Empleos de freelance data annotator en Zaragoza

Please submit your resume in English and indicate your level of English.What We DoAt Toloka, we connect smart, curious people from around the world with freelance online tasks that train and improve artificial intelligence.About The RoleAnnotation is what helps AI make sense of the world. As an annotator, you may be invited to take part inonline projectssuch...

Oxigent Technologies is seeking a Commissioning Engineer specializing in Cooling (Freelance) to join international projects focused on startup, commissioning, and technical support of data center cooling systems. The role requires a Mechanical or Electrical Engineering degree, 5+ years of HVAC/cooling experience, and English proficiency at B2+/C1.EU passport...

G2 Recruitment is seeking a Freelance Project Manager with a Controls Engineering background for a hyperscale Data Centre project in Zaragoza, Spain. The role demands strong leadership of day-to-day service tickets, maintenance planning, and on-site vendor coordination. You will oversee BMS/EBMS tasks, report progress, and drive solutions in a fast-paced,...

Seeking a Data Scientist AI Trainer for a remote, freelance role to design computational problems for AI training. Requires Python, SQL, statistical analysis, and ML expertise.

This position is listed on behalf of a partner company, who manages all applications and next steps.Our partner is looking for a Freelance Campaign Manager, Influencer Marketing based in Spain.In this role, you will manage high-volume influencer marketing campaigns for leading international consumer brands across multiple European markets.You will oversee...

Commissioning Engineer specializing in Cooling at a leading multinational provider of energy and technological solutions? At Oxigent Technologies, we are looking for a Commissioning Engineer specializing in Cooling (Freelance) to collaborate on international projects focused on the startup, commissioning, and technical support of data center cooling...

Darwin Recruitment is seeking a Data Engineer (ETL Migration) for a 2-month freelance engagement. The role focuses on migrating on-premise ETL workloads to a cloud environment with proper orchestration, scheduling, and logging in a regulated FinTech setting.You will leverage Airflow (dbt beneficial), write strong SQL, and maintain security-conscious logging...

Are you ready to be inspired, challenged, motivated to do your best, and have fun while you're at it? We are looking for a Freelance Mobile Engineer (iOS) to support the development of innovative digital products used by millions of users worldwide.As part of an international product team in the automotive and mobility sector, you will contribute to the...

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Freelance Campaign Manager, Influencer Marketing, CPG based in Spain.In this role, you will lead large-scale influencer marketing campaigns for a major global consumer brand across multiple European markets. You will manage the...

Darwin Recruitment seeks a Data Engineer (ETL Migration) for a 2-month remote freelance engagement with a European FinTech client.The role focuses on migrating on-premise ETL workloads to a secure cloud solution with proper orchestration, scheduling, and logging to support auditability.The candidate will work on cloud migration, require strong SQL, and...

ConexusDX Part of the Recolution Group is seeking an experienced Senior SAP FICO Consultant (Remote, Freelance) to drive SAP Finance transformations within a multi-entity environment. You will collaborate with Finance and IT to deliver SAP FI/CO solutions, support data migration, and enhance financial processes across GL, AP, AR, Asset Accounting and CO.The...

En Kapres Technology buscamos un Consultor o Arquitecto Senior especializado en Palo Alto (Freelance) para colaborar en un proyecto con un importante cliente del sector de las Tecnologías de la Información (IT) y la Ciberseguridad.Para un servicio de migración de redes y seguridad hacia Palo Alto, incluyendo firewalls, conectividad con Azure y SD-WAN....

Alignerr is seeking a Machine Learning Engineer (AI Data Trainer) to help train advanced AI models by producing expert?level, step?by?step reasoning data.The role is fully remote on an hourly contract, offering ***** hours per week and flexible scheduling.You will craft precise reasoning logs and annotated workflows, demonstrating how an expert tackles...

About RealAdvisor RealAdvisor is one of the leading digital platforms in the European real estate ecosystem. Founded in Switzerland, we now support 7,000+ real estate agencies and attract 10+ million users per year across Europe.RealAdvisor is one of the leading digital platforms in the European real estate ecosystem. Founded in Switzerland, we now support...

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...

Jobgether is assisting a partner company in recruiting a Freelance UAC Media Buyer based in Spain.You will independently manage Google UAC campaigns for the iGaming vertical, focusing on high-quality traffic, efficiency, and scalable growth.Responsibilities include testing new GEOs, optimizing campaigns, and handling substantial budgets.A data-driven,...

Darwin Recruitment is sourcing a Data Engineer (ETL Migration) for a remote, Europe-wide freelance assignment with a FinTech client.The focus is migrating on-premise ETL workloads to a secure cloud, with proper orchestration, logging, and audit-ready documentation in a regulated environment.You will work remotely across Europe for a 2-month contract, with...

At Shakers we're partnering with a fast-growing European conversational AI scale-up, recently backed by a €10M investment, to bring on a Senior AI Customer Success Manager who combines enterprise client ownership with real technical depth.This is a freelance project, remote-first in Madrid, full time, owning how large Spanish enterprises get value from...

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior SEO Specialist (Freelance) based in Spain.Join an international affiliate marketing business as a Senior SEO Specialist, helping manage and scale a portfolio of branded websites across multiple markets. You will develop and...

About The RoleWhat if your curiosity, critical thinking, and love of getting to the truth could directly influence how AI communicates facts to millions of people? We're looking for Research Analysts to verify AI-generated information, dig into topics across every subject imaginable, and help ensure the AI systems shaping our world are built on a solid...