Postings read on 15 November 2026 from employers' public job boards. Who may apply from where is quoted from each posting; check it on the posting before you apply.
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Remote AI training and data labelling contract jobs in Spain: 131 roles
Looking for remote AI training and data labelling contract jobs in Spain? 131 roles are open to people who live in Spain, at 9 employers, read on 15 November 2026: 42 name Spain and 89 name a region that includes it. Another 530 roles are open anywhere outside the US.
Roles that name Spain 42
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Andromeda Delta - Audio Transcription Adjudicator V2 - Spanish (Spain)
Board label: Spain
Employer's words: none on who may apply from where
Shown here as open to: Spain
Why it counts as contract work: the employment-type field on the job board says “Freelance”
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Audio Transcription Specialist (Catalan Language)
Board label: Remote in Spain
Employer's words: none on who may apply from where
Shown here as open to: Spain
Why it counts as contract work: the employment-type field on the job board says “Contract Full time”
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AI Conversation Recording Contributor - Catalan
Board label: Barcelona / Sabadell / Terrassa / Tarragona / Girona / Lleida / Mataró / Reus / Manresa / Vic / Granollers / Vilanova i la Geltrú / Igualada
Employer's words: none on who may apply from where
Shown here as open to: Spain
Why it counts as contract work: the employment-type field on the job board says “Temporary/Contract”
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Transcription / Subtitling Specialist (Freelance)
Board label: Germany / Tokyo / Spain / Korea / United States / Japan / Brazil / Denmark / Portugal / Mexico / Sweden / Poland / United Kingdom / Netherla
Employer's words: “This role is remote and can be executed globally.”
Shown here as open to: anywhere in the world
Why it counts as contract work: the title says “Transcription / Subtitling Specialist (Freelance)”
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Search Engine Evaluator - Spanish
Postings (3), each with its board label and the employer's words:
- Madrid / Barcelona / Zaragoza / Bilbao / A Coruña / Girona / Málaga / Seville (title: Search Engine Evaluator - Spanish (Spain)): “Location: Spain (Work from Home).”
- Buenos Aires / Cordoba / Mendoza / Rosario / Mar del Plata / Salta / Santa Fe / San Miguel de Tucuman (title: Search Engine Evaluator - Spanish (Argentina)): “Location: Argentina (Work from Home).”
- Mexico City / Guadalajara / León / Monterrey / Puebla / Querétaro / Mérida / Tijuana (title: Search Engine Evaluator - Spanish (Mexico)): “Location: Mexico (Work from Home).”
Shown here as open to: Argentina, Mexico, Spain
Why it counts as contract work: the employment-type field on the job board says “Temporary/Contract”
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Andromeda Delta - Audio Transcription Rater V2 - Spanish (Spain)
Board label: Spain
Employer's words: none on who may apply from where
Shown here as open to: Spain
Why it counts as contract work: the employment-type field on the job board says “Freelance”
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Voice Talent Required - British English (female) - Remote
Board label: Spain (Remote) / Spain
Employer's words: none on who may apply from where
Shown here as open to: Spain
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Voice Talent Required - American English (female) - Remote
Board label: Spain (Remote) / Spain
Employer's words: none on who may apply from where
Shown here as open to: Spain
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Voice Talent Required - Spanish (female) - Remote
Board label: Spain (Remote) / Spain
Employer's words: none on who may apply from where
Shown here as open to: Spain
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Voice Talent Required - German (female) - Remote
Board label: Spain (Remote) / Spain
Employer's words: none on who may apply from where
Shown here as open to: Spain
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Freelance - Spanish Data Annotation Specialist (100% Remote within Europe)
Board label: Barcelona / Amsterdam / Warsaw / Spain
Employer's words: none on who may apply from where
Shown here as open to: Netherlands, Poland, Spain, Europe
Why it counts as contract work: the title says “Freelance - Spanish Data Annotation Specialist (100% Remote within Europe)”
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Researcher/Scientist - AI Trainer - Freelance - 8-20 hrs/week - Remote
Board labels (3 postings): Spain | France | Germany
Employer's words: “Based in the EU or UK”
Shown here as open to: France, Germany, Spain, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Competition Law Consultant - AI Trainer - Freelance - 8-20 hrs/week - Remote
Board labels (4 postings): Spain | Sweden | Austria | Ireland
Employer's words: “We are looking for competition law specialists based in the EU or UK to help train and improve AI systems specializing in competition law, regulatory compliance, and antitrust issues.”
