European Portuguese Linguistic Expert

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

Pay: $40/hour
Commitment: Part time

Mercor is seeking experienced European 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 European Portuguese-language tasks and on curating high-quality Portuguese linguistic data to train and improve the model's understanding and generation capabilities.

Key Responsibilities:

• Evaluate the quality and accuracy of LLM-generated Portuguese text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
• Edit, refine, or rewrite Portuguese content to meet linguistic and cultural standards for Portugal.
• Annotate Portuguese text for grammatical, syntactic, and semantic features.
• Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
• Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.

You're a strong fit if you have:

• Native or near-native fluency in European Portuguese, with excellent command over grammar, syntax, and stylistics.
• Professional experience in translation, editing, linguistic annotation, or NLP data work in Portuguese.
• Strong understanding of European Portuguese nuances, regional variations, register, and context-appropriate usage, including how it differs from Brazilian Portuguese.
• Professional fluency in English.
• Interest in AI and LLM-driven language technologies (preferred but not required).
• Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
• Clear communication skills and experience working in distributed, remote teams.

Why Join

• Contribute to cutting-edge AI research in partnership with a leading research lab.
• Work on high-impact projects that directly support the development of advanced AI systems.
• Gain hands-on exposure to state-of-the-art AI research and development.
• Join a fast-moving project where your expertise and judgment can have a meaningful impact.