Empleos de freelance machine learning developer python en Barcelona

We power people’s progress.At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled - and it’s creating real impact.We’ve just reached unicorn status with a $150M...

Vall d’Hebron Research Institute (VHIR) is a public sector institution that promotes and develops biomedical research, innovation and teaching at Vall d’Hebron University Hospital, one of the largest hospital campuses in Europe. The I2P2-RG (Infections and Immunodeficiencies in Paediatric Patients Research Group) conducts research and implementation...

Who we are   Aizon is a software-as-a-service provider that transforms manufacturing operations in life science industries using advanced analytics and artificial intelligence.We are a fast-growing company entering an exciting new stage of expansion, and we are looking for ambitious new team members who are motivated to directly impact our growth and...

About us Axiomatic AI is building a new class of AI systems designed to reason with the rigor of the scientific method. By combining deep learning with formal logic and physics-based modeling, we create verifiable, interpretable AI systems that collaborate with and support human researchers in high-stakes scientific and engineering workflows.  Our mission,...

Location: Barcelona - Spain (3 days working from the office and 2 days working from home)This is what you will do:The Associate Director, Global Health Economics & Outcomes Research (GHEOR) Analytics, develops and implements HEOR Analytics strategy, including conceptualizing real-world evidence studies, identification of data sources, study conduct and...

Location: Barcelona - Spain (3 days working from the office and 2 days working from home)This is what you will do:The Associate Director, Global Health Economics & Outcomes Research (GHEOR) Analytics, develops and implements HEOR Analytics strategy, including conceptualizing real-world evidence studies, identification of data sources, study conduct and...

Company DescriptionWho We AreCint is a pioneer in research technology (ResTech). Our customers use the Cint platform to post questions and get answers from real people to build business strategies, confidently publish research, accurately measure the impact of digital advertising, and more. The Cint platform is built on a programmatic marketplace, which is...

About usSatispay began by rethinking the simple act of a payment to remove the friction from our daily routines. But we didn't stop there. Today, we are building a complete financial platform designed to empower people and concretely improve their lives. By giving our 6 million users a clear, open path to pay, save, and invest, we are evolving into the...

About Comply365 The Comply365 platform is an industry-first interconnected, intelligent platform with best-in-class solutions across Operational Content Management, Safety, Risk & Quality Management, and Training Management. Powered by industry-specific AI, our unified platform connects data and insights across operations, safety, and training -...

We are seeking a highly motivated and experienced Senior Healthcare Research & Data Analyst to join our Life Science & Healthcare division in Barcelona.This role involves working with complex real‑world healthcare datasets and supporting analytical projects in partnership with leading MedTech organizations. You will have the opportunity to collaborate...

We power people’s progress.At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled - and it’s creating real impact.We’ve just reached unicorn status with a $150M...

Position NameData Analyst & QA EngineerAbout the profileWe’re looking for a Data Analyst and QA Engineer (Hybrid role) to join our Data and AI Engineering team. This role is ideal for those with a quality-first mindset - passionate about profiling, testing, and safeguarding the integrity of data, while also uncovering patterns that drive business decisions...

DescriptionOne of the worldwide leading AI platforms has chosen TP Spain to manage its new Sales Growth program, launching in August 2026. This is a strategic win for TP: a global brand, a scalable sales-driven model, and strong long-term growth potential.This initiative positions TP Barcelona as a leading EMEA hub for sales-focused programs and offers...

Company DescriptionWork smart, have fun and make an impact!Our purpose is to guide all companies toward a sustainable world. EcoVadis is the leading provider of business sustainability ratings. Our solutions are backed by an international team of experts and powerful technology. We analyze data and build sustainability scorecards that give companies...

SW engineer for PSP solutionsDescription -Job SummaryThis role is responsible for designing, developing, testing, and maintaining cloud software applications across frontend and backend domains, with a strong focus on integration-heavy PSP Solutions environments. The role works across multiple platform layers, combining product delivery, technical problem...

About the RoleWe’re looking for a Staff Data Scientist to shape the future of our marketplace through advanced analytics, experimentation, and machine learning. You’ll define the technical direction of data science initiatives, influence product strategy, and mentor other data scientists to elevate our analytical standards and impact.As a Senior...

Location: Spain, Experience: 8+ Years building and deploying machine learning models and llms into high-scale customer experiences Stack: Python, PyTorch/TensorFlow, SQL, Databricks, Snowflake. Our Team At Vista Engineering, we are building an industry-leading Customer Relevance Platform to scale personalization across products, design templates, and...

We power people’s progress.At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled - and it’s creating real impact.We’ve just reached unicorn status with a $150M...

Let’s fix hospitality, for good.Hospitality runs on thin margins, and most operators are stretched trying to protect them. We built Nory to fix this problem.Our CEO, Conor, knows the pain first-hand. He founded and scaled Mad Egg in Ireland, and grew tired of stitching together so-called market-leading systems and spreadsheets just to keep the business...

Company DescriptionWork smart, have fun and make an impact!EcoVadis is the leading provider of business sustainability ratings. Our solutions are backed by an international team of experts and powerful technology. We analyze data and build sustainability scorecards that give companies actionable insights into their environmental, social and ethical risks.Why...