European Portuguese Linguistic Expert

About the Role

Mercor is seeking European Portuguese Linguistic Experts to support a collaborative AI research initiative with a premier laboratory. The position involves evaluating large language models (LLMs) to ensure they meet high standards for European Portuguese linguistic accuracy and cultural relevance. You will act as a specialist interface between linguistic expertise and machine learning, curating high-quality data to refine AI generation, interpretation, and overall performance. This role provides the opportunity to influence the advancement of language technology by applying your specialized knowledge of Portuguese linguistic structures.

Requirements

• The ideal candidate possesses native or near-native fluency in European Portuguese, demonstrating an excellent command of its grammar, syntax, and stylistics.
• Professional experience in fields such as translation, professional editing, linguistic annotation, or NLP data work is required for this role.
• You must have a strong understanding of European Portuguese nuances, including how it differs from Brazilian variants, alongside professional proficiency in English.
• A high level of attention to detail is essential for spotting subtle errors or unnatural phrasing, and you should be capable of communicating clearly within a distributed, remote team setting.
• While not strictly required, a genuine interest in the development of AI and large language models will be considered a valuable asset.

Responsibilities

• As a linguistic expert, you will evaluate the quality and accuracy of text generated by large language models across diverse tasks such as summarization, translation, grammar correction, and dialogue.
• You are expected to edit, refine, and rewrite content to ensure it meets the highest standards for European Portuguese, while also annotating text for complex grammatical, semantic, and syntactic features.
• A key part of the work involves identifying model errors or language gaps and collaborating with researchers to facilitate improvements.
• Furthermore, you will provide comprehensive linguistic feedback and analytical insights to guide the ongoing training and development phases of the model.

Benefits & Perks

• You will have the opportunity to contribute to cutting-edge AI research alongside a leading lab and work on high-impact projects that shape the future of advanced language systems.
• The role offers hands-on exposure to state-of-the-art AI development within a fast-moving environment where your specific expertise and judgment directly influence the trajectory of the project.