Shown here as open to: Austria, Ireland, Spain, Sweden, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Security Architect - AI Trainer - Freelance - 8-20hrs/week - Remote
Board labels (2 postings): Spain | Ireland
Employer's words: “We are looking for knowledgeable security architects based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered security systems.”
Shown here as open to: Ireland, Spain, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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IAM Consultant (Identity & Access Management) - AI Trainer - Freelance - 8-20hrs/week - Remote
Board labels (3 postings): Spain | The Netherlands / Netherlands | Ireland
Employer's words: “We are looking for knowledgeable IAM experts based in the EU or UK to help train AI systems in identity governance, access control, regulatory compliance, and IAM best practices.”
Shown here as open to: Ireland, Netherlands, Spain, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Senior Infrastructure Optimization Specialist - AI Trainer - Freelance - 8-20 hrs/week - Remote
Board labels (4 postings): Spain | UK | Sweden | Ireland
Employer's words: “We’re seeking experienced infrastructure optimization specialists, based in the EU or UK, to ensure AI-generated recommendations and workflows are technically valid, efficient, and relevant to real-world practices.”
Shown here as open to: Ireland, Spain, Sweden, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Senior Pricing Specialist - AI Trainer - Freelance - 8-20hrs/week - Remote
Board labels (4 postings): Spain | Spain | Belgium | Sweden
Employer's words: “We are seeking Pricing Managers based in the EU or UK to ensure AI-generated outputs meet the practical standards and nuanced decision-making expected in industry.”
Shown here as open to: Belgium, Spain, Sweden, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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eIDAS2 Specialist - AI Trainer - Freelance - 8-20 hrs/week - Remote
Board labels (2 postings): Spain | Ireland
Employer's words: none on who may apply from where
Shown here as open to: Ireland, Spain
Why it counts as contract work: the employment-type field on the job board says “Contract”
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AI Training Contributor - Spanish - Remote
Board labels (2 postings): Spain (Remote) / Spain (title: AI Training Contributor - Spanish (Spain) - Remote) | Mexico (Remote) / Mexico (title: AI Training Contributor - Spanish (Mexico) - Remote)
Employer's words: none on who may apply from where
Shown here as open to: Mexico, Spain
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Employer Branding Strategist - AI Trainer - Freelance - 8-20 hrs/week - Remote
Board label: Spain
Employer's words: “You must be located in the EU or UK to be eligible.”
Shown here as open to: Spain, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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System Operations Engineer - AI Trainer - Freelance - 8-20hrs/week - Remote
Board labels (3 postings): Spain | Germany | UK
Employer's words: “We are seeking experienced system operations engineers based in the EU or UK to review, refine, and train AI to better understand and address real-world operational challenges.”
Shown here as open to: Germany, Spain, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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M&A Consultant - AI Trainer - Freelance - 8-20hrs/week - Remote
Board label: Spain
Employer's words: “We are seeking experienced M&A consultants based in the EU or UK to enhance the realism, technical accuracy, and actionable value of AI-powered M&A systems.”
Shown here as open to: Spain, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Corporate Finance Advisor - AI Trainer - Freelance - 8-20hrs/week - Remote
Board label: Spain
Employer's words: “We're seeking skilled corporate finance advisors based in the EU or UK to aid in training AI systems focused on finance strategies, corporate advisory, and best practices in financial decision-making.”
Shown here as open to: Spain, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Process Engineering Consultant - AI Trainer - Freelance - 8-20 hrs/week - Remote
Board label: Spain
Employer's words: “We seek experienced process engineering consultants, based in the EU or UK, to help train AI systems focused on process improvement, workflow optimization, and best practices in engineering operations.”
