Remote Spanish NLP Linguist for AI Model Evaluation

Mercor; Madrid; Remote; EUR 51,000 - 72,000; Part time

Job summary

Mercor is seeking a Spanish Linguistic Expert for a remote contract role. You will evaluate and refine LLM-generated Spanish content across translation, summarization, dialogue, and grammar correction.

Responsibilities include annotating linguistic features, identifying model gaps, and providing detailed feedback to AI researchers to improve performance. Native or near-native Spanish, strong grammar, and NLP data work experience are required.

Qualifications

• Native or near-native fluency in Spanish with strong grammar and style.
• Experience in translation, editing, linguistic annotation, or NLP data work in Spanish.
• Understanding of linguistic nuances and regional variations.
• Attention to detail and ability to spot errors.
• Experience working in distributed, remote teams.

Responsibilities

• Evaluate quality and accuracy of LLM-generated Spanish text across use cases.
• Edit, refine, or rewrite Spanish content to meet standards.
• Annotate Spanish text for grammatical, syntactic, semantic features.
• Identify model errors and language gaps; collaborate with AI researchers.
• Provide linguistic feedback to guide model training.

Skills

Spanish fluency

Translation experience

Editing

Linguistic annotation

NLP data work (Spanish)

Attention to detail

Communication skills

Remote team experience

Job description

Mercor is seeking a Spanish Linguistic Expert for a remote contract role. You will evaluate and refine LLM-generated Spanish content across translation, summarization, dialogue, and grammar correction.

Responsibilities include annotating linguistic features, identifying model gaps, and providing detailed feedback to AI researchers to improve performance. Native or near-native Spanish, strong grammar, and NLP data work experience are required.