Bilingual Portuguese Generalist Evaluator Expert

Mercor is seeking native Portuguese speakers with exceptional writing skills to contribute to a high-impact AI research project with a leading lab. Freelancers will author Portuguese/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. Ideal for those who enjoy distilling complex concepts into well-crafted, culturally grounded Portuguese text while maintaining technical precision in English.

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Job Details

Multilingual Prompt Design & Optimization:

Create detailed prompts in Portuguese and/or English with multiple constraints and instructions, ensuring natural phrasing and real-world relevance for Portuguese-speaking users.

Define and Document Evaluation Standards:

Establish high-level expectations for correct responses in Portuguese 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 Portuguese, 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 Portuguese-language benchmarks before integration into official evaluations.

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Minimum Qualifications

• Native-level fluency in Portuguese (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 Brazil (or able to reliably produce Brazil-specific, culturally accurate Portuguese).

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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).

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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.

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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.