3,275 ofertas de qa engineer freelance en toda España.

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Jobgether

Language Alignment & Resource Partner - Freelance AI Trainer Project

Hace 5 días

Remoto
Contrato

10 $/hora

... [{"name": "por_hora", "text": "Por hora", "categoryName": "Salary_Payment"}, {"name": "contratista", "text": "Contratista", "categoryName": "Type of employment"}, {"name": "freelance", "text": "Freelance", "categoryName": "Type of employment"}, {"name": "trabajo_remoto", "text": "Remoto", "categoryName": "Working conditions"}]

España, España

Jobgether

German Audio Evaluations Specialist - Freelance AI Trainer Project

Hace 5 días

España, España

10x Team B.V

eIDAS2 Specialist - AI Trainer - Freelance - 8-20 hrs/week - Remote

Hace 5 días

Remoto
Contrato

... opportunities arise. This can happen within hours, but it may also take months, depending on the researchers at the AI labs and their project needs. [{"name": "freelance", "text": "Freelance", "categoryName": "Type of employment"}, {"name": "contrato", "text": "Contrato", "categoryName": "Type of employment"}, {"name": "trabajo_remoto", ...

España, España

10x Team

eIDAS2 Specialist - AI Trainer - Freelance - 8-20 hrs/week - Remote

Hace 5 días

Remoto
Contrato

... opportunities arise. This can happen within hours, but it may also take months, depending on the researchers at the AI labs and their project needs. [{"name": "freelance", "text": "Freelance", "categoryName": "Type of employment"}, {"name": "trabajo_remoto", "text": "Remoto", "categoryName": "Working conditions"}, {"name": ...

España, España

Jobgether

Photoshop Specialist - Freelance AI Trainer Project

Hace 5 días

Remoto
Contrato

8 $/hora

... "por_hora", "text": "Por hora", "categoryName": "Salary_Payment"}, {"name": "contratista", "text": "Contratista", "categoryName": "Type of employment"}, {"name": "freelance", "text": "Freelance", "categoryName": "Type of employment"}, {"name": "contrato", "text": "Contrato", "categoryName": "Type of employment"}, {"name": "trabajo_remoto", ...

España, España

10x Team

Senior Pricing Specialist - AI Trainer - Freelance - 8-20hrs/week - Remote

Hace 5 días

Remoto
Contrato

Freelance | 8-20 hrs/week | Remote (EU/UK) Pricing Manager - AI Trainer (Freelance, 8-20 hrs/week, Remote EU/UK) Are you a seasoned professional in pricing strategy, quantitative analysis, or financial modeling? Are you interested in helping shape the future of artificial intelligence by teaching AI to reason about real-world ...

España, España

10x Team

Remote Quantitative Modeler & AI Trainer — Freelance

Hace 5 días

Remoto
Contrato

... with global AI labs. Join a network that connects top independent experts with AI labs to accelerate data-driven reasoning and complex modeling [{"name": "freelance", "text": "Freelance", "categoryName": "Type of employment"}, {"name": "trabajo_remoto", "text": "Remoto", "categoryName": "Working conditions"}, {"name": ...

España, España

10x Team

Quantitative Modeler - AI Trainer - Freelance - 8-20 hrs/week - Remote

Hace 5 días

Remoto
Contrato

Ciencia de datos

Updated: 07 July 2026 Freelance | 8–20 hrs/week | Remote (EU/UK) Quantitative Modeler – AI Trainer – Freelance – 8–20 hrs/week – Remote (EU/UK) Freelance | 8–20 hrs/week | Remote (EU/UK) Are you an experienced quantitative modeler eager to shape the next generation of AI systems? Join 10x Team as a Freelance Quantitative ...

España, España

10x Team B.V

Quantitative Modeler - AI Trainer - Freelance - 8-20 hrs/week - Remote

Hace 5 días

Remoto
Contrato

Ciencia de datos

... real-world impact - from scaling startups to leading AI labs. Location Spain Employment Type Contract Location Type Remote Compensation Updated: 07 July 2026 Freelance | 8–20 hrs/week | Remote (EU/UK) Quantitative Modeler – AI Trainer – Freelance – 8–20 hrs/week – Remote (EU/UK) Freelance | 8–20 hrs/week | Remote (EU/UK) ...