Shown here as open to: Spain, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Quantitative Modeler - AI Trainer - Freelance - 8-20 hrs/week - Remote
Board label: Spain
Employer's words: “We’re searching for skilled quantitative modelers residing in the EU or UK to improve and guide AI’s approach to data-driven reasoning and complex modeling challenges.”
Shown here as open to: Spain, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Treasury Analyst - AI Trainer - Freelance - 8-20hrs/week - Remote
Board label: Spain
Employer's words: “We are seeking skilled treasury analysts based in the EU or UK to help train AI systems in treasury management, cash flow analysis, risk mitigation, compliance, and financial best practices.”
Shown here as open to: Spain, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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VP Sales - AI Trainer - Freelance - 8-20 hrs/week - Remote
Board label: Spain
Employer's words: “We are seeking senior sales professionals based in the EU or UK to ensure AI-generated sales content and decisioning is accurate, relevant, and grounded in industry best practices.”
Shown here as open to: Spain, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Cloud Architect - AI Trainer - Freelance - 8-20hrs/week - Remote
Board label: Spain
Employer's words: “We are seeking knowledgeable cloud architects based in the EU or UK to help improve the quality, technical accuracy, and practical relevance of AI-driven systems.”
Shown here as open to: Spain, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Project Lion - Senior Prompt Engineer (Remote, Part-Time)
Postings (6), each with its board label and the employer's words:
- Spain (title: Project Lion - Senior Prompt Engineer - Spain (Remote, Part-Time)): “Location: Must be based in Spain.”
- France (title: Project Lion - Senior Prompt Engineer - France (Remote, Part-Time)): “Location: Must be based in France.”
- Germany (title: Project Lion - Senior Prompt Engineer - Germany (Remote, Part-Time)): “Location: Must be based in Germany.”
- Italy (title: Project Lion - Senior Prompt Engineer - Italy (Remote, Part-Time)): “Location: Must be based in Italy.”
- Japan (title: Project Lion - Senior Prompt Engineer - Japan (Remote, Part-Time)): “Location: Must be based in Japan.”
- Porto, Portugal (title: Project Lion - Senior Prompt Engineer - Portugal (Remote, Part-Time)): “Location: Must be based in Portugal.”
Shown here as open to: France, Germany, Italy, Japan, Portugal, Spain
Why it counts as contract work: the employment-type field on the job board says “Freelance”
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Geospatial Reasoning Specialist (Senior) - Freelance AI Trainer Project
Board labels (11 postings): Spain / Worldwide - Remote | India / Worldwide - Remote | South Africa / Worldwide - Remote | Ghana / Worldwide - Remote | Argentina / Worldwide - Remote | Mexico / Worldwide - Remote, and 5 more on the employer's board
Employer's words: none on who may apply from where
Shown here as open to: anywhere in the world
Why it counts as contract work: the title says “Geospatial Reasoning Specialist (Senior) - Freelance AI Trainer Project”
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Ukrainian Language Specialist - Freelance AI Trainer Project
Board labels (6 postings): Spain / Worldwide - Remote | Italy / Worldwide - Remote | Germany / Worldwide - Remote | United States of America / Worldwide - Remote | Canada / Worldwide - Remote | Poland / Worldwide - Remote
Employer's words: none on who may apply from where
Shown here as open to: anywhere in the world
Why it counts as contract work: the title says “Ukrainian Language Specialist - Freelance AI Trainer Project”
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Asturian Language Specialist - Freelance AI Trainer Project
Board labels (2 postings): Spain / Worldwide - Remote | World Wide - Remote / Worldwide - Remote
Employer's words: none on who may apply from where
Shown here as open to: anywhere in the world
Why it counts as contract work: the title says “Asturian Language Specialist - Freelance AI Trainer Project”
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Occitan Language Specialist - Freelance AI Trainer Project
Board labels (2 postings): Spain / Worldwide - Remote | World Wide - Remote / Worldwide - Remote
Employer's words: none on who may apply from where
Shown here as open to: anywhere in the world
Why it counts as contract work: the title says “Occitan Language Specialist - Freelance AI Trainer Project”
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Catalan Language Specialist - Freelance AI Trainer Project
Board label: Spain / Worldwide - Remote
Employer's words: none on who may apply from where
