We are looking for a Senior AI Full Stack Developer to join a global team responsible for the end-to-end ownership of a worldwide B2B platform.In this role, you will design, build, and maintain high-performance, scalable, and secure web applications that support business-critical digital commerce solutions. You will collaborate with international engineering teams, contributing to a modern cloud-native architecture while ensuring excellent user experience, reliability, compliance, and operational efficiency.What you'll doDesign, develop, and maintain enterprise‑grade Full Stack applications supporting a integral B2B platformBuild modern frontend applications using React and Next.jsDevelop scalable backend services and REST APIs using Node.js and/or Java Spring BootBuild and deploy cloud-native applications using AWSCollaborate with multiple engineering teams working on shared codebasesDeliver high-quality software following clean architecture and software engineering best practicesOptimize application performance, scalability, security, and reliabilityImplement unit, integration, UI,



and automated testing strategiesContribute to CI/CD pipelines and modern DevOps practicesParticipate in Agile/Scrum ceremonies and cross-functional product teamsCollaborate with architects, product managers, UX designers, QA engineers, and international stakeholdersContribute to technical decisions, code reviews, mentoring, and engineering best practices5+ years of experience as a Full Stack Software EngineerStrong experience with React and/or Next.jsExperience developing backend applications using Node.js and/or Java Spring BootExperience designing and integrating REST APIsHands‑on experience building applications on AWSExperience working with shared repositories using GitHubExperience with CI/CD pipelinesExperience implementing unit, integration, UI, and automated testingExperience working in Agile/Scrum environmentsStrong software engineering fundamentals, problem‑solving skills, and c

📌 Senior AI Full Stack Developer (Barcelona)
🏢 Capitole
📍 Barcelona