Germany-Based English & German AI Generalist Trainer 2026 May

Remote, full-time AI Generalist Trainer role for Germany-based bilingual (German/English) professionals focused on RLHF, large language model evaluation, and training data quality to drive model performance improvement at Rexzone.

Job Image

About the Role

Rexzone is hiring Germany-based English & German AI Generalist Trainers to support AI/LLM workflows through RLHF-style evaluation, prompt evaluation, and large language model evaluation. You will assess model-generated outputs, rank responses, write clear rationales, and perform QA evaluation to improve training data quality and enable model performance improvement. This role is fully remote and requires professional fluency in both German and English, strong analytical thinking, and consistent annotation guidelines compliance.

Key Responsibilities

• Evaluate and rank model outputs in German and English using defined rubrics and annotation guidelines. • Perform RLHF-aligned preference ranking and prompt evaluation to identify the best responses. • Write concise, evidence-based reasoning and rationales that explain rankings and decisions. • Conduct QA evaluation and validation checks to ensure training data quality and reduce labeling errors. • Apply content safety labeling policies and escalate sensitive or ambiguous cases per guidelines. • Audit completed tasks for annotation guidelines compliance and provide actionable feedback to improve consistency. • Track recurring model failure patterns and document insights that support model performance improvement.

Basic Qualifications

• Must be based in Germany and able to work remotely. • Full professional fluency in German and English (reading, writing, and comprehension). • Strong analytical skills with the ability to compare options, spot inconsistencies, and justify decisions. • High attention to detail, including careful adherence to annotation guidelines compliance. • Comfortable working with web-based annotation tools and following structured QA and validation processes.

Preferred Qualifications

• Prior experience in data labeling, content moderation, search relevance, or quality review. • Familiarity with LLM evaluation, RLHF concepts, or rubric-based ranking of model outputs. • Experience writing clear rationales and applying consistent decision criteria across large volumes of work. • Self-driven, reliable, and able to manage time effectively in a remote environment. • Interest in improving training data quality to support model performance improvement.

Compensation and Work Setup

• Pay: $35–$40 USD per hour. • Remote: Yes (Germany-based requirement). • Employment: Full-time. If you are bilingual in German and English and want to contribute to large language model evaluation work that improves real-world AI systems, apply to Rexzone.

Frequently Asked Questions

  • Q: Is this role remote?

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

  • Q: What tasks will I do?

    You will evaluate and rank model-generated outputs, perform QA evaluation and validation, follow annotation guidelines, write reasoning/rationales, and complete prompt evaluation tasks to improve training data quality.

  • Q: Do I need AI experience?

    AI experience is helpful but not required. You must be able to follow rubrics, apply consistent judgment, and maintain annotation guidelines compliance; we value analytical thinking and attention to detail.

  • Q: What languages are required?

    Professional fluency in both German and English is required, since you will evaluate content and write rationales in both languages.

  • Q: What domains are covered?

    Tasks may span general knowledge, customer-style conversations, helpfulness and factuality checks, content safety labeling, and large language model evaluation scenarios aligned with 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.

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.