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 through structured ranking, QA evaluation, and rationale writing to drive training data quality and model performance improvement.

About the Role

As a Germany-based English & German AI Generalist Trainer at Rexzone, you will evaluate and improve AI/LLM workflows by assessing model-generated outputs, performing RLHF-style preference ranking, and documenting clear reasoning. Your work directly supports training data quality, annotation guidelines compliance, and model performance improvement by producing high-quality evaluations used in large language model evaluation pipelines.

Key Responsibilities

Perform large language model evaluation by reviewing English and German prompts and responses; rank and compare multiple model outputs using RLHF-style preference judgments; execute QA evaluation to validate consistency, factuality, tone, safety, and policy adherence; write concise rationales that explain reasoning behind rankings and decisions; apply annotation guidelines compliance across tasks and escalate ambiguities; validate edge cases, run spot checks, and correct labeling errors to protect training data quality; track recurring issues and provide feedback that supports model performance improvement.

Basic Qualifications

Must be based in Germany and authorized to work from Germany; fluent in English and German (reading and writing) with strong command of grammar and nuance; strong analytical skills with the ability to evaluate competing responses and justify choices with clear reasoning; high attention to detail and ability to follow annotation guidelines compliance consistently; comfortable working independently in a remote setting while meeting quality and throughput targets.

Preferred Qualifications

Prior experience with data labeling, content evaluation, QA evaluation, or annotation work; familiarity with LLM evaluation, prompt evaluation, or RLHF concepts; experience with content safety labeling and policy-based review; self-driven, reliable, and able to handle ambiguous examples by seeking clarifications and proposing guideline improvements.

Compensation

USD $35–$40 per hour (hourly).

How to Apply

Apply through Rexzone with a short summary of your bilingual English/German experience and any evaluation, QA, or annotation background. Highlight examples of structured reasoning, ranking decisions, and guideline-driven review work relevant to large language model evaluation.

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 perform large language model evaluation tasks such as prompt evaluation, ranking and preference judgments (RLHF-style), QA evaluation, validation of outputs against annotation guidelines, and writing rationales that explain your reasoning.
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 is provided for project-specific workflows.
Q: What languages are required?
Fluency in English and German is required, including the ability to read, write, and evaluate nuanced text in both languages.
Q: What domains are covered?
Domains commonly include general knowledge, writing quality, instruction-following, content safety labeling, and other areas relevant to training data quality and model performance improvement in AI/LLM systems.

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.