Spanish (US) Linguistic Expert at Mercor

Spanish (US) Linguistic Expert | $40/hr | Part-time, Remote

Mercor is hiring Spanish (United States) linguistic experts for an AI research project run in partnership with a leading research lab. The work focuses on evaluating how well a large language model (LLM) performs on U.S. Spanish-language tasks, and on curating high-quality Spanish linguistic data to train and improve the model.

What the work involves

• Evaluating the quality and accuracy of LLM-generated Spanish text across use cases such as translation, summarization, dialogue, and grammar correction.
• Editing, refining, or rewriting Spanish content to meet linguistic and cultural standards for Spanish-speaking communities in the United States.
• Annotating Spanish text for grammatical, syntactic, and semantic features.
• Identifying model errors and language gaps, and collaborating with AI researchers to improve LLM performance.
• Providing detailed linguistic feedback and analysis to guide ongoing model training.

Who it's for

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

Pay and schedule

The role pays $40/hr on a part-time commitment. The position is remote.