Freelance Audio Annotators - Portuguese (Brazil)

Work Location : Remote/Work from home (Brazil) Engagement Model: Freelance/Independent contractor Work Schedule: Flexible schedule Language Needed: Portuguese (Brazil) Estimated start date: March 16th, 2026 Estimated duration: Up to one hour in total (completion within 2 days) DataForce by TransPerfect is looking for freelance Portuguese Annotators in Brazil to be part of an innovative project related to Artificial Intelligence. Role description As an Audio Annotator, you will need to handle 31 tasks, which consist of listening to a 15-second average reference audio sample and comparing it with two additional audio samples. Participants will be tasked to evaluate the audio files by providing their opinion, feedback, or rating according to specific project guidelines. For each comparison, you will answer a set of questions by providing ratings on a scale from 0 to 100. The task requires careful listening and consistent evaluation based on the given criteria. Job requirements Idiomatic fluency in Portuguese (Brazil) Advanced English Strong attention to detail and critical listening skills Reliable internet connection and access to headphones Ability to work independently and meet deadlines effectively Ability to follow detailed project guidelines Ability to deliver error-free work Preferred Experience Experience using synthetic voices (Text-to-Speech) on a daily basis. DataForce by TransPerfect is part of the TransPerfect family of companies, the world’s largest provider of language and technology solutions for global business, with offices in more than 100 cities worldwide. We offer high-quality data for Human-Machine Interaction to some of the most prestigious technology companies in the world. Our department focuses on gathering, enriching and processing data for Machine Learning in different AI domains. To learn more about DataForce please visit us at https://www.transperfect.com/dataforce .