Portuguese AI Response Evaluation Expert

About OpenTrain

OpenTrain is the #1 platform for finding and building careers in AI training and data labeling. Through OpenTrain, you can discover specialized projects, build a profile that reflects your expertise, and apply in minutes as you grow your AI training career.

• Free account creation
• Remote opportunities in a fast-growing AI industry
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About AI Response Evaluation

AI response evaluation is the human side of improving modern artificial intelligence. Experts review model-generated text, assess whether answers are correct and well reasoned, and provide feedback that helps AI systems produce clearer, more accurate, and more useful results.

• Evaluate model outputs using structured quality criteria
• Identify reasoning, factual, language, and localization issues
• Help shape how AI systems respond in Portuguese

The Role

OpenTrain is hiring a Portuguese AI Response Evaluation Expert to assess AI-generated responses and language outputs. You will evaluate reasoning quality, accuracy, clarity, and adherence to prompts while applying strong Brazilian Portuguese localization and translation judgment.

This is an hourly, part-time contractor role with fully remote work. The role is based in Brazil, is associated with Brazil and Portugal, requires 20 or more hours per week, and pays $30 per hour.

• Role: Portuguese AI Response Evaluation Expert
• Employment type: Part-time contractor
• Work arrangement: Fully remote
• Location: Brazil, with country coverage including Brazil and Portugal
• Schedule: 20+ hours per week
• Pay: $30 per hour
• Experience level: Intermediate

What You'll Do

• Review AI-generated responses for accuracy, logic, clarity, and adherence to the prompt.
• Evaluate step-by-step problem solving, methodology, and conceptual understanding.
• Fact-check names, dates, units, references, and other localized details.
• Write high-quality explanations and model solutions when needed.
• Compare multiple AI responses and rate their correctness and reasoning quality.
• Apply Brazilian Portuguese localization and translation judgment to preserve terminology, tone, and cultural nuance.
• Assess MQM and LQA issues by severity, category, and root cause.
• Use CAT tools, translation memory, termbases, and QA workflows where appropriate.

Required Qualifications

You should bring professional translation, localization, language, or editorial expertise and be comfortable evaluating complex AI-generated content. Experience with AI data training, annotation, or evaluation is preferred, but the core requirement is strong judgment across language quality, reasoning, and factual accuracy.

• Degree in Translation, Linguistics, Localization, Communications, or a related field.
• Native or near-native Portuguese proficiency, with Brazilian Portuguese judgment.
• C1 English reading and writing proficiency for prompts and evaluation guidelines.
• At least 5 years of localization or translation experience.
• Knowledge of MQM and LQA severity, category, and root-cause analysis.
• Experience with CAT tools, translation memory, termbases, and QA workflows.
• Excellent editorial judgment and strong fact-checking skills.
• Familiarity with terminology management, automated checks, style guides, and copyediting.

Who Should Apply

This role is a strong fit for an experienced Portuguese translator, localizer, language quality specialist, or editor who can explain why an AI response succeeds or fails. You should be responsive, document decisions clearly, and maintain dependable hourly contractor work habits.

• Portuguese localization and translation specialists
• MQM or LQA practitioners
• Editors with strong fact-checking and reasoning skills
• Professionals familiar with AI response evaluation
• Candidates able to commit 20+ hours per week remotely

How This AI Training Work Fits Your Career

AI training is a growing field that includes response rating, text generation, language review, and human feedback. Contributors use their professional expertise to influence how cutting-edge AI models communicate, reason, and perform across languages.

OpenTrain makes it easier to start and grow in this field by bringing opportunities together, helping you present your experience through a dedicated profile, and letting you apply to projects in minutes.

• Work remotely with a computer and internet connection
• Build experience in AI evaluation and human feedback
• Apply your language and localization expertise to emerging technology