data annotation

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

  • AI Model Evaluator

    Há 23 horas


    Salvador, State of Bahia, Brasil E-Solutions Tempo integral

    Role: AI Model Evaluator - Brazilian Portuguese Role Type : Contract ----2 Months | 8 hours/day | 5 days/week Role Location- Brazil (Remote)Candidate must be flexible from Monday to Sunday (with option with 2 days off)Flexible Hours: EST Overlap but 2 months of dedicated projectJob description:We are looking for native/near-native Brazilian Portuguese...

  • AI Model Evaluator

    Há 23 horas


    Curitiba, State of Paraná, Brasil E-Solutions Tempo integral

    Role: AI Model Evaluator - Brazilian Portuguese Role Type : Contract ----2 Months | 8 hours/day | 5 days/week Role Location- Brazil (Remote)Candidate must be flexible from Monday to Sunday (with option with 2 days off)Flexible Hours: EST Overlap but 2 months of dedicated projectJob description:We are looking for native/near-native Brazilian Portuguese...


  • Belo Horizonte, Minas Gerais, Brasil RWS Tempo integral R$ 36.000 - R$ 50.000 Contrato

    In this role, you will play a critical part in shaping the future of artificial intelligence and media analysis.Your main responsibility will be to review short-form video media and classify the language present in both spoken audio and on-screen text. By validating content within your native locale, you will generate high-quality "ground truth" data.Job...


  • São Paulo, São Paulo, Brasil Alignerr Remoto Tempo integral US$ 10 - US$ 35 Efetivo

    About The Role What if your sharp ear for spoken Brazilian Portuguese could directly shape how AI understands and processes one of the world's most widely spoken languages? We're looking for detail-oriented transcriptionists based in and around São Paulo to produce accurate, high-quality transcriptions of spoken audio — helping build the datasets that...

  • AI Model Evaluator

    Há 2 dias


    Belo Horizonte, State of Minas Gerais, Brasil E-Solutions Tempo integral

    Role: AI Model Evaluator - Brazilian Portuguese Role Type : Contract ----2 Months | 8 hours/day | 5 days/week Role Location- Brazil (Remote)Candidate must be flexible from Monday to Sunday (with option with 2 days off)Flexible Hours: EST Overlap but 2 months of dedicated projectJob description:We are looking for native/near-native Brazilian Portuguese...

  • AI Model Evaluator

    Há 2 dias


    Porto Alegre, State of Rio Grande do Sul, Brasil E-Solutions Tempo integral

    Role: AI Model Evaluator - Brazilian Portuguese Role Type : Contract ----2 Months | 8 hours/day | 5 days/week Role Location- Brazil (Remote)Candidate must be flexible from Monday to Sunday (with option with 2 days off)Flexible Hours: EST Overlap but 2 months of dedicated projectJob description:We are looking for native/near-native Brazilian Portuguese...

  • Oncology Clinical Researcher Premium

    Há 4 dias


    Rio de Janeiro, Rio de Janeiro, Brasil Alignerr Remoto Tempo integral US$ 40 - US$ 80 Efetivo

    Oncology Clinical Researcher (AI Training) About The Role What if your deep expertise in cancer clinical trials could directly shape how AI understands and reasons about oncology — influencing the next generation of tools used by researchers, clinicians, and drug developers worldwide? We're looking for experienced Oncology Clinical Researchers to bring...

  • Clinical Study Manager Premium

    Há 4 dias


    , Brasil Alignerr Remoto Tempo integral

    Clinical Study Manager (AI Training) About The Role What if your clinical trial expertise could directly shape how AI understands and reasons about healthcare research? We're looking for experienced Clinical Study Managers to help oversee the operational execution of clinical trials — while contributing to some of the most advanced AI development...

  • Principal Clinical Scientist Premium

    Há 4 dias


    Rio de Janeiro, Rio de Janeiro, Brasil Alignerr Remoto Tempo integral US$ 40 - US$ 80 Efetivo

    Principal Clinical Scientist (AI Training) About The Role What if your career-long expertise in clinical trial design and regulatory science could directly shape how AI understands and reasons about clinical evidence? We're looking for a Principal Clinical Scientist to bring senior-level rigor to AI-driven research workflows. Your work will help ensure...

