Mercor is seeking native **Spanish** speakers with exceptional writing skills to contribute to a high-impact AI research project with a leading lab. Freelancers will author **Spanish/English** prompt-golden answer pairs that train and evaluate advanced language models. This is a short-term, flexible opportunity for professionals who combine language mastery, strong critical thinking, and a knack for instructional clarity. Adecuado for those who enjoy distilling complex concepts into well-crafted, culturally grounded **Spanish** text while maintaining technical precision in English.
**Job Details**
**Multilingual Prompt Design & Optimization**:
Create detailed prompts in Spanish and/or English with multiple constraints and instructions, ensuring natural phrasing and real-world relevance for Spanish-speaking users.
**Define and Document Evaluation Standards**:
Establish high-level expectations for correct responses in Spanish consumer contexts, and develop comprehensive rubrics that account for linguistic nuance, tone, and cultural conventions.
**Model Testing and Grading (Bilingual)**:
Run prompts through models and assess preliminary outputs for accuracy, fluency, and cultural fit in Spanish, comparing results against English where needed.
**Benchmarking & Quality Assurance**:




Collaborate in QA review processes to ensure prompt tasks and rubrics meet rigor—maintaining consistency and reliability across Spanish-language benchmarks before integration into official evaluations.
**Minimum Qualifications**
- Native-level fluency in Spanish (written) with strong reading/writing ability in English.
- BS or BA from a reputable institution (completed or in progress).
- Strong writing and critical thinking skills.
- Ability to work independently and meet deadlines.
- Significant familiarity with ChatGPT or similar tools for personal decision-making, hobbies, or general interests.
- Based in **Spain** (or able to reliably produce **Spain-specific**, culturally accurate Spanish). Mexico is also acceptable.
**Preferred Qualifications**
- Experience in teaching, research, editing, or academic writing.
- Experience creating evaluation criteria, rubrics, or grading guidelines.
- Familiarity with LLMs, prompting, or model evaluation (helpful but not required).
**Application & Onboarding Process**
- Complete an AI-led interview (about 15 minutes).
- Complete a 45-minute written assessment focused on writing and rubric creation.
- If selected, you will be invited to work on the project.
**More Details About This Role**
- Expect to contribute at least 20 hours per week.
- Expect a commitment of around 2+ months.
- You’ll be working in a structured project environment with clear goals and tools.
- We consider all qualified applicants without regard to legally protected characteristics and provide reasonable accommodations upon request.

📌 Bilingual Spanish Generalist Evaluator Expert (Ciudad de México)
🏢 Mercor
📍 Ciudad de México