Shown here as open to: anywhere in the world
Why it counts as contract work: the title says “Catalan Language Specialist - Freelance AI Trainer Project”
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Spanish Language Specialist- Freelance AI Trainer Project
Board labels (4 postings): Spain / Worldwide - Remote (title: Spanish Language Specialist (Spain) - Freelance AI Trainer Project) | Honduras / Worldwide - Remote (title: Spanish (Caribbean) Language Specialist- Freelance AI Trainer Project) | Chile / Worldwide - Remote (title: Spanish (Chile) Language Specialist - Freelance AI Trainer Project) | Mexico / Worldwide - Remote (title: Spanish (Mexico) Language Specialist - Freelance AI Trainer Project)
Employer's words: none on who may apply from where
Shown here as open to: anywhere in the world
Why it counts as contract work: the title says “Spanish (Caribbean) Language Specialist- Freelance AI Trainer Project”
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LaTex Specialist (Fluent in Spanish - Spain) - Freelance AI Trainer Project
Board label: World Wide - Remote / Worldwide - Remote
Employer's words: none on who may apply from where
Shown here as open to: anywhere in the world
Why it counts as contract work: the title says “LaTex Specialist (Fluent in Spanish - Spain) - Freelance AI Trainer Project”
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Galician Language Specialist - Freelance AI Trainer Project
Board label: Spain / Worldwide - Remote
Employer's words: none on who may apply from where
Shown here as open to: anywhere in the world
Why it counts as contract work: the title says “Galician Language Specialist - Freelance AI Trainer Project”
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Science Specialist (Fluent in Spanish - Spain) - Freelance AI Trainer Project
Board label: Spain / Worldwide - Remote
Employer's words: none on who may apply from where
Shown here as open to: anywhere in the world
Why it counts as contract work: the title says “Science Specialist (Fluent in Spanish - Spain) - Freelance AI Trainer Project”
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Coding Specialist (Fluent in Spanish - Spain) - Freelance AI Trainer Project
Board label: Spain / Worldwide - Remote
Employer's words: none on who may apply from where
Shown here as open to: anywhere in the world
Why it counts as contract work: the title says “Coding Specialist (Fluent in Spanish - Spain) - Freelance AI Trainer Project”
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Mathematics Specialist (Fluent in Spanish - Spain) - Freelance AI Trainer Project
Board label: Spain / Worldwide - Remote
Employer's words: none on who may apply from where
Shown here as open to: anywhere in the world
Why it counts as contract work: the title says “Mathematics Specialist (Fluent in Spanish - Spain) - Freelance AI Trainer Project”
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STEM Specialist (Fluent in Spanish - Spain) - Freelance AI Trainer Project
Board label: Spain / Worldwide - Remote
Employer's words: none on who may apply from where
Shown here as open to: anywhere in the world
Why it counts as contract work: the title says “STEM Specialist (Fluent in Spanish - Spain) - Freelance AI Trainer Project”
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Ads Quality Rater - Catalan (Spain)
Board label: Spain
Employer's words: “Location: Remote/work from home - must be based in Spain”
Shown here as open to: Spain
Why it counts as contract work: the posting says “You must legally be able to work on freelance projects in Spain.”
Roles that name a region that includes Spain newest 18 of 89
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LLM Researcher
Board label: Europe
Employer's words: none on who may apply from where
Shown here as open to: Europe
Why it counts as contract work: the employment-type field on the job board says “Freelance Contract”
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Chief Technology Officer - AI Trainer - Freelance - 8-20 hrs/week - Remote
Board label: Ireland
Employer's words: “Based in the EU or UK”
Shown here as open to: Ireland, United Kingdom, Europe
Why it counts as contract work: the title says “Chief Technology Officer - AI Trainer - Freelance - 8-20 hrs/week - Remote”
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Finance Director - AI Trainer - Freelance - 8-20 hrs/week - Remote
Board label: Ireland
Employer's words: “Based in the EU or UK”
Shown here as open to: Ireland, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Surgeon - AI Trainer - Freelance - 8-20 hrs/week - Remote
Board label: Poland
Employer's words: “We are looking for knowledgeable surgeons based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered medical systems.”
