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Mercor

Spanish (Spain) Linguistic Expert

$40/hr · Remote · Part-Time · Posted Oct 28, 2026

About this role

Mercor is seeking experienced Spanish (Spain) Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in Peninsular Spanish-language tasks and on curating high-quality Spanish linguistic data to train and improve the model's understanding and generation capabilities.

Key Responsibilities:

  • Evaluate the quality and accuracy of LLM-generated Spanish text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
  • Edit, refine, or rewrite Spanish content to meet linguistic and cultural standards for Spain.
  • Annotate Spanish text for grammatical, syntactic, and semantic features.
  • Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
  • Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.

You're a strong fit if you have:

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

Why Join

  • Contribute to cutting-edge AI research in partnership with a leading research lab.
  • Work on high-impact projects that directly support the development of advanced AI systems.
  • Gain hands-on exposure to state-of-the-art AI research and development.
  • Join a fast-moving project where your expertise and judgment can have a meaningful impact.

Details

  • Pay: $40/hr
  • Location: Remote
  • Type: Part-Time
  • Domain: Languages
  • Posted: Oct 28, 2026

About Mercor

Expert contracts with top AI labs: doctors, lawyers, engineers, PhDs and more. Hourly pay, fully remote. Typical pay is $30 – $200+/hr. See all Mercor jobs.

DomainExpert Jobs lists this role from Mercor. Pay, requirements and availability are set by Mercor and can change, so check the details there before you apply.

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