European Portuguese NLP Linguist — Part-Time

Mercor; United States; Remote; USD 45,000 - 65,000; Part time

Job summary

Mercor is seeking experienced European Portuguese Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. The role focuses on evaluating how an AI model performs in European Portuguese tasks and curating high-quality Portuguese linguistic data to train and improve the model's understanding and generation capabilities.

Responsibilities include evaluating outputs, editing for Portugal-specific linguistic standards, annotating linguistic features,

Qualifications

• Native or near-native fluency in European Portuguese.
• Professional experience in translation, editing, linguistic annotation, or NLP data work in Portuguese.
• Professional fluency in English.
• Excellent attention to detail and ability to spot subtle errors.

Responsibilities

• Evaluate the quality and accuracy of LLM-generated Portuguese text across use cases.
• Edit, refine, or rewrite Portuguese content for Portugal.
• Annotate Portuguese text for grammatical, syntactic, and semantic features.
• Identify model errors and language gaps and collaborate with AI researchers to improve performance.
• Provide detailed linguistic feedback to guide training efforts.

Skills

European Portuguese fluency

English proficiency

Translation/editing/Linguistic data

Job description

Mercor is seeking experienced European Portuguese Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. The role focuses on evaluating how an AI model performs in European Portuguese tasks and curating high-quality Portuguese linguistic data to train and improve the model's understanding and generation capabilities.

Responsibilities include evaluating outputs, editing for Portugal-specific linguistic standards, annotating linguistic features,