data annotation

901 vagas de data annotation em Brasil. Encontre vagas atualizadas diariamente.

  • Quality Assurance Rater Premium

    Há 2 dias


    , Rio Grande do Norte, Brasil TELUS Digital Remoto Meio período US$ 8 Efetivo

    Join our elite team of Senior Raters as a critical contributor to high-quality validation data that directly influences product development and quality assurance for leading search engines and AI technologies. This flexible, remote opportunity allows you to apply your analytical and research skills to evaluate search results and AI-generated content while...

  • Quality Assurance Rater Premium

    Há 2 dias


    , Piauí, Brasil TELUS Digital Remoto Meio período US$ 8 Efetivo

    Join our elite team of Senior Raters as a critical contributor to high-quality validation data that directly influences product development and quality assurance for leading search engines and AI technologies. This flexible, remote opportunity allows you to apply your analytical and research skills to evaluate search results and AI-generated content while...

  • Quality Assurance Rater Premium

    Há 2 dias


    , Paraná, Brasil TELUS Digital Remoto Meio período US$ 8 Efetivo

    Join our elite team of Senior Raters as a critical contributor to high-quality validation data that directly influences product development and quality assurance for leading search engines and AI technologies. This flexible, remote opportunity allows you to apply your analytical and research skills to evaluate search results and AI-generated content while...

  • Quality Assurance Rater Premium

    Há 2 dias


    , Rio Grande do Sul, Brasil TELUS Digital Remoto Meio período US$ 8 Efetivo

    Join our elite team of Senior Raters as a critical contributor to high-quality validation data that directly influences product development and quality assurance for leading search engines and AI technologies. This flexible, remote opportunity allows you to apply your analytical and research skills to evaluate search results and AI-generated content while...

  • Nursing Informatics Specialist Premium

    Há 4 dias


    Rio de Janeiro, Rio de Janeiro, Brasil Alignerr Remoto Tempo integral US$ 35 - US$ 80 Efetivo

    Nursing Informatics Specialist (AI Training) About The Role Your clinical expertise is more valuable than ever — and not just at the bedside. We're looking for Registered Nurses and clinical informatics professionals to help train and evaluate AI systems designed for healthcare settings. Your real-world knowledge of nursing workflows, EHR systems, and...

  • Public Policy Economist Premium

    Há 5 dias


    , Brasil Alignerr Remoto Tempo integral

    About The Role We're looking for economists with public policy experience to help shape how AI understands, reasons about, and communicates complex economic and policy topics. Your expertise will directly influence the quality and rigor of AI systems being developed by leading research labs — making a real-world impact from the comfort of your own...

  • AI Trainer

    Há 3 dias


    Rio de Janeiro, Rio de Janeiro, Brasil Toloka Annotators Remoto Tempo integral R$ 35.627 - R$ 50.742 Contrato

    Please submit your resume in English and indicate your level of English. At Toloka, we connect smart, curious people from around the world with freelance online tasks that train and improve artificial intelligence. What We Do The Toloka Annotators connects individuals with Generative AI projects from leading tech innovators. Our mission is to unlock the full...

  • Freelance Annotator Premium

    Há 11 horas


    Brazil Toloka Annotators Remoto Tempo integral R$ 8 Efetivo

    DescriptionPlease submit your resume in English and indicate your level of English proficiency.Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment.What this opportunity involvesAnnotation is what helps...

  • Speech AI Evaluation Specialist Premium

    Há 6 dias


    Rio de Janeiro, Rio de Janeiro, Brasil RWS Remoto Tempo integral US$ 6 Efetivo

    We are looking for Speech AI Evaluation Specialist to support the improvement of AI-generated content in Portuguese (Brazil). Job Type: Freelance Location: Brazil (work from home) Work Schedule: Part-time - 10+ hours per week. Flexible - work whenever you want. Start Date: Immediately Duration: TBC Rate: 6 USD per hour Help Shape the Future of AI Are...