Shown here as open to: Poland, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Senior Accountant / Auditor – AI Trainer - Freelance - 8-20 hrs/week - Remote
Board label: Germany
Employer's words: “We are looking for knowledgeable senior accountants and auditors based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered financial systems.”
Shown here as open to: Germany, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Insurance Broker - AI Trainer - Freelance - 8-20 hrs/week - Remote
Board label: UK
Employer's words: “We are looking for knowledgeable insurance brokers based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered insurance systems.”
Shown here as open to: United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Project Manager – AI Trainer - Freelance - 8-20 hrs/week - Remote
Board label: Portugal
Employer's words: “We are looking for knowledgeable project managers based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered project management systems.”
Shown here as open to: Portugal, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Marketing Specialist – AI Trainer
Board label: Belgium
Employer's words: “We are looking for knowledgeable marketing specialists based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered marketing systems.”
Shown here as open to: Belgium, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Dutch, German or French Bilingual Specialist – AI Trainer - Freelance - 8-20 hrs/week - Remote
Board label: The Netherlands / Netherlands
Employer's words: “We are looking for bilingual specialists based in the EU or UK who are fluent in Dutch, German, or French to enhance the accuracy, depth, and real-world relevance of AI-powered language systems.”
Shown here as open to: Netherlands, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Machine Learning Engineer - AI Trainer - Freelance - 8-20 hrs/week - Remote
Board label: Germany
Employer's words: “We are looking for knowledgeable machine learning engineers based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered systems.”
Shown here as open to: Germany, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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AI Specialist - AI Trainer - Freelance - 8-20hrs/week - Remote
Board label: UK
Employer's words: “We are looking for knowledgeable AI specialists based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered systems.”
Shown here as open to: United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Data Scientist - AI Trainer - Freelance - 8-20hr p/w - Remote
Board label: UK
Employer's words: “We are looking for knowledgeable data scientists based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered data science solutions.”
Shown here as open to: United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Software Architect - AI Trainer - Freelance - 8-20hrs/week - Remote
Board label: Germany
Employer's words: “We are seeking experienced software architects based in the EU or UK to help enhance the quality, accuracy, and real-world value of AI-powered systems.”
Shown here as open to: Germany, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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DevOps Lead - AI Trainer - Freelance - 8-20hrs/week - Remote
Board label: Poland
Employer's words: “We are looking for knowledgeable DevOps engineers based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered DevOps solutions.”
Shown here as open to: Poland, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Platform Engineer - AI Trainer - Freelance - 8-20hrs/week - Remote
Board label: UK
Employer's words: “We are looking for knowledgeable platform engineers based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered engineering systems.”
Shown here as open to: United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Systems Architect - AI Trainer - Freelance - 8-20hrs/week - Remote
Board label: The Netherlands / Netherlands
Employer's words: “We are looking for knowledgeable systems architects based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered technology systems.”
Shown here as open to: Netherlands, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Product Designer - AI Trainer - Freelance - 8-20hrs/week - Remote
Board label: France
Employer's words: “We are looking for knowledgeable product designers based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered design systems.”
Shown here as open to: France, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
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Delivery Manager - AI Trainer - Freelance - 8-20hrs/week - Remote
Board label: France
Employer's words: “We are looking for knowledgeable delivery managers based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered operational systems.”
Shown here as open to: France, United Kingdom, Europe
Why it counts as contract work: the employment-type field on the job board says “Contract”
Not listed on this page 601
601 more roles are not listed here; they are on each employer's page and the ai training and data labelling page. By employer: Meridial 514, 10x Team 65, Aptura 15, Welo Global 6, RWS TrainAI 1.
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