Spanish Linguistic Expert

Mercor

. Evaluate the quality and accuracy of LLM-generated Spanish text across translation, summarization, dialogue, and grammar-correction use cases .

Posted 10/27/2026contractRemote • United StatesMid-LevelSenior💰 $50 per hourWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates native or near-native fluency in Spanish with a strong command of grammar, syntax, and stylistics, alongside professional experience in translation, editing, and linguistic annotation. Capable of providing detailed linguistic feedback to enhance AI systems and improve LLM performance.

Highest-signal resume keywords

Native Or Near-Native Fluency In SpanishTranslation ExperienceLinguistic AnnotationAttention To DetailClear Communication Skills

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Grammar ProficiencySyntactic AnalysisSemantic AnalysisEditing SkillsCultural Standards ComplianceError IdentificationAI Language Technologies UnderstandingNLP Data Work

Soft Skills

Independent WorkCollaboration In Remote Teams

Industry Keywords

LLM-Generated Text EvaluationSpanish NLPLinguistic FeedbackModel TrainingLanguage Gaps Identification

About the role

Key responsibilities & impact

Evaluate the quality and accuracy of LLM-generated Spanish text across translation, summarization, dialogue, and grammar-correction use cases
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 and analysis to guide model training
Complete projects on an independent, flexible schedule
Work on projects training and enhancing AI systems

Requirements

What you’ll need

Native or near-native fluency in Spanish, with excellent command of grammar, syntax, and stylistics
Professional experience in translation, editing, linguistic annotation, or Spanish NLP data work
Strong understanding of linguistic nuances, regional variations, and context-appropriate usage
Interest in AI and LLM-driven language technologies (preferred but not required)
Excellent attention to detail and ability to identify subtle errors or unnatural phrasing
Clear communication skills and experience working in distributed, remote teams
Must be able to work as an independent contractor
H1-B or STEM OPT candidates are not supported

Benefits

Comp & perks

Contribute to cutting-edge AI research in partnership with a leading research lab
Work on high-impact projects supporting advanced AI systems
Gain hands-on exposure to state-of-the-art AI research and development
Flexible schedule; work on your own schedule
Weekly payments via Stripe or Wise
Competitive pay
Referral opportunity earning up to $200 per successful referral