Germany-Based English & German AI Generalist Trainer (Remote, Full-Time) 2026 May

Rexzone is hiring Germany-based, bilingual (English/German) AI Generalist Trainers to support large language model evaluation through RLHF-style ranking, prompt evaluation, and QA evaluation. You will assess model-generated outputs, write clear rationales, follow annotation guidelines compliance, and help drive training data quality and model performance improvement across real-world domains.

About the Role

As a Germany-based English & German AI Generalist Trainer at Rexzone, you will evaluate and improve AI systems by reviewing, ranking, and validating model outputs in both languages. Your work supports RLHF workflows and large language model evaluation by producing high-quality judgments, rationales, and issue flags that directly impact training data quality and model performance improvement.

Key Responsibilities

Evaluate and rank model-generated responses for helpfulness, correctness, safety, and instruction-following; perform prompt evaluation and QA evaluation against rubric criteria; write concise, well-structured reasoning rationales that justify rankings; validate annotations for consistency, bias, and policy adherence; apply annotation guidelines compliance and escalate guideline gaps or edge cases; conduct content safety labeling and flag policy-violating or risky outputs; run quality checks to improve training data quality and reduce annotation error rates; collaborate asynchronously with operations to clarify requirements and resolve disagreements using evidence-based reasoning.

Basic Qualifications

Based in Germany and authorized to work as an independent remote contributor; fluent in German and English (reading and writing) with strong grammar and style awareness; strong analytical skills with the ability to compare alternatives and justify decisions; exceptional attention to detail and consistency across repeated judgments; comfortable working with sensitive content under clear policies; reliable internet connection and ability to meet quality and throughput targets.

Preferred Qualifications

Prior experience in data labeling, content moderation, QA, search evaluation, or annotation programs; familiarity with LLM evaluation, RLHF, or prompt engineering concepts; experience following detailed rubrics and producing audit-ready rationales; self-driven, organized, and able to manage time independently in a remote setting.

Compensation

USD $35–$40 per hour. This is a full-time, remote role for Germany-based candidates.

How to Apply

Apply to Rexzone with a resume/CV highlighting bilingual English/German proficiency and any evaluation, QA, or annotation experience. Shortlisted candidates may complete a skills assessment focused on large language model evaluation, ranking, and reasoning quality.

Frequently Asked Questions

Q: Is this role remote?
Yes. This is a fully remote, full-time role for candidates based in Germany.
Q: What tasks will I do?
You will perform large language model evaluation tasks such as evaluating and ranking model outputs, completing prompt evaluation, doing QA evaluation, writing reasoning rationales, validating results, and applying annotation guidelines compliance (including content safety labeling when required).
Q: Do I need AI experience?
AI experience is helpful but not required. If you can follow rubrics, demonstrate strong analytical reasoning, and maintain training data quality, Rexzone will provide guidelines and task-specific training.
Q: What languages are required?
Fluency in both German and English is required, since you will evaluate and write in both languages.
Q: What domains are covered?
Domains vary and may include general knowledge, customer-style conversations, summarization, rewriting, reasoning, and content safety topics, all focused on model performance improvement through consistent evaluation and high-quality annotations.

230+Domains Covered

120K+PhD, Specialist, Experts Onboarded

50+Countries Represented

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