able to produce consistent, high-quality evaluations and QA results in a remote environment.

Preferred Qualifications

Prior experience in data labeling, prompt evaluation, QA evaluation, or content moderation; familiarity with RLHF, LLM evaluation, and training data quality concepts; experience writing clear rationales and applying rubrics; self-driven, reliable, and able to manage workload independently while meeting quality targets.

How to Apply

Apply via Rexzone and include a short summary of your bilingual (English/German) experience, any annotation or evaluation work, and your availability. Candidates who demonstrate strong reasoning, consistent QA, and careful validation will be prioritized.

Frequently Asked Questions

  • Q: Is this role remote?

    Yes. This is a fully remote, full-time role for candidates based in Germany.

  • Q: What tasks will I do?

    You will perform large language model evaluation tasks including prompt evaluation, response ranking, writing rationales, QA evaluation, and validation 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 consistent annotation guidelines compliance; training and feedback loops are provided.

  • Q: What languages are required?

    Fluency in both German and English is required, as tasks include bilingual evaluation and labeling.

  • Q: What domains are covered?

    Domains vary and may include general knowledge, reasoning, writing quality, instruction-following, and content safety labeling within RLHF and LLM 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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