data annotation

1,000 ofertas de empleo de data annotation en España. Encuentra ofertas actualizadas diariamente de los principales portales de empleo.


  • La Mancha (comarca), Provincia de Ciudad Real; Castilla-La Mancha, España YO IT Consulting Jornada completa

    Job Type: Contract, Part-time Location: Remote Role Description In this hourly, remote contractor role, you will work as a Copywriting & Content Subject Matter Expert (SME) to review AI-generated marketing/content-writing outputs and/or create expert copy and content, evaluating reasoning quality, intent alignment, and step-by-step writing decisions...

  • Client Partner

    Hace 3 días


    Madrid, Madrid, España Appen Jornada completa

    Remote, BR / Remote SpainAI Data Opportunities – Delivery & Program Management /Permanent - Regular Full-time /RemoteAbout the Role As a Client Partner, you'll build and nurture high-value client relationships while ensuring the successful delivery of AI data projects. You'll act as a trusted advisor, connecting client objectives to project execution and...

  • Content Specialist

    Hace 4 días


    La Mancha (comarca), Provincia de Ciudad Real; Castilla-La Mancha, España YO IT Consulting Jornada completa

    Job Type: Contract, Part-time Location: Remote Role Description In this hourly, remote contractor role, you will work as a Copywriting & Content Subject Matter Expert (SME) to review AI-generated marketing/content-writing outputs and/or create expert copy and content, evaluating reasoning quality, intent alignment, and step-by-step writing decisions...

  • Content Creator

    Hace 4 días


    La Mancha (comarca), Provincia de Ciudad Real; Castilla-La Mancha, España YO IT Consulting Jornada completa

    Job Type: Contract, Part-time Location: Remote Role Description In this hourly, remote contractor role, you will work as a Copywriting & Content Subject Matter Expert (SME) to review AI-generated marketing/content-writing outputs and/or create expert copy and content, evaluating reasoning quality, intent alignment, and step-by-step writing decisions...


  • Erandio, Vizcaya, Gran Bilbao (comarca); Vizcaya; País Vasco, España Euskorpora Jornada completa

    EUSKORPORA, the Linguistic Data Center for Basque Digital Technologies, a newly established association based in Donostia/San Sebastián, is seeking a senior specialist in AI and language technologies, with solid experience in natural language processing and applied AI, combined with strong project management, team coordination and leadership skills....


  • Barcelona, Cataluña, España Barcelona Supercomputing Center Jornada completa 90.000 € - 120.000 € Por obra

    Starting date: 15/09/2026Job Reference362_26_AII_LM_R3PositionLanguage Modeling Team Leader (R3)Closing DateMonday, 31 August, 2026Reference: 362_26_AII_LM_R3Job title: Language Modeling Team Leader (R3)The Barcelona Supercomputing Center - Centro Nacional de Supercomputación (BSC-CNS) is the leading supercomputing center in Spain. It houses MareNostrum,...

  • AI Engineer

    Hace 8 horas


    Madrid, Community of Madrid, España Ookla Jornada completa

    The OpportunityWe are looking for an AI Engineer to join our Ekahau team. Ekahau enables IT professionals to take control of their Wi‑Fi, making it easier than ever before to proactively monitor, maintain, and optimize their networks. Organizations of every size—including the world’s biggest brands and events—use our software and hardware products...


  • Madrid, Community of Madrid, España Apple Jornada completa

    Summary Join the Siri team at Apple! Build and contribute to a team and company that is building products, personal devices, and software designed to enrich people’s lives. Work on building and advancing the world’s most popular intelligent assistant that helps millions of people get things done — just by asking! Global Siri works to take Siri to the...

  • AI Engineer

    Hace 12 horas


    Madrid, Community of Madrid, España Human Ventures, LLC. Jornada completa

    Description Position at OoklaThe OpportunityWe are looking for an AI Engineer to join our Ekahau team. Ekahau enables IT professionals to take control of their Wi‑Fi, making it easier than ever before to proactively monitor, maintain, and optimize their networks. Organizations of every size—including the world’s biggest brands and events—use our...

