Every job listed here is analyzed by our AI to identify worldwide hiring — not just “remote in the US.” Our classification is actively being improved, some results may be inaccurate.
Worldwide Remote
Jobs reviewed for worldwide hiring.
Real Hiring Data
Country flags show the countries where each company has team members
Updated Hourly
Fresh jobs synced from thousands of career pages
Freelance Generalist (Remote, Brazil) Rex.zone supports real AI/ML production workflows. In this remote, full-time freelance generalist role, you will contribute to LLM training pipelines and evaluation operations through high-quality labeling, review, and rubric-based decisions. What You Will Do Perform data labeling for text, image, and mixed-modality datasets Complete RLHF evaluation (ranking, preference comparisons, rubric-based scoring) Conduct prompt evaluation and response quality review Run QA evaluation checks for guidelines compliance and consistency Label and review content safety categories per policy Document edge cases and propose guideline clarifications Required Qualifications Mid-Senior experience in operations, QA, support, or structured review workflows Strong attention to detail and consistent rubric-based judgment Strong written communication for documenting decisions Comfort with web-based annotation tools and spreadsheet-style QA trackers Reliable internet and availability for remote, full-time freelance work Quality Standards Meet accuracy targets via calibration, spot checks, and audits Maintain audit-ready notes and protect data confidentiality How To Apply Apply via Rex.zone and include a brief summary of relevant operations/QA or AI data workflow experience. Selected candidates may complete a short qualification task.