freelance data annotator

5.767 ofertas de empleo de freelance data annotator en España. Encuentra ofertas actualizadas diariamente de los principales portales de empleo.


  • España Perit AI (YC F26) Trabajo remoto Jornada completa

    We’re hiring freelance AI Data Annotators for Spanish language alignment work. You'll listen to audio and align spoken words to their exact position in the transcript - correcting boundaries, catching mis-transcriptions, and making sure every word lands where it belongs. The work is detail-heavy and quiet. If you like careful, focused tasks and have a...


  • España Perit AI (YC F26) Trabajo remoto Jornada completa

    We’re hiring freelance AI Data Annotators for Spanish language transcription work. You'll listen to audio and analyze the transcript based on guidelines - writing in lowercase, adding appropriate tags for filled pauses and backchannels, catching mis-transcriptions, and making sure every word is transcribed correctly. The work is detail-heavy and quiet....

  • AI Trainer

    Hace 24 horas


    España Toloka Annotators Trabajo remoto Jornada completa 14.000 € - 26.000 € Por obra

    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 intelligence. About The Role Annotation is what helps AI make sense of the world. As an annotator, you may be invited to take part in online...

  • Freelance Annotator

    Hace 3 días


    España Toloka Annotators Jornada completa

    Please submit your resume in English and indicate your level of English.Descubra exactamente qué habilidades, experiencia y cualificaciones necesitará para tener éxito en este puesto antes de enviar su solicitud a continuación.At Toloka, we connect smart, curious people from around the world with freelance online tasks that train and improve artificial...

  • Remote AI Trainer

    Hace 3 días


    Barcelona, España Mindrift Data Annotation Projects Jornada completa

    Toloka connects people with AI projects and invites you to join as an annotator.Si desea conocer los requisitos para este puesto, siga leyendo para obtener toda la información relevante.You may review data (text, images or videos), label content, and help AI systems make sense of the world.This is a part-time, remote, freelance opportunity.Tasks are...


  • Spain Centific Jornada completa

    About CentificAt Centific, people are at the center of our culture.We constantly seek out opportunities for people to enhance their skills,and emphasize work-life balance for all our employees.We believe that competition can bring out the very best in people– from our annual creative film and speech contests to our weekly office game tournaments,we mix...


  • Spain Centific Jornada completa

    About CentificCentific is a frontier AI data foundry that curates diverse, high-quality data, using our purpose-built technology platforms to empower the Magnificent Seven and our enterprise clients with safe, scalable AI deployment. Our team includes more than 150 PhDs and data scientists, along with more than 4,000 AI practitioners and engineers. We...

  • French Data Annotator-9

    Hace 24 horas


    España Centific Global Solutions, Inc. Jornada completa 21.000 € - 26.000 € Por obra

    ## French Data Annotator-9Applylocations: Spain Officetime type: Full timeposted on: Posted Todayjob requisition id: JR107733**About Centific**Centific is a frontier AI data foundry that curates diverse, high-quality data, using our purpose-built technology platforms to empower the Magnificent Seven and our enterprise clients with safe, scalable AI...


  • España Centific Global Solutions, Inc. Jornada completa

    ## French Data Annotator-11Applylocations: Spain Officetime type: Full timeposted on: Posted Todayjob requisition id: JR107735Si cree que es el candidato ideal para la siguiente oportunidad, envíe su solicitud después de leer la descripción completa.**About Centific**Centific is a frontier AI data foundry that curates diverse, high-quality data, using our...


  • España Odixcity Consulting Jornada completa

    Job Title: Web Data Analyst AnnotatorNo deje pasar esta oportunidad, inscríbase rápidamente si su experiencia y habilidades coinciden con lo que se indica en la siguiente descripción.Job Summary: We are seeking for a detailed- oriented Web Data Analyst Annotator to collect, analyze, validate, and annotate web-based datasets used in training Artificial...


  • Spain Centific Jornada completa

    About CentificCentific is a frontier AI data foundry that curates diverse, high-quality data, using our purpose-built technology platforms to empower the Magnificent Seven and our enterprise clients with safe, scalable AI deployment. Our team includes more than 150 PhDs and data scientists, along with more than 4,000 AI practitioners and engineers. We...


  • Spain Centific Jornada completa

    About CentificCentific is a frontier AI data foundry that curates diverse, high-quality data, using our purpose-built technology platforms to empower the Magnificent Seven and our enterprise clients with safe, scalable AI deployment. Our team includes more than 150 PhDs and data scientists, along with more than 4,000 AI practitioners and engineers. We...

  • Remote AI Trainer

    Hace 24 horas


    Barcelona, Cataluña, España Mindrift Data Annotation Projects Jornada completa 14.513 € - 20.561 € Por obra

    Toloka Annotators connects individuals with Generative AI projects from leading tech innovators. This freelance, remote opportunity involves annotating data by reviewing content, labeling according to project guidelines, and flagging issues. Projects are available only when active, and compensation varies by scope.On this project, pay is up to $17 per hour...


  • España Centific Global Solutions, Inc. Jornada completa 25.000 € - 35.000 € Por obra

    A dynamic technology company in Spain is seeking a Data Annotator to enhance conversational AI performance. This role requires verifying data, reviewing model outputs, and supervising junior staff, with a focus on ensuring quality standards. Ideal candidates will have 1-2 years of experience in relevant fields and strong communication skills. While...


  • Spain Centific Jornada completa

    About CentificCentific is a frontier AI data foundry that curates diverse, high-quality data, using our purpose-built technology platforms to empower the Magnificent Seven and our enterprise clients with safe, scalable AI deployment. Our team includes more than 150 PhDs and data scientists, along with more than 4,000 AI practitioners and engineers. We...


  • Spain Centific Jornada completa

    About CentificCentific is a frontier AI data foundry that curates diverse, high-quality data, using our purpose-built technology platforms to empower the Magnificent Seven and our enterprise clients with safe, scalable AI deployment. Our team includes more than 150 PhDs and data scientists, along with more than 4,000 AI practitioners and engineers. We...


  • Spain Centific Jornada completa

    About CentificCentific is a frontier AI data foundry that curates diverse, high-quality data, using our purpose-built technology platforms to empower the Magnificent Seven and our enterprise clients with safe, scalable AI deployment. Our team includes more than 150 PhDs and data scientists, along with more than 4,000 AI practitioners and engineers. We...

  • Remote AI Annotator

    Hace 3 días


    España Toloka Annotators Jornada completa

    A leading AI development company seeks annotators for flexible, remote freelance projects involving the review and classification of data.¿Tiene su CV preparado? Si es así y confía en que este es el puesto ideal para usted, asegúrese de enviar su solicitud lo antes posible.Responsibilities include evaluating AI-generated content and ensuring factual...

  • French Data Annotator

    Hace 24 horas


    España Centific Global Solutions, Inc. Jornada completa 21.000 € - 26.000 € Por obra

    Centific is seeking a French Data Annotator in Spain to help process large volumes of data with high accuracy. You will interpret complex guidelines and apply them consistently, ensuring high-quality annotations that support model training and evaluation.You will collaborate with QA and project managers to maintain data quality, provide feedback to improve...


  • Bilbao, País Vasco, España LxT AI Jornada completa

    LXT AI is seeking Basque (Euskara) speakers for remote transcription, annotation and data collection tasks, including voice recordings.¿Listo para inscribirse? Antes de hacerlo, asegúrese de leer todos los detalles pertenecientes a este trabajo en la descripción a continuación.You will listen to audio/video content and produce accurate transcripts and...