data annotation

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

  • LLM Evaluator

    Há 2 dias


    , Brasil Chemin AI Remoto Tempo integral R$ 20.000 - R$ 36.000 Contrato

    About CheminChemin, TDCX's AI-focused subsidiary, is launching a new gigwork opportunity for individuals eager to earn while contributing to cutting-edge AI projects. We partner with leading global companies to power next-generation AI solutions. For this project, we are teaming up with a leading fintech client, and we're inviting individuals native of...

  • Senior Fullstack Engineer Premium

    Há 8 horas


    Remote: Brazil Entrupy Remoto Tempo integral

    About Entrupy   Entrupy is a global technology company whose mission is to protect businesses, borders and consumers from transacting in counterfeit goods. Entrupy has developed a patented technology system which utilizes a combination of AI and computer vision to instantly identify and authenticate high value physical goods.   Entrupy’s solutions serve...

  • AI Trainer

    Há 5 dias


    Belo Horizonte, Minas Gerais, Brasil Toloka Annotators Remoto Tempo integral R$ 43.184 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...


  • São Paulo, São Paulo, Brasil Mindrift Remoto Tempo integral R$ 4 - R$ 6 Contrato

    AI Pilot Task Delivery Assistant (Freelance) 1 day 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...

  • Data Annotator for AI Models Premium

    Há 2 semanas


    Brazil Jobgether Remoto Tempo integral

    This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Data Annotator for AI Models based in Brazil. Join a fully remote AI data team helping improve the accuracy, reliability, and performance of next-generation generative AI and machine learning models. In this role, you will...


  • Belo Horizonte, Brasil Toloka Annotators Tempo integral

    **_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...

  • Freelance Annotator Premium

    Há 7 dias


    Rio de Janeiro, Southeast, Brasil Mindrift - Data annotation Remoto Meio período US$ 8 Efetivo

    Please 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 involves Annotation is what helps AI make...

  • Freelance Annotator Premium

    Há 7 dias


    Belo Horizonte, Minas Gerais, Brasil Mindrift Data Annotation Projects Remoto Meio período US$ 8 Efetivo

    Please 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 Involves Annotation is what helps AI...

  • Freelance Annotator Premium

    Há 7 dias


    São Paulo, São Paulo, Brasil Mindrift Data Annotation Projects Remoto Meio período US$ 8 Efetivo

    Please 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 Involves Annotation is what helps AI...

  • Freelance Annotator Premium

    Há 7 dias


    , Brasil Mindrift Data Annotation Projects Remoto Tempo integral US$ 8 Efetivo

    Please 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 Involves Annotation is what helps AI...

  • Physiotherapist

    Há 4 dias


    Porto Alegre, Rio Grande do Sul, Brasil Sword Health Tempo integral R$ 121.000 - R$ 161.000 Contrato

    At Sword, we’re building AI to heal billions and unlock humanity’s full potential. In doing so, we’re pioneering AI Care, a fundamentally new approach to healthcare built for medical reasoning, safety, and real-time treatment, not generic technology applied after the fact. As both a clinical-centric frontier AI lab and an applied AI platform, Sword is...

  • Freelance Annotator Premium

    Há 7 dias


    Rio de Janeiro, Rio de Janeiro, Brasil Mindrift Data Annotation Projects Remoto Meio período US$ 8 Efetivo

    Please 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 Involves Annotation is what helps AI...

  • English-Chinese Bilingual Speaker Premium

    Há 20 horas


    , Brasil Mindrift - Data annotation Remoto Meio período US$ 5 Efetivo

    This is a project-based opportunity on an AI training platform. No fixed hours, no commitment beyond what fits your schedule. You talk, you get paid. About the Role We're looking for bilingual speakers to record short, casual voice clips where they naturally mix English with Chinese - the way they'd actually talk in real life. No script, no scenarios, just...

  • Principal Clinical Scientist Premium

    Há 1 semana


    , Brasil Alignerr Remoto Tempo integral

    Principal Clinical Scientist (AI Training) About The Role What if your career's worth of clinical trial expertise could directly shape how AI understands and reasons about biomedical evidence? We're partnering with the world's leading AI research labs to build next-generation models — and we need senior clinical scientists to ensure those models get the...

  • Biology Specialist Premium

    Há 1 semana


    , Brasil Alignerr Remoto Tempo integral

    Biology Specialist (Masters/PhDs) - AI Training About The Role What if your years of advanced biology training could directly shape how AI reasons through some of the most complex problems in science? We're looking for Biology Specialists with graduate-level expertise to help build and refine cutting-edge AI models — ensuring they can tackle real-world...


  • , Brasil Alignerr Remoto Tempo integral

    Soil and Water Conservation Scientist (AI Training) About The Role We're looking for soil and water conservation scientists to help shape how AI understands sustainable land and water management. Your real-world expertise will directly influence the accuracy and reliability of AI systems used by researchers, conservationists, and policymakers...


  • Brazil Jobgether Remoto Tempo integral

    This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for an Engenheiro(a) de Dados e Analytics PLENO based in Brazil. This is a hands-on opportunity to build and evolve scalable data and analytics solutions in a modern, technology-driven environment.You will contribute across...

  • Portuguese Voice Actor Premium

    Há 1 semana


    Brazil Jobgether Remoto Tempo integral US$ 6 - US$ 65 Contrato

    This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Portuguese Voice Actor - Freelance AI Trainer Project based in Brazil. This opportunity is designed for an experienced Portuguese voice professional interested in helping shape the next generation of AI-powered speech...

  • Freelance Annotator

    Há 1 semana


    Rio de Janeiro, Brasil Toloka Annotators Tempo integral

    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 potential of AI by involving real people from around the world in...

  • Quality Assurance Rater Premium

    Há 1 semana


    , Mato Grosso 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...