España, España

Jobgether

Remote Biology AI Trainer - Freelance Project

Hace 5 días

Remoto
Contrato

... candidates hold a PhD in biology or a closely related field, with strong research or wet-lab experience and proven ability to explain complex concepts clearly. [{"name": "freelance", "text": "Freelance", "categoryName": "Type of employment"}, {"name": "trabajo_remoto", "text": "Remoto", "categoryName": "Working conditions"}]

España, España

ConexusDX Part of the Recolution Group

Remote SAP IS-U Customer Management Developer (Freelance)

Hace 5 días

Remoto
Contrato

... must be fluent in Spanish and able to work Spanish business hours, while contributing to technical delivery, debugging and system improvements. [{"name": "freelance", "text": "Freelance", "categoryName": "Type of employment"}, {"name": "contrato", "text": "Contrato", "categoryName": "Type of employment"}, {"name": "trabajo_remoto", ...

Madrid, España

Neara

Madrid, Spain: Freelance | (Corporate) Event Host

Hace 5 días

Híbrido
Contrato

$150 USD - $250 USD

... engage with a community of volunteers and non-profits. - Enjoy the freedom of building your own schedule and choose the events you want to host. [{"name": "freelance", "text": "Freelance", "categoryName": "Type of employment"}, {"name": "trabajo_hibrido", "text": "Trabajo h\u00edbrido", "categoryName": "Working conditions"}]

Madrid, España

litmind

Asistente de Iluminación Freelance para Sesiones en Barcelona

Hace 5 días

Tiempo completo
Tiempo parcial
Contrato

... convenir según experiencia y duración. Interesados: enviar presentación y tarifa por media jornada o jornada completa a [email protected]. [{"name": "freelance", "text": "Freelance", "categoryName": "Type of employment"}, {"name": "tiempo_completo", "text": "Tiempo completo", "categoryName": "Type of employment"}]

Barcelona, España

Jobgether

Umbundu Language Specialist - Freelance AI Trainer Project

Hace 6 días

Remoto
Contrato

8 $/hora

España, España

Jobgether

Remote Umbundu AI Language Specialist — Freelance

Hace 6 días

Remoto
Contrato

... feedback, and help shape prompts and evaluation methods. This flexible contract enables independent work from home with meaningful impact on AI [{"name": "freelance", "text": "Freelance", "categoryName": "Type of employment"}, {"name": "contrato", "text": "Contrato", "categoryName": "Type of employment"}, {"name": "trabajar_desde_casa", ...

España, España

Jobgether

Remote English-German Translator & Copy Editor (Freelance)

Hace 6 días

Remoto
Contrato

... translate from US English into German (de-DE/de-CH), copy-edit for clarity and consistency, perform MTPE as needed, and use CAT tools within a client platform. [{"name": "freelance", "text": "Freelance", "categoryName": "Type of employment"}, {"name": "trabajo_remoto", "text": "Remoto", "categoryName": "Working conditions"}]

España, España

EALDE Business School

Freelance de Comunicación Corporativa y Relaciones Públicas (PR)

Hace 6 días

Contrato

... Latinoamérica. - Autonomía para proponer y ejecutar, con poca burocracia. [{"name": "aprendiz", "text": "Aprendiz", "categoryName": "Type of employment"}, {"name": "autonomo", "text": "Aut\u00f3nomo", "categoryName": "Type of employment"}, {"name": "freelance", "text": "Freelance", "categoryName": "Type of employment"}]

Madrid, España

IQVIA

Phase III Freelance CRA - Spain (0.5 FTE)

Hace 6 días

Contrato

... experience, Phase III trial exposure, and fluency in Spanish and English. Ability to work independently and strong organizational skills are essential. [{"name": "freelance", "text": "Freelance", "categoryName": "Type of employment"}, {"name": "inicio_inmediato", "text": "Inicio inmediato", "categoryName": "Working conditions"}]

Barcelona, España

Gameloft

Lead UI Artist [Freelance]

Hace 6 días

Contrato

... to work in an inclusive equal opportunity workplace! - Or, just because you’re looking for a great place to work! Please note that only selected candidates will be contacted and your CV will be saved in our files for a period of 6 months. [{"name": "freelance", "text": "Freelance", "categoryName": "Type of employment"}]

Bellprat, España