  • Sales Expert

    Hace 2 horas


    Marzán, España Huzzle.com Jornada completa

    Sales Expert (QuickBooks experience) — AI Model EvaluationContract · Remote · $120/hrRole OverviewHuzzle is seeking experienced sales professionals to test how well frontier AI systems handle real sales work. You will write realistic sales prompts that are difficult enough to make a frontier model fail, and then write a rubric for each one that lets any...

  • Accounting Instructor Premium

    Hace 5 días


    , España Alignerr Trabajo remoto Jornada completa

    Accounting Instructor (AI Training) About The Role We're looking for experienced accounting instructors to help train and improve AI systems on accounting principles and financial reporting. Your subject-matter expertise will directly shape how AI understands, explains, and applies accounting concepts — making a real impact on the future of intelligent...


  • Greater Madrid Metropolitan Area, MD, España Mercor Trabajo remoto Jornada completa

    **About The Job** **Mercor** connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include **Benchmark** , **General Catalyst** , **Peter Thiel** , **Adam D'Angelo** , **Larry Summers** , and **Jack Dorsey** . **Position:** Spanish Linguistic Expert ...


  • Basauri, Vizcaya, Gran Bilbao (comarca); Vizcaya; País Vasco, España Euskorpora Jornada completa

    EUSKORPORA, the Linguistic Data Center for Basque Digital Technologies, a newly established association based in Donostia/San Sebastián, is seeking a senior specialist in AI and language technologies, with solid experience in natural language processing and applied AI, combined with strong project management, team coordination and leadership skills....

  • AI Engineer

    Hace 15 horas


    Madrid, Community of Madrid, España Ziff Davis Jornada completa

    Description Opportunity We are looking for an AI Engineer to join our Ekahau team. Ekahau enables IT professionals to take control of their Wi-Fi, making it easier than ever before to proactively monitor, maintain, and optimize their networks. Organizations of every size—including the world’s biggest brands and events—use our software and hardware...

  • AI Engineer

    Hace 2 días


    , España Human Ventures, LLC. Jornada completa 70.000 € - 120.000 € Por obra

    Description Position at Ookla The Opportunity We are looking for an AI Engineer to join our Ekahau team. Ekahau enables IT professionals to take control of their Wi‑Fi, making it easier than ever before to proactively monitor, maintain, and optimize their networks. Organizations of every size—including the world’s biggest brands and events—use our...

  • AI Engineer

    Hace 2 días


    , España Fideo Intelligence Jornada completa 65.000 € - 90.000 € Por obra

    Description Position at Ookla The Opportunity We are looking for an AI Engineer to join our Ekahau team. Ekahau enables IT professionals to take control of their Wi‑Fi, making it easier than ever before to proactively monitor, maintain, and optimize their networks. Organizations of every size—including the world’s biggest brands and events—use our...


  • Barcelona, España Helsing Jornada completa 500 € Por obra

    Who we are Helsing is a defence AI company. Our mission is to protect our democracies. We aim to achieve technological leadership, so that open societies can continue to make sovereign decisions and control their ethical standards.  As democracies, we believe we have a special responsibility to be thoughtful about the development and deployment of powerful...

  • Sales Expert

    Hace 2 días


    Castro Caldelas, Galicia, España Huzzle.com Jornada completa

    Sales Expert (QuickBooks experience) — AI Model EvaluationCompruebe a continuación si tiene lo necesario para esta oportunidad y, si es así, envíe su solicitud lo antes posible.Contract · Remote · $120/hrRole OverviewHuzzle is seeking experienced sales professionals to test how well frontier AI systems handle real sales work. You will write realistic...


  • Madrid, Community of Madrid, España YO IT Consulting Jornada completa

    Job Title Political Science Quality Assurance LeadJob Type ContractLocation RemoteAbout this role In this hourly, remote contractor role, you will work as a Political Science Quality Assurance Lead to oversee quality, consistency, and trainer performance across political science AI training projects. You will review AI-generated political science content and...

  • Accounting Expert

    Hace 3 horas


    Castro Urdiales, Cantabria, España Huzzle.com Jornada completa

    Accounting Expert (QuickBooks) — AI Model EvaluationConsulte la descripción del puesto a continuación. Si confía en que tiene las habilidades y la experiencia adecuadas, envíe su solicitud hoy mismo.Contract · Remote · $120/hrRole OverviewHuzzle is seeking experienced accountants to test how well frontier AI systems handle real accounting work. You...