Portuguese Linguistic Experts
$50/hIndicative range provided by Mercor
Posted on October 26, 2026 · Applications until December 3, 2026
Remote jobs for Portuguese speakers
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The specialist evaluates LLM-generated Portuguese text for accuracy and quality, edits content to linguistic and cultural standards, and gives detailed feedback to guide model training. Native or near-native Portuguese fluency and professional translation or editing experience are essential.
Description in English, as published by Mercor.
Mercor is seeking experienced Portuguese Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in Portuguese-language tasks and on curating high-quality Portuguese linguistic data to train and improve the model's understanding and generation capabilities.
Key Responsibilities:
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Evaluate the quality and accuracy of LLM-generated Portuguese text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
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Edit, refine, or rewrite Portuguese content to meet linguistic and cultural standards.
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Annotate Portuguese text for grammatical, syntactic, and semantic features.
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Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
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Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.
You're a strong fit if you have:
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Native or near-native fluency in Portuguese, with excellent command over grammar, syntax, and stylistics.
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Professional experience in translation, editing, linguistic annotation, or NLP data work in Portuguese.
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Strong understanding of linguistic nuances, regional variations, and context-appropriate usage.
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Interest in AI and LLM-driven language technologies (preferred but not required).
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Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
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Clear communication skills and experience working in distributed, remote teams.
Why Join
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Contribute to cutting-edge AI research in partnership with a leading research lab.
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Work on high-impact projects that directly support the development of advanced AI systems.
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Gain hands-on exposure to state-of-the-art AI research and development.
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Join a fast-moving project where your expertise and judgment can have a meaningful impact.
Open worldwide
About Mercor
Mercor is a US marketplace hiring remote experts for AI and consulting projects, from law to engineering. The original posting is on their site.
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