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 model outputs, writing clear rationales, and executing QA evaluation. You will follow annotation guidelines compliance to strengthen training data quality and drive model performance improvement across real-world AI/LLM workflows.

Job Image

About the Role

As an AI Generalist Trainer at Rexzone, you will evaluate, rank, and QA model-generated responses in both German and English. Your work directly impacts RLHF pipelines, training data quality, and model performance improvement by producing high-signal judgments, reasoning, and validation notes that improve large language model evaluation outcomes.

Key Responsibilities

• Evaluate and rank model outputs against task requirements, safety policies, and user intent. • Perform QA evaluation on labeled tasks to ensure training data quality and annotation guidelines compliance. • Write concise rationales explaining ranking decisions, including reasoning about correctness, helpfulness, and safety. • Validate edge cases (ambiguity, multilingual nuances, policy boundaries) and flag inconsistencies for review. • Execute prompt evaluation and response comparison to support RLHF and large language model evaluation. • Apply content safety labeling when required and document decisions for auditability. • Track error patterns and provide feedback that supports model performance improvement. • Maintain throughput and accuracy targets while adhering to updated guidelines and workflows.

Basic Qualifications

• Must be based in Germany and able to work remotely from Germany. • Fluent in German and English (reading and writing), with strong command of tone, grammar, and nuance. • Strong analytical skills with the ability to compare outputs, spot contradictions, and assess evidence. • Excellent attention to detail and consistent application of annotation guidelines. • Comfortable working with web tools, task queues, and structured evaluation rubrics. • Ability to produce clear written rationales that reflect sound reasoning and validation.

Preferred Qualifications

• Prior experience in data labeling, prompt evaluation, QA evaluation, or content safety labeling. • Familiarity with LLM evaluation, RLHF concepts, and model behavior failure modes. • Experience interpreting complex guidelines and maintaining annotation guidelines compliance over time. • Self-driven, reliable, and able to work independently while meeting quality and throughput expectations.

Compensation

Hourly pay: USD $35–$40 per hour (rate depends on skills, performance, and project needs). Full-time, remote.

How to Apply

Apply to Rexzone with a brief summary of your Germany location, English/German proficiency, and any experience with evaluation, data labeling, or QA. Selected candidates will complete an assessment aligned to RLHF and large language model evaluation workflows.

Frequently Asked Questions

  • Q: Is this role remote?

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

  • Q: What tasks will I do?

    You will evaluate and rank AI outputs, perform QA evaluation, write rationales with clear reasoning, and complete validation steps to improve training data quality and support RLHF.

  • Q: Do I need AI experience?

    AI experience is helpful but not required. If you can follow annotation guidelines compliance and produce consistent evaluations, Rexzone will provide task guidelines and feedback loops.

  • Q: What languages are required?

    Fluency in both German and English is required for bilingual evaluation and prompt evaluation work.

  • Q: What domains are covered?

    Domains vary by project and may include general knowledge, customer-style assistance, reasoning tasks, and content safety labeling—all 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.

Respect at the Core of Everything

AI trainers are the heart of our company. We treat every expert with trust, humanity, and genuine appreciation. From personalized support to transparent communication, we build long-term relationships rooted in respect and care.

Ready to Shape the Future of AI Data Operations?

Apply Now.