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Senior Data Annotator - RLHF & LLM Evaluation (Remote

Remote / Online - Candidates ideally in
Zürich, 8058, Zurich, Kanton Zürich, Switzerland
Listing for: Rex.zone
Remote/Work from Home position
Listed on 2026-08-04
Job specializations:
  • IT/Tech
    Data Annotation/ AI Labeling, AI Evaluation
Salary/Wage Range or Industry Benchmark: 33393 - 55656 CHF Yearly CHF 33393.00 55656.00 YEAR
Job Description & How to Apply Below
Position: Senior Data Annotator - RLHF & LLM Evaluation (Remote)
Location: Zürich

Rex.zone is seeking a mid-senior data annotation professional to support AI/ML training pipelines from a distributed, remote team. You will perform senior-level data annotation and evaluation across multiple domains, balancing speed with data quality.

You will follow detailed rubrics, provide written rationales for ambiguous cases, participate in calibration sessions, and contribute to RLHF, NLP labeling, CV annotation, and content safety labeling.

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Position Requirements
10+ Years work experience
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