Mercor · Language
Spanish Linguistic Expert - review AI outputs in your specialty
Listed on Mercor as “Spanish Linguistic Expert”
What this actually is
You evaluate AI responses in the target language, rate translation quality, write prompts in your native language, and flag errors. Not professional translation work in the traditional sense. The platform title (Spanish Linguistic Expert) reflects the rate band and the expertise required, not the day-to-day work.
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Can you do this on your visa?
F-2 / F-4 / F-5 / F-6: open. E-1 to E-7: needs concurrent-employment permit. D-2 / D-4 students: S-3 permit, 20 hr/week cap. D-10 / D-8: case by case.
Korean tax on USD income
First 5 years in Korea: foreign-source income only taxed if remitted into Korea. After year 5: worldwide income. Full tax guide.
Original posting from Mercor
Mercor is seeking experienced Spanish 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 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.
- 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, with excellent command over grammar, syntax, and stylistics.
- 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 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.
Quoted from Mercor’s public listing on 2026-09-15. We don’t edit platform copy; honest framing is in the title and the “what this actually is” block above.
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About Mercor
AI-interview-based talent network. One application, voice interview with their AI, then matched to projects across coding, research, and specialist work. Pay scales with track and seniority.
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4.1/5 on Glassdoor, fastest-growing platform in the category (+509% YoY). What the AI video interview actually asks, real pay across coding/research/medical/legal/finance tracks ($25-$200/hr), and the project-availability problem.
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