Empleos de freelance ai evaluation engineer en madrid

3.818 ofertas de empleo de freelance ai evaluation engineer en España. Encuentra ofertas actualizadas diariamente de los principales portales de empleo.


  • Madrid, Community of Madrid, España Jobgether Jornada completa

    This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for an AI Evaluation Engineer based in Spain.As a founding AI Evaluation Engineer, you will design and build the evaluation, testing, and observability infrastructure that ensures production-grade AI agents perform reliably, safely,...

  • AI Evaluation Engineer

    Hace 4 días


    Comunidad de Madrid, España Jobgether Jornada completa

    This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for an AI Evaluation Engineer based in Spain. As a founding AI Evaluation Engineer, you will design and build the evaluation, testing, and observability infrastructure that ensures production-grade AI agents perform reliably, safely,...

  • FREELANCE AI ENGINEER

    Hace 1 día


    Madrid, Community of Madrid, España PIXIE Jornada completa

    En este momento estamos buscando un AI Engineercon experiencia en Inteligencia Artificial y plataformas de IApara incorporarse a un proyecto tecnológico. Experiencia profesional como AI Engineer / ML Engineer / Data Scientist . Experiencia en desarrollo e implementación de soluciones de Inteligencia Artificial . Experiencia con al menos una de las...

  • Prompt Engineer

    Hace 1 día


    Madrid, Community of Madrid, España Nubika - Cloud Solutions Jornada completa

    Descripción de la empresaInetum es líder europeo en servicios digitales. El equipo de 28.000 consultores y expertos de Inetum se esfuerza cada día por lograr un impacto digital en las empresas, en las entidades del sector público y en la sociedad. Las soluciones de Inetum quieren contribuir al rendimiento y la innovación de sus clientes, así como al...

  • Prompt Engineer

    Hace 2 días


    Madrid, Community of Madrid, España Inetum North Jornada completa

    Inetum es líder europeo en servicios digitales. El equipo de 28.000 consultores y expertos de Inetum se esfuerza cada día por lograr un impacto digital en las empresas, en las entidades del sector público y en la sociedad. Las soluciones de Inetum quieren contribuir al rendimiento y la innovación de sus clientes, así como al interés general. Presente...

  • AI Engineer

    Hace 24 horas


    Madrid, Comunidad de Madrid, España Galadrim Jornada completa

    Como ingeniero/a de IA autónomo/a, tu misión consistirá en desarrollar soluciones de inteligencia artificial que aporten el máximo valor posible a tus clientes y a sus usuarios. Tus tareas * Implementar modelos de IA con un enfoque pragmático e iterativo, recurriendo, cuando sea necesario, a modelos preentrenados o a servicios especializados; *...


  • Madrid, Community of Madrid, España Jobgether Jornada completa

    Jobgether is seeking a founding AI Evaluation Engineer based in Spain to design and build scalable evaluation and observability infrastructure for AI agents. You will create automated testing for complex reasoning, multi-turn conversations, and API interactions, driving reliability and safety across production systems. You will own the evaluation...

  • AI Workflow Engineer

    Hace 2 días


    Madrid, Community of Madrid, España Mindrift Jornada completa

    Mindrift is looking for skilled AI Workflow Engineersto join the Tendem project ( and build intelligent automation systems powered by LLMs within our hybrid AI + human environment. In this role, as an AI Pilot - that's how we refer to this position at Mindrift - you'll collaborate with Tendem Agents that handle repetitive tasks, while you provide structured...


  • Madrid, Community of Madrid, España Eurecat - Centro Tecnológico Jornada completa

    NTT DATA seeks experienced Research Engineers to contribute to a project focused on code generation, software engineering, and AI model evaluation. You will develop, review, and assess real-world coding tasks to train next-generation AI systems. No prior AI experience required. Role is remote with fast onboarding and flexible collaboration across teams....


