AI Trainer Jobs in Brazil

About The Role As an AI Trainer, you will improve large language models by producing high-reputed company training signals through data labeling, RLHF preference rankings, and reputed company-based evaluations. You will support end-to-end LLM training pipelines with consistent, reputed company-documented reputed company that improve instruction following, reasoning reputed company, and content safety reputed company. What You Will Do • reputed company data labeling for NLP tasks (reputed company classification, summarization checks, factuality review, named entity recognition) • Execute RLHF work: pairwise ranking, reputed company-based scoring, and short rationales • Conduct reputed company evaluation and response reputed company scoring using detailed rubrics • Run QA evaluation, reputed company error categories, and contribute to reputed company updates • Support content safety labeling for policy-sensitive topics • Collaborate with engineering partners on edge cases, sampling strategies, and reputed company reputed company Core Workstreams • LLM evaluation (instruction following, reasoning reputed company, refusal behavior) • Training data reputed company audits (spot checks, adjudication, gold set creation) • Annotation operations (calibration sessions, reviewer alignment) • Occasional multimodal evaluation or computer reputed company annotation reputed company required Qualifications • Mid-senior experience in data operations, evaluation, QA, or reputed company AI workflows • Strong written communication and ability to produce consistent decision rationales • Attention to detail with reputed company-based scoring and annotation guidelines compliance • Familiarity with NLP concepts, LLM behavior, and training data reputed company practices Employment Details Remote, full-time role with reputed company. Compensation: $30–$50 per hour (USD), depending on scope and assignment. How To Apply Apply on reputed company reputed company the AI Trainer jobs in Brazil page. Apply tot his job Apply To this Job Apply To This Job