Mathematics Specialist (Fluent in Portuguese - Brazil) – AI Trainer

We are seeking a Mathematics Specialist fluent in Brazilian Portuguese to join our AI Training team. In this role, you will combine mathematics expertise with language proficiency to help train, evaluate, and improve advanced AI models. You will review AI outputs, create and verify math problems, and ensure accuracy and cultural relevance in both Portuguese and English.

Responsibilities

• Review, annotate, and evaluate AI-generated responses in mathematics, including algebra, calculus, statistics, and applied math.
• Create, verify, and refine math problems, solutions, and explanations in both Portuguese and English.
• Localize and adapt mathematical explanations to Brazilian Portuguese, ensuring precise terminology and notation.
• Provide constructive feedback to improve AI reasoning, clarity, and accuracy.
• Develop benchmark datasets and testing materials to measure AI performance.
• Collaborate with AI researchers, linguists, and subject-matter experts to enhance training methods.
• Ensure academic accuracy, linguistic quality, and cultural appropriateness of all content.

Requirements

• Bachelor’s degree or higher in Mathematics, Applied Mathematics, Statistics, Engineering, or a related quantitative field.
• Strong problem-solving ability across core mathematical domains.
• Native or near-native fluency in Brazilian Portuguese and professional proficiency in English.
• Ability to explain complex mathematical concepts clearly and accessibly.
• Excellent attention to detail and critical thinking skills.
• Comfortable using digital tools for annotation, evaluation, or content creation.
• Experience in teaching, tutoring, curriculum development, or AI/ML data annotation is a plus.

What We Offer

• Opportunity to contribute to cutting-edge AI development.
• Remote, flexible work environment.
• Competitive compensation based on experience and expertise.
• Collaborative team of mathematicians, linguists, and AI specialists.

Where you can work

This role is 100% remote, for applicants located in Brazil.