  • Environmental Science Expert Premium

    Há 8 horas


    , Brasil Alignerr Remoto Tempo integral

    Environmental Science Expert (AI Training) About The Role What if your expertise in climate modeling, ecology, or sustainability could directly shape how AI understands and reasons about the most pressing environmental challenges facing our planet? We're looking for Environmental Science experts — Masters and PhD holders — to develop advanced,...

  • AI Model Evaluator

    Há 2 dias


    São Paulo, State of São Paulo, Brasil E-Solutions Tempo integral

    Role: AI Model Evaluator - Brazilian Portuguese Role Type : Contract ----2 Months | 8 hours/day | 5 days/week Role Location- Brazil (Remote)Candidate must be flexible from Monday to Sunday (with option with 2 days off)Flexible Hours: EST Overlap but 2 months of dedicated projectJob description:We are looking for native/near-native Brazilian Portuguese...


  • , Brasil Alignerr Remoto Tempo integral US$ 35 - US$ 75 Efetivo

    About The Job At Alignerr, we partner with the world’s leading AI research teams and labs to build and train cutting-edge AI models. We are seeking experienced EMR/EHR Implementation Specialists to support healthcare organizations by configuring, deploying, and optimizing electronic medical record systems such as Epic and Cerner. In this role, you will...


  • Rio de Janeiro, Rio de Janeiro, Brasil Alignerr Remoto Tempo integral US$ 35 - US$ 75 Efetivo

    About The Job At Alignerr, we partner with the world’s leading AI research teams and labs to build and train cutting-edge AI models. We are seeking experienced EMR/EHR Implementation Specialists to support healthcare organizations by configuring, deploying, and optimizing electronic medical record systems such as Epic and Cerner. In this role, you will...

  • Mathematics Specialist Premium

    Há 13 horas


    , Brasil Alignerr Remoto Tempo integral

    Mathematics Specialist (Masters/PhDs) - AI Training About The Role What if your deep expertise in mathematics could directly shape how AI reasons through the world's hardest problems? We're looking for Mathematics Specialists with advanced degrees to help train and evaluate cutting-edge AI models — ensuring they can think rigorously, solve complex...

  • Nursing Informatics Specialist Premium

    Há 4 dias


    , Brasil Alignerr Remoto Tempo integral

    Nursing Informatics Specialist (AI Training) About The Role Your clinical experience is more valuable than you think — beyond the bedside. We're looking for Nursing Informatics Specialists to help evaluate and improve AI systems being developed for healthcare settings. You'll bring real-world nursing knowledge to the table, helping ensure that AI...

  • Chemistry Expert Premium

    Há 8 horas


    , Brasil Alignerr Remoto Tempo integral

    Chemistry Expert (AI Training) About The Role What if your years of chemistry training could directly shape how AI reasons through the most complex scientific problems in the world? We're looking for Chemistry Masters and PhDs to design, solve, and evaluate advanced chemistry problems that teach AI to think like a real scientist. This is a fully remote,...

  • Mathematician – Formal Proof Premium

    Há 2 dias


    São Paulo, São Paulo, Brasil Alignerr Remoto Tempo integral US$ 170 - US$ 200 Efetivo

    About The Role What if your deep knowledge of formal mathematics could directly shape how the most advanced AI systems in the world reason, prove, and think? We're looking for mathematicians with a passion for rigorous proof and formal systems to help build the mathematical foundations that frontier AI depends on. This is a fully remote, flexible contract...

  • Ai Annotator

    Há 1 semana


    Belo Horizonte, MG, Brasil Tempo integral

    Ai Annotator - The role involves reviewing, translating, and annotating content according to detailed guidelines to help improve the quality and accuracy of AI systems. Project DetailsWork Type: Freelance / RemoteCommitment: Approx. 20 hours per weekDuration: 2 MonthsLanguages (required): Portuguese, EnglishProject Area: AI Data Annotation &...

  • Ai Annotator

    Há 1 semana


    Salvador, BA, Brasil Tempo integral

    Ai Annotator - The role involves reviewing, translating, and annotating content according to detailed guidelines to help improve the quality and accuracy of AI systems. Project DetailsWork Type: Freelance / RemoteCommitment: Approx. 20 hours per weekDuration: 2 MonthsLanguages (required): Portuguese, EnglishProject Area: AI Data Annotation &...

  • Speech AI Evaluation Specialist Premium

    Há 15 horas


    Rio de Janeiro, Brasil RWS TrainAI 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...