  • Madrid, Community of Madrid, España Obsidian Jornada completa

    Mercor is seeking experienced music producers and audio engineers to evaluate generative music AI models. You will assess AI-generated music in Spanish (ES) and English, focusing on musicality, creativity, and technical quality. Responsibilities include head-to-head comparisons, tagging by genre and structure, and evaluating lyrics and vocal quality against...


  • Madrid, Community of Madrid, España Mindrift Jornada completa

    Mindrift is seeking a part-time AI Workflow Engineer for the Tendem project in Spain. This remote freelance role focuses on designing and optimizing AI-driven workflows powered by LLMs. You'll collaborate with agents and leverage your expertise in prompt engineering, automation, and data structuring. Ideal candidates will have at least 3 years of relevant...

  • AI Engineer

    Hace 2 días


    Madrid, España Galadrim Jornada completa

    Como ingeniero/a de IA autónomo/a, tu misión consistirá en desarrollar soluciones de inteligencia artificial que aporten el máximo valor posible a tus clientes y a sus usuarios. Tus tareas Implementar modelos de IA con un enfoque pragmático e iterativo, recurriendo, cuando sea necesario, a modelos preentrenados o a servicios especializados; Desarrollar...


  • Madrid, España Mindrift Jornada completa

    Develop challenging coding test cases for AI systems, focusing on full-stack development with Python and React. Analyze AI failures and iterate based on feedback. This is a part-time, project-based role.


  • Madrid, Community of Madrid, España YO AI Labs Jornada completa

    YO AI Labs is seeking experienced Research Engineers to contribute to code generation, software engineering, and AI model evaluation. You will apply programming expertise to develop, review, and evaluate real-world coding tasks that help train and improve next-generation AI systems. No prior AI experience is required. Role focuses on analyzing and refining...

  • Copy of CFD

    Hace 1 día


    Madrid, Community of Madrid, España Lifted (an Upwork Company) Jornada completa

    What You'll Do:Design compact, self-contained CFD and aerodynamics tasks that evaluate AI models' engineering reasoning. Create clear and technically accurate problem statements covering topics such as boundary conditions, mesh quality, flow regimes, and simulation setup. Develop deterministic scoring checkers that objectively evaluate AI-generated...


  • Madrid, Community of Madrid, España 10x Team B.V Jornada completa

    10x Team B.V is seeking a freelance Process Engineering Consultant – AI Trainer to help train AI models on process optimization, workflow engineering, and QA in EU/UK remote roles. You will review AI outputs, develop real‑world scenarios, and provide structured feedback while working 8–20 hours weekly. This role is fully remote and EU/UK‑based,...


  • Madrid, Community of Madrid, España Aderen Jornada completa

    Aderen is seeking a Senior AI/Platform Engineer to lead architecture discussions and deliver a self-service Mosaic AI platform. You will work with delivery teams to translate requirements into scalable AI agent architectures and governance. This is a long-term freelance role with a fully remote setup in Spain. The role demands deep Mosaic Mosaic AI...


  • Madrid, Community of Madrid, España RemoteFetch Jornada completa

    10x Team is seeking a freelance Process Engineering Consultant - AI Trainer to refine AI outputs in process engineering, operations management, and workflow design. The role is remote, EU/UK-based, and part-time (8-20 hrs/week), with flexible project-based assignments. You will develop real-world scenarios, assess AI recommendations, and provide structured...


  • madrid, España Mindrift Jornada completa

    About the roleHelp train and evaluate AI agents on expert-level fluid simulation tasks. You'll take CAD geometry, set up and run simulations, build verified reference solutions, and write Python checks for the agent's results. RequirementsA degree in Mechanical or Aerospace Engineering, or a related field such as energy or oil & gas. A PhD is preferred but...


  • Madrid, Community of Madrid, España Lifted (an Upwork Company) Jornada completa

    This opportunity is ideal for experienced Structural Engineers who enjoy solving complex engineering problems and want to apply their expertise to cutting-edge AI technology. What You'll Do:Design realistic AI training tasks based on structural engineering concepts and real-world design challenges. Create clear engineering problem statements covering...