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 QA-checking model outputs.

About the Role

As a Germany-based English & German AI Generalist Trainer at Rexzone, you will evaluate and improve AI systems by assessing model-generated responses in both languages. Your work directly supports RLHF and large language model evaluation by applying annotation guidelines compliance, producing clear rationales, and ensuring training data quality for model performance improvement. You will perform prompt evaluation, ranking, QA evaluation, and validation of outputs for correctness, helpfulness, and safety.

Key Responsibilities

Evaluate and rank model outputs for quality, relevance, and policy alignment; perform QA evaluation to validate accuracy, logic, and language quality in English and German; write concise reasoning rationales that justify rankings and highlight errors; apply annotation guidelines compliance and document edge cases for consistent labeling; conduct prompt evaluation and identify failure modes that impact model performance improvement; validate training data quality by checking consistency, completeness, and formatting; perform content safety labeling and flag unsafe or disallowed content; collaborate asynchronously to clarify guidelines, report issues, and improve evaluation rubrics.

Basic Qualifications

Must be based in Germany and authorized to work remotely from Germany; fluent in English and German (C1/C2) with strong writing skills in both; strong analytical skills with the ability to compare outputs and justify rankings; excellent attention to detail for consistent evaluation, QA, and validation; ability to follow structured annotation guidelines and maintain annotation guidelines compliance; reliable internet connection and ability to meet quality and throughput expectations in a remote environment.

Preferred Qualifications

Prior experience with data labeling, prompt evaluation, QA evaluation, or content moderation; familiarity with LLM evaluation, RLHF concepts, or large language model evaluation workflows; experience writing clear rationales and using rubrics to support model performance improvement; self-driven, organized, and comfortable working independently with minimal supervision; background in linguistics, translation, technical writing, or domain research is a plus.

Compensation and Schedule

This is a full-time remote role. Compensation is $35–$40 USD per hour, depending on skills and evaluation performance. You will be expected to deliver consistent training data quality through ongoing evaluation, ranking, QA, and validation tasks.

How to Apply

Apply to Rexzone with your resume/CV and a short summary of your bilingual English/German experience. If shortlisted, you will complete an assessment focused on large language model evaluation, prompt evaluation, ranking, and annotation guidelines compliance.

Frequently Asked Questions

Q: Is this role remote?
Yes. This is a full-time Remote role, but you must be based in Germany.
Q: What tasks will I do?
You will evaluate, rank, and QA-check LLM outputs; write reasoning rationales; perform validation, prompt evaluation, data labeling, and content safety labeling to support training data quality and model performance improvement.
Q: Do I need AI experience?
AI experience is helpful but not required. You must be able to follow annotation guidelines, apply consistent evaluation criteria, and produce high-quality rationales; training is provided for the workflow.
Q: What languages are required?
Fluency in English and German is required, with strong reading and writing ability in both.
Q: What domains are covered?
You will evaluate a variety of general domains such as everyday knowledge, customer-style queries, writing tasks, reasoning, and safety-sensitive content within large language model evaluation.

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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