Remote Data Labeling Jobs UK

Rex.zone is hiring for a full-time remote role focused on training-data creation and evaluation for AI/ML systems. You will support production-grade pipelines across NLP, LLM evaluation/RLHF-style workflows, computer vision annotation, and content safety labeling with measurable quality targets and audit-ready documentation.What You Will DoLabel and review text, image, and multi-modal datasets using project rubrics and toolingPerform QA evaluation on peer outputs, escalate edge cases, and propose guideline clarificationsExecute prompt evaluation and LLM response rating to generate RLHF-ready preference dataConduct content safety labeling (e.g., harassment, self-harm, violence, adult content, regulated goods)Track errors, maintain audit trails, and participate in calibration sessions to improve inter-annotator agreementCollaborate with operations and engineering partners to refine instructions and reduce ambiguityRequired QualificationsExperience delivering professional data labeling or QA evaluation work with documented quality metricsStrong reading comprehension and ability to apply complex rubrics consistentlyFamiliarity with LLM evaluation concepts (preference ranking, rubric scoring, prompt evaluation)Comfort working with annotation tools, structured forms, and versioned guidelinesAbility to write concise rationales and document difficult casesPreferred QualificationsExposure to RLHF pipelines and large language model evaluationComputer vision annotation (boxes, polygons, keypoints)NLP labeling experience including named entity recognitionContent safety / trust & safety workflow experienceCompensationHourly range: $30–$50/hour (USD).Workplace: RemoteEmployment Type: Full-time