Empleos de experte stripe freelance en Valencia

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Expert(e) Stripe Freelance based in Spain. This freelance role offers the opportunity to optimize payment infrastructure across a portfolio of international subscription-based SaaS products. You will audit existing Stripe...

Please submit your CV in English and indicate your level of English proficiency. ¿Es usted el solicitante adecuado para esta oportunidad? Descúbralo leyendo el resumen del puesto a continuación.Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems....

Jobgether SRL seeks an Arabic (Gulf) Language Expert for a Freelance AI Trainer project based in Spain. You will evaluate AI outputs in Gulf Arabic, identify linguistic inaccuracies, and provide detailed feedback to improve model performance while working remotely. Ideal candidates have expert Gulf Arabic proficiency, linguistics background, and strong...

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for an Expert(e) PayPal Freelance based in Spain. This freelance role offers the opportunity to take ownership of PayPal payment capabilities across a portfolio of international subscription-based SaaS products. You will focus on...

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for an Expert(e) Adyen Freelance based in Spain. This freelance role offers the opportunity to make a measurable impact on payment performance across a portfolio of international SaaS products. You will take ownership of auditing,...

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for an Arabic (Gulf) Language Expert – Freelance AI Trainer Project based in Spain. We are seeking an Arabic (Gulf) Language Expert to help shape the next generation of artificial intelligence through specialized linguistic knowledge...

Welo Data in Spain seeks an Expert Rater to support and mentor fellow raters, guiding them to improve rating accuracy and decision-making while aligning with client expectations. You will run test rounds with clients and ensure templates, workflows, and quality standards are followed. Collaboration with research, development, and the Community Experience...

Lever, Inc. seeks an Expert Adyen freelance specialist based in Spain to audit, stabilize and optimize Adyen integrations across multiple SaaS products. You will improve authorization and renewal performance, strengthen fraud and dispute management, and deliver hands-on enhancements with a high degree of autonomy. You will collaborate with payment,...

Welo Data is seeking an Expert Rater to mentor and guide fellow raters, improving rating accuracy and decision quality. You will facilitate client test rounds, interpret templates, and ensure alignment with quality benchmarks across the team. You will coach, monitor progress, and drive data-informed decisions while collaborating with cross‑functional teams...

Financial Systems & Accounting ExpertRole Type: ContractorLocation: Remote, WorldwideSchedule: FlexibleRole Overviewmicro1 is engaging Financial Systems & Accounting Experts to support a customer project focused on accounting operations, financial reporting, and ERP systems. You'll apply your accounting judgment and financial systems expertise to evaluate...

ADAMAS Consulting is seeking a PV Auditor on a freelance basis to cover audits across Europe, with both full and part-time options (0.6+ FTE).The role includes planning, conducting, reporting and CAPA follow-up in Pharmacovigilance audits, and performing GVP quality assurance for pharmaceutical/biotech clients.Ideal candidates will have experience leading PV...

OverviewAs an Expert Rater (ER), you will specialize in providing Rater's support and guidance. You will be instrumental in enhancing the knowledge and skills of other Raters, with a particular focus on developing their rating expertise. Your responsibilities include facilitating client test rounds, understanding templates and workflows, cascading quality...

Mindrift offers a remote freelance CFD role where you will train and evaluate AI agents on expert-level fluid dynamics tasks. You will take CAD geometry, set up and run simulations, build verified reference solutions, and write Python checks to validate the agent results. Estimated 10–20 hours per week during active phases with compensation up to $31 per...

Join to apply for the Cloud Computing Expert - UN Agencyrole at NTT DATA Europe & Latam1 day ago Be among the first 25 applicants Join to apply for the Cloud Computing Expert - UN Agencyrole at NTT DATA Europe & LatamGet AI-powered advice on this job and more exclusive features. For a UN Agency based in Valencia, NTT DATA is currently looking for a Cloud...

Customer Support Representative - AI Training (Freelance - Remote) About Prolific Prolific is not just another player in the AI space – we are building the biggest pool of quality human data in the world. Over 35,000 AI developers, researchers, and organizations use Prolific to gather data from paid study participants with a wide variety of experiences,...

Senior Machine Learning Expert (AI Training) What if your deep expertise in machine learning could directly shape how the world's most advanced AI systems think, plan, and solve problems? We're looking for Senior Machine Learning Experts to author the reasoning traces that teach LLMs how to reason step by step — turning your technical intuition into the...

Customer Support Representative - AI Training (Freelance - Remote)About ProlificProlific is not just another player in the AI space – we are building the biggest pool of quality human data in the world.Over 35,000 AI developers, researchers, and organizations use Prolific to gather data from paid study participants with a wide variety of experiences,...

Modalidad: freelance / consultoría puntual · remoto · impartición online · honorarios 350€ por sesión · sesiones en noviembre y diciembre 2026 Bridge for Billions es una plataforma global de emprendimiento que diseña y opera programas de incubación y aceleración junto a organizaciones aliadas, conectando a emprendedores con la metodología, los...

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Freelance Packaging Designer – AI-Assisted Concept Development based in Spain.As a freelance packaging designer, you will transform creative ideas into compelling packaging concepts using a combination of design expertise and...

About the role Help 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. Requirements A degree in Mechanical or Aerospace Engineering, or a related field such as energy or oil & gas. A PhD is preferred...