Germany-Based English & German AI Generalist Trainer 2026 May

Rexzone is hiring Germany-based, bilingual (English/German) AI Generalist Trainers to support AI/LLM workflows through RLHF, large language model evaluation, and training data quality improvement by evaluating, ranking, and validating model outputs with clear rationales.

About the Role

As a Germany-based English & German AI Generalist Trainer at Rexzone, you will evaluate and improve large language model outputs in real-world AI/LLM workflows. Your work will focus on RLHF-style ranking, prompt evaluation, QA evaluation, and reasoning-based feedback to drive model performance improvement. You will follow annotation guidelines compliance requirements, apply consistent evaluation rubrics, and contribute directly to training data quality across multilingual (German/English) tasks.

Key Responsibilities

Evaluate and rank model-generated responses against project rubrics and annotation guidelines; perform QA evaluation to identify errors, inconsistencies, and policy violations; write clear rationales that explain reasoning, preference decisions, and correctness; validate outputs for factuality, coherence, safety, and instruction-following; conduct prompt evaluation and pairwise comparisons to support RLHF pipelines; review labeled data for training data quality, including annotation guidelines compliance; flag edge cases, ambiguous instructions, and data quality risks; apply content safety labeling where required and document outcomes; collaborate asynchronously to improve evaluation consistency and model performance improvement.

Basic Qualifications

Must be based in Germany and able to work remotely full-time. Fluency in both German and English (reading, writing, and comprehension) is required. Strong analytical skills, attention to detail, and the ability to provide structured reasoning and consistent judgments are essential. Comfortable following detailed annotation guidelines and meeting quality targets in large language model evaluation workflows.

Preferred Qualifications

Prior experience in data labeling, annotation, QA, search evaluation, content moderation, or AI evaluation. Familiarity with LLM evaluation, RLHF concepts, and prompt evaluation methods. Self-driven, reliable, and able to manage time independently in a remote environment. Experience applying content safety labeling and improving training data quality through iterative feedback.

Compensation

USD $35–$40 per hour (hourly), depending on skills and task scope. Full-time remote role based in Germany.

How to Apply

Apply to Rexzone with a resume/CV highlighting bilingual German/English writing skills, evaluation or QA experience, and any exposure to AI/LLM workflows. Include a brief note on your approach to consistent ranking, reasoning, and annotation guidelines compliance.

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 perform large language model evaluation tasks such as evaluation, ranking, QA evaluation, prompt evaluation, validation, and writing rationales to support RLHF and training data quality.
Q: Do I need AI experience?
AI experience is helpful but not required. You must be able to follow annotation guidelines compliance standards, apply consistent judgment, and produce clear reasoning.
Q: What languages are required?
Fluency in both German and English is required for bilingual evaluation and writing tasks.
Q: What domains are covered?
Domains vary by project and may include general knowledge, summarization, translation, customer support style writing, content safety labeling, and other multilingual instruction-following scenarios.

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.