Mercor

Spanish Linguistic Experts

RemoteCONTRACTORPosted 2026-10-2750 USD/hour
AI EvaluationLinguisticsSpanishAI EvaluationTranslation

About the role

Mercor is seeking experienced Spanish Linguistic Experts for an AI research project with a leading research lab. The work focuses on evaluating how well a large language model performs in Spanish and curating high-quality Spanish data to improve it.

Key responsibilities

  • Evaluate the quality and accuracy of AI-generated Spanish text (translation, summarization, dialogue, 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
  • Provide detailed linguistic feedback to guide model training

Requirements

  • Native or near-native fluency in Spanish, with excellent grammar, syntax and style
  • Professional experience in translation, editing, linguistic annotation or NLP data work in Spanish
  • Strong understanding of linguistic nuances, regional variations and context-appropriate usage
  • Interest in AI and language technology (preferred, not required)
  • Excellent attention to detail and clear communication in remote teams

Contract and payment terms

  • Independent contractor, fully remote, on your own schedule
  • $50/hour; projects can be extended, shortened or concluded early depending on needs and performance
  • Weekly payments via Stripe or Wise based on services rendered
  • Mercor cannot support H1-B or STEM OPT candidates at this time
About the company

Marketplace connecting AI labs with expert human trainers and evaluators.

Before the test

Want to improve your chances of getting accepted?

Skim the interview guide before applying: setup, answer style, common rejection reasons, and a quick prep plan.

Read interview tips Also read the assessment test tips