Remote Spanish Linguistic Expert for AI Training

Mercor; San Francisco (CA); Hybrid; MXN 1,272,000 - 1,781,000; Full time

Job summary

Mercor is a remote-friendly company that connects elite creative and technical talent with AI research labs. We’re seeking a Spanish Linguistic Expert to evaluate and improve LLM-generated Spanish content across translation, summarization, dialogue, and grammar tasks.

This contract role requires native or near-native Spanish, strong linguistic intuition, and experience in translation, editing, or NLP data work.

Qualifications

• Native or near-native fluency in Spanish with excellent grammar and stylistics.
• Professional experience in translation, editing, linguistic annotation, or NLP data work in Spanish.
• Strong understanding of linguistic nuances and regional variations.
• Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
• Clear communication skills and experience working in distributed, remote teams.

Responsibilities

• Evaluate quality and accuracy of LLM-generated Spanish text across translation, summarization, dialogue, and grammar correction.
• Edit, refine, or rewrite Spanish content to meet linguistic and cultural standards.
• Annotate Spanish text for grammatical, syntactic, and semantic features.
• Identify model errors and language gaps.
• Collaborate with AI researchers to improve LLM performance.
• Provide detailed linguistic feedback to guide model training efforts.

Skills

Spanish fluency

Linguistic annotation

NLP data work

Attention to detail

Remote collaboration

Job description

Mercor is a remote-friendly company that connects elite creative and technical talent with AI research labs. We’re seeking a Spanish Linguistic Expert to evaluate and improve LLM-generated Spanish content across translation, summarization, dialogue, and grammar tasks.

This contract role requires native or near-native Spanish, strong linguistic intuition, and experience in translation, editing, or NLP data work.