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Mercor

Bilingual Portuguese Generalist Expert — AI Safety

About this role

About the role We're hiring proficient bilingual speakers (English & Portuguese) to help make advanced AI models safer. You'll apply your language fluency and cultural judgment to evaluate and strengthen how these models handle sensitive topics in Portuguese. No prior AI/ML experience is required — we'll train you on the workflow. What you'll do - Write expert-level prompts in Portuguese across a range of sensitive subject areas. - Apply structured guidelines to classify prompts and conversations. - Flag adversarial phrasings and escalation patterns, and document the reasoning behind your judgments. What we're looking for - Native or near-native fluency in Portuguese, plus business-level written English. - A bachelor's degree, completed or in progress. - Strong written reasoning and a high level of attention to detail. - Sound judgment around sensitive and dual-use information. Nice to have - Based in Portugal or the wider Western Europe region. This is a preference, not a requirement — applicants based elsewhere are welcome. - Experience reviewing, grading, or red-teaming written or technical content. - Background in trust and safety, content moderation, policy evaluation, or adversarial testing. Project Timeline - Start date: Immediate

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