Empleos de fullstack engineer en Barcelona

Join Tether and Shape the Future of Digital FinanceAt Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. By harnessing the power of blockchain...

Affirm, Inc. is seeking a Software Engineer II, Fullstack (Repayment UX) to join a Europe-based team focused on reliable, scalable repayment experiences. The role operates from Spain with a remote-first policy, collaborating across product, design and analytics.Expect on-call rotations and opportunities to impact millions of users with high-scale financial...

Capitole is hiring a Fullstack Engineer (Frontend-Oriented) with 4+ years of experience to drive frontend components and Backstage integrations within the joint team. You will contribute to the portal's technical advancement and collaborate across ARTs and organizational units. The role emphasizes React development, REST APIs, and enterprise IT experience,...

Tether is hiring a Fullstack Engineer to help QVAC application teams build, review, test, and deliver robust software. You’ll focus on desktop and mobile apps, AI harness, and skills packages, while creating developer tools and integrating AI agents into engineering workflows. You will own parts of the tooling roadmap, work with engineers to implement...

Capitole is seeking a Senior Fullstack Engineer with a strong frontend mindset to join an international project. You will contribute to the evolution of the central platform used by developers across the organization, focusing on modern frontend experiences, Backstage integrations, and cloud-native solutions. You will develop React-based UI components, build...

Moonfire is a small, fully remote team of senior engineers building Lingo.dev tools used by developers worldwide. You will design, develop, and scale web applications, open source tooling, and robust APIs with a focus on performance and UX. We value CS craft, remote collaboration, and ownership of features end-to-end. You’ll work across frontend, backend,...

About ABCDx ABCDx is a Swiss-Spanish MedTech company developing innovative blood-based point-of-care diagnostic solutions combining biomarkers, lateral-flow technologies, smartphone image analysis and clinical algorithms. Our focus is on acute neurological and cardiovascular conditions, with clinical development activities across Europe. About ABCDx ABCDx is...

Overview In this role you will lead backend architecture and develop scalable Python services with FastAPI while contributing to frontend with ReactJS. You will drive technical decisions, promote best practices, and collaborate with product and engineering teams to deliver robust, high-performance solutions for thousands of concurrent users. The role...

Tether is seeking a Fullstack Engineer to help QVAC application teams develop, review, test, and deliver reliable software across desktop and mobile platforms. You will shape tooling, implement AI agents, and build developer tools within a global remote team, driving automation and quality. You will work with engineers to identify improvements, own them from...

Social You busca un Senior Fullstack Engineer / Tech Lead para liderar la arquitectura y la ejecución del roadmap en una plataforma IoT. Trabajarás en un entorno de microservicios, con despliegues multi‑país y una plataforma que requerirá alta disponibilidad. Buscará 5 años de desarrollo y 2 de liderazgo, experiencia en Docker/Kubernetes, API Gateway...

Alan is hiring across Europe, including Spain, for a full-time engineering role. The team builds infrastructure, interfaces, and applications to deliver high-quality service to members and health professionals. The role emphasizes ownership, fast delivery, and privacy-by-design. We value developers who focus on experience, collaboration, and AI-augmented...

Software Engineer II, Fullstack (Repayment UX)Remote SpainAt affirm, we exist for the moments that matter-giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most.The Repayment UX Engineering team is growing, and we're looking for a Full-Stack Software Engineer. We're a full-stack...

This is an in-office role based in Barcelona, ES, with a requirement to work a minimum of three days per week on-site. Remote or travel flexibility is not available. Are you ready to build AI-native software that accelerates clinical trials and improves patient outcomes? Do you thrive in a full-stack environment where AI is a core tool, not an add-on? Join...

Our mission is to connect and optimize the world’s commerce. That means the whole world. So we’re determined to nurture our culture of meritocracy where everyone can thrive, no matter what we look like, where we’re from, how we grew up, whom we love, the nature of our faith, or how our bodies or minds work. We’re committed to achieving equity in...

Our partner is looking for a Senior Software Engineer – C# / .NET based in Spain. Join a globally distributed software organization developing innovative solutions that help consumer brands optimize operations, recover revenue, and grow across major retail marketplaces. As a Senior Software Engineer, you will take end-to-end ownership of product...

At Capitole, we keep growing and we want to do it with you! We are looking for a Senior Fullstack Engineer with a strong frontend mindset to join an international project. You will contribute to the evolution of the central platform used by developers across the organization, working on modern frontend experiences, Backstage integrations, and cloud-native...

Can you imagine leading the technical evolution of digital software solutions in the robotics and industrial sector? Join our expert team to work on a Robotics and Industrial Automation project, contributing to the evolution of interconnected digital software solutions. You will apply your knowledge of Node.js and React to define technology strategies,...

We Are Wizeline, a global AI-native technology solutions provider, develops cutting-edge, We Are Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of...

About the Project & Team It evolved into a developer-loved toolkit with hundreds of active users, 7,000 weekly CLI runs, 5,000 GitHub stars, and over 100 million translated words. We've graduated from the world's best tech accelerator (Y Combinator) and raised venture funding to continue building developer tools that must exist but don't yet. We're a...

Senior Fullstack Engineer / Tech Lead – Plataforma IoTReferencia: #32026Localización: Barcelona Te motiva liderar la evolución técnica de una plataforma propia que está a punto de desplegarse en varios países? Quieres tener autonomía real, impacto directo y la posibilidad de marcar estándares tecnológicos desde cero? Esta oportunidad es para...