libraries

Wizeline in Spain is seeking a Senior Product Designer to shape scalable design systems. You will build new components, refine existing ones, and maintain our Figma libraries so other designers can work efficiently.You will create clear documentation, support design tokens and theming for multi-brand applications, and partner with engineering to ensure...

At NeuralTrust, we're looking for a Frontend Engineer to help us scale our platform and take our technology to the next level. If you're passionate about building robust backend systems and working at the intersection of AI and security — join us!About NeuralTrustWe're a Barcelona-based startup building the future of AI and Agents security. Our SaaS...

Staff Frontend EngineerLocation: United Kingdom | London Shape frontend architecture and platform direction across React, React Native and our Nx monorepo, making product teams faster and raising quality at scale. Our mission is to enable everyone to build wealth We reinvent how trading and investing work by creating exceptional products people love. That...

Jobtailor in Madrid is seeking a senior data architect/engineer to design agentic workflows for tax processes, build AI‑ready data platforms, and ensure governance and security across client environments.The role requires 6+ years across data architecture, data engineering and analytics, hands‑on AI/ML in production, and proficiency with Python and ML...

A leading multinational technology firm is seeking a Senior AI Engineer to join their team in Barcelona, Spain. This role focuses on designing and deploying AI-driven solutions, requiring strong foundations in machine learning and cloud computing. Ideal candidates have substantial experience in building generative AI solutions and are proficient in Python...

Ebury is seeking a Data Scientist - Growth in Madrid to drive advanced analytics for sales enablement and growth modelling. You will develop models for Lead Scoring, conversion, profitability, and integrate insights into sales platforms. You will collaborate with Data Engineers and Sales Analysts, apply Python and ML libraries, and communicate findings to...

Dow Jones is seeking an AI Solutions Specialist to join the Automation & Reporting team in Barcelona. You will design, build, and maintain AI solutions to optimize workflows, leveraging ML and NLP techniques and integrating with cloud services. You will work across data science, data engineering and product teams, deploying models, automating processes, and...

A deep-tech company in Spain is seeking a Cryptographic System Engineer to integrate and deploy quantum entropy solutions in cryptographic infrastructures. The ideal candidate should have 3-4+ years of experience in software development, strong skills in C/C++ and Python, and hands-on experience with cryptographic libraries like OpenSSL. Excellent...

Celonis in Madrid is seeking a Senior Frontend Software Engineer to design and build sophisticated user interfaces with Angular and TypeScript. You will own client-side architecture, contribute to component libraries, and drive frontend performance. Join a collaborative team working with product managers, UX/UI designers, and backend engineers to translate...

commercetools is seeking a Senior Search Engineer to build a modern, integrated search experience for customers. You will provide a search API for product discovery and foundational search capabilities across domains. You will design and implement search functionalities in a PaaS ecommerce Scala backend, learn Scala, and develop libraries based on...

Proton is seeking an engineer to design, build, and evolve Windows applications. You will own the full lifecycle from feature design to deployment, monitoring, and incident response. The role emphasizes collaboration with product teams to deliver secure, privacy-preserving software. Experience with .NET, WinUI (C#/XAML), and Rust core libraries is ideal....

Visium in Barcelona is looking for a Staff Machine Learning Engineer to lead high-impact projects and mentor teams. This role involves guiding a technical team, contributing to ML methodologies, and translating client needs into technical solutions. Ideal candidates have 6-8 years of experience in machine learning, proficiency in Python, and expertise in ML...

Prima in Madrid is seeking a Software Engineer - Machine Learning to join their Engineering team. In this role, you will leverage machine learning and data analytics to identify risks in the claims management platform and contribute to the company’s growth.The ideal candidate has a strong Python background, analytical skills, and experience in machine...

Jobtailor is seeking a technical support specialist to help merchants implement Checkout.com payment processing, handle configuration, debugging, testing, go-live and post-live support. You will coordinate with Product, Sales and Account teams to resolve integration issues, maintain libraries and plugins, and ensure strong customer satisfaction across...

bsport is hiring for an OpsEng engineer within the Platform Organization. You will own architecture and delivery of client onboarding and data migrations, and help scale deployments for our branded mobile apps. You’ll design internal tooling and libraries used across engineering, and drive decisions with a focus on scalability and developer experience. We...

Prima in Madrid is seeking a Software Engineer - Machine Learning to join their Engineering team. In this role, you will leverage machine learning and data analytics to identify risks in the claims management platform and contribute to the company’s growth. The ideal candidate has a strong Python background, analytical skills, and experience in machine...

Syngenta is seeking an AI Engineer — Python to enhance the Python layer of our internal developer platform: templates, shared libraries, runtime standards and quality tooling. This is an opportunity to work at the intersection of advanced technology and agricultural R&D, partnering with engineers, product leaders and scientific stakeholders on capabilities...

A leading fintech company based in Spain is looking for an AI Research Engineer to innovate in fine-tuning methodologies for advanced AI models. You will drive improvements in model performance and efficiency, working with a diverse team remotely. Candidates should have deep expertise in large language models and proficiency with PyTorch and Hugging Face...

LCI Humans seeks a Dental Technician fluent in English to join the international training and technical support team in Barcelona. You will manage CAD/CAM design libraries and support distributors and clients in daily practice. The role combines on-site technical support, training program development, and creation of instructional materials, with travel...

Our mission is to enable everyone to build wealth. We reinvent how trading and investing work by creating exceptional products people love. That takes high standards, high velocity and engineers who own what they ship. Today, we serve over 6 million clients, with more than €38 billion in assets under management. At that scale, frontend architecture,...