Daniella Cavalheiro

Key Skills

Software

Appen

CrowdSource

iMerit

Labelbox

Lionbridge

Mindrift

OneForma

Scale AI

Toloka

Other

Top Subject Matter

No subject matter listed

Top Data Types

Audio

Document

Text

Top Task Types

Audio Recording

Classification

Data Collection

Evaluation Rating

Translation Localization

Freelancer Overview

I am a multilingual specialist in data annotation, translation, and AI training, with hands-on experience in natural language processing, educational technology, and voice data labeling. My expertise includes annotating and evaluating prompt-response pairs for large language models, collecting and organizing audio samples for speech technology, and carrying out high-precision translation and localization of technical, educational, and marketing content. I ensure strong linguistic and cultural accuracy across projects, drawing on deep experience in multilingual workflows (Portuguese, English, Italian). My skill set covers data labeling, quality assurance, prompt engineering for personalized learning, and document translation for global audiences. I excel in collaborating with diverse, multicultural teams, optimizing annotation processes, and upholding ethical AI practices. My background spans text, audio, and document labeling, as well as translation and review, supporting innovation in multilingual natural language processing and educational technology.

Labeling Experience

Medical Audio Transcriber & Prompt Creator

OtherAudioText GenerationData Collection

Transcribed medical audio recordings applying precise domain terminology and formatting. Developed complex prompts to challenge generative AI, testing model limitations and promoting robust training data. Reviewed and annotated outputs for accuracy and compliance.

Transcribed medical audio recordings applying precise domain terminology and formatting. Developed complex prompts to challenge generative AI, testing model limitations and promoting robust training data. Reviewed and annotated outputs for accuracy and compliance.

2025

Dubbed Video Quality Rater

AppenVideoEvaluation Rating

Evaluated Brazilian Portuguese dubbed videos for clarity, comprehension, and localization quality. Suggested linguistic and cultural adaptations based on localization expertise to ensure natural, accurate, and accessible content.

Evaluated Brazilian Portuguese dubbed videos for clarity, comprehension, and localization quality. Suggested linguistic and cultural adaptations based on localization expertise to ensure natural, accurate, and accessible content.

2025

Prompt Response Rater

OtherImageEvaluation RatingPrompt Response Writing SFT

Prompt response rating and STF writing for LLM training. High-volume annotation, detail-oriented quality checks, fact-checking and rubric-based review standards.

Prompt response rating and STF writing for LLM training. High-volume annotation, detail-oriented quality checks, fact-checking and rubric-based review standards.

2025

Prompt Response Evaluator

CrowdsourceTextClassificationPrompt Response Writing SFT

Rated and reviewed AI-generated text outputs for factual accuracy, safety, and language quality. Ensured all responses were clear, unbiased, and compliant with ethical moderation guidelines in pt-BR, pt-PT and English content.

Rated and reviewed AI-generated text outputs for factual accuracy, safety, and language quality. Ensured all responses were clear, unbiased, and compliant with ethical moderation guidelines in pt-BR, pt-PT and English content.

2025 - 2025

Content Moderator / Sensitive Content Reviewer

MindriftTextClassificationEvaluation Rating

Evaluated text data for sensitive or harmful content. Tasks included flagging and categorizing inappropriate, offensive, and unsafe material, ensuring alignment with strict ethical standards and filtering protocols for NLP model development.

Evaluated text data for sensitive or harmful content. Tasks included flagging and categorizing inappropriate, offensive, and unsafe material, ensuring alignment with strict ethical standards and filtering protocols for NLP model development.

2025 - 2025

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Education

Work History