  • Civil Engineer

    Há 5 dias


    , Brasil SME Careers Tempo integral R$ 70.000 - R$ 100.000 Contrato

    If you are a civil engineer who thrives on technical precision, applied problem-solving, and infrastructure-focused reasoning, this is a unique opportunity to contribute directly to how the next generation of AI systems understand and communicate complex engineering concepts. We are looking for civil engineering specialists who can evaluate, challenge, and...

  • AI Trainer

    Há 4 dias


    , Brasil Toloka Annotators Remoto Tempo integral R$ 64.777 Contrato

    This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English. What We Do At Toloka, we connect smart, curious people from around the world with freelance online tasks that train and improve artificial...

  • Full-stack Engineer

    Há 5 dias


    , Brasil Gramian Consulting Remoto Tempo integral R$ 120.000 - R$ 180.000 Contrato

    Full-stack Engineer (Python, Node.js, React) for AI Training project- LATAM ONLY 2 weeks ago Be among the first 25 applicants Gramian Consultancy is a boutique consultancy specializing in IT professional services and engineering talent solutions. With a strong background in software engineering and leadership, we help companies build high-performing teams by...


  • Rio de Janeiro, Rio de Janeiro, Brasil Mindrift Remoto Tempo integral R$ 60.854 Contrato

    AI Pilot Task Delivery Assistant (Freelance) 2 days ago Be among the first 25 applicants This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English proficiency. At Mindrift, innovation meets opportunity. We believe...

  • Manager, Product – CX AI Premium

    Há 11 horas


    São Paulo, São Paulo, Brasil TELUS Digital Tempo integral

    Manager, Product – CX AI Who We AreWelcome to TELUS Digital — where innovation drives impact at a global scale. As an award-winning digital product consultancy and the digital division of TELUS, one of Canada’s largest telecommunications providers, we design and deliver transformative customer experiences through cutting-edge technology, agile...

  • Electrical Engineer

    Há 5 dias


    , Brasil SME Careers Tempo integral R$ 80.000 - R$ 100.000 Contrato

    Overview If you are an electrical engineer who thrives on technical precision, applied problem-solving, and rigorous reasoning across circuits, power, and systems, this is a unique opportunity to contribute directly to how the next generation of AI systems understand and communicate complex electrical engineering concepts. We are looking for electrical...

  • AI Annotator

    Há 1 semana


    Novo Brasil, Goiás Innodata India Private Limited Tempo integral

    About the Project We are looking for native or near-native speakers to support an AI data annotation and translation project. The role involves reviewing, translating, and annotating content according to detailed guidelines to help improve the quality and accuracy of AI systems. Project Details - Work Type: Freelance / Remote - Commitment: Approx. 20...


  • Brazil - Remote Perle Remoto Tempo integral

    THE ROLEWe are hiring expert Portuguese (Brazilian) transcribers to convert audio recordings of native speakers into precise, conventionally formatted written transcripts. The work powers speech recognition, dialogue, and evaluation systems for major AI labs. Audio ranges from clean studio recordings to natural conversational speech in real-world acoustic...

  • AI Pilot Assistant

    Há 5 dias


    , Brasil Mindrift Remoto Tempo integral R$ 60.854 Contrato

    AI Pilot Task Delivery Assistant (Freelance) This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English proficiency. At Mindrift, innovation meets opportunity. We believe in using the power of collective...


  • , Brasil RWS Tempo integral R$ 180.000 - R$ 280.000 Contrato

    Job PurposeAs a Senior AI Linguistic Services Manager, you will be responsible for monitoring linguistic and overall quality of our deliveries in the broad spectrum of AI related services, early flagging quality issues and proposing improvement steps. Your role will involve day-to-day operations as well as participation on innovations strategies, including...

  • Project Epsilon Premium

    Há 7 dias


    Brazil Welo Global Remoto Tempo integral R$ 36 Efetivo

    About the Role  We are looking for detail-oriented Quality Control (QC) Specialist to support an AI data annotation project. In this role, you will review the work submitted by Trainers — pre-seeded questions paired with images and their corresponding "golden" answers — to confirm accuracy, consistency, and adherence to project guidelines.  This is...