Most AI training projects hire only in the countries their contracts cover, and many never say which. These are the 135 open roles that state they accept people living in Spain: 11 that name it among the countries they hire in, and 124 open worldwide. Each one states its rate, hours and languages before you apply.
Counts are recalculated every hour from the roles open right now. Newest role added .
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We are looking for highly skilled Machine Learning Experts to contribute to an AI training project involving model development, training and inference systems, numerical computing, performance optimization, and Python.
$80–$150/hr
Relevant expertise matters more than years of experience
$50–$100/hr
We are looking for a highly skilled Mechanical Engineering Expert to contribute to an AI training project involving engineering design, physical modeling, simulation, technical problem-solving, and Python.
$80–$150/hr
We are looking for highly skilled coding puzzle solvers to contribute to an AI training project involving algorithmic reasoning, debugging, constrained technical problems, and reproducible software solutions.
$50–$80/hr
Schedule: Flexible—you can choose the hours and days you work, including weekends if desired
$80–$150/hr
The hiring partner is engaging Mathematics Experts to contribute their knowledge and analytical skills to an advanced customer project.
$80–$90/hr
We are looking for a highly skilled Materials Science Expert to contribute to an AI training project involving computational materials science, materials modeling, scientific simulation, and Python.
$80–$150/hr
Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world…
$100–$150/hr
Schedule: 15-20 hrs/week. Fully flexible (Can accomodate after hours + weekends if needed)
$80–$150/hr
The hiring partner is one of the world’s fastest-growing AI companies accelerating the advancement and deployment of powerful AI systems.
Rate on request
The hiring partner is one of the world’s fastest-growing AI companies accelerating the advancement and deployment of powerful AI systems.
Rate on request
the hiring partner is seeking experienced German Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab.
$50/hr
the hiring partner is seeking experienced English Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab.
$50/hr
the hiring partner is seeking experienced Spanish Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab.
$50/hr
the hiring partner is partnering with a venture-backed AI lab building frontier AI platforms and physics-based foundation models for chemistry, materials science, and drug discovery.
$60–$100/hr
the hiring partner is hiring experienced musicians to evaluate generative music AI models, in partnership with a leading AI lab.
$42–$78/hr
We are looking for engineers who build and operate LLM agents in production, and who have real visibility into how agents are actually used inside a company.
$100–$500per task
The hiring partner is partnering with a major technology company building AI design tooling on a paid research study with senior designers.
$150–$250/hr
The hiring partner is seeking experienced Pro Bono Counsel to evaluate AI-generated legal analyses involving civil legal services and access-to-justice issues.
$170/hr
the hiring partner is seeking senior mechanical engineering professionals to build evaluation tasks for AI systems operating in Fortune 500 enterprise product design and manufacturing contexts.
$70–$80/hr
