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.

Para presentar una candidatura, simplemente lea la siguiente descripción del puesto y asegúrese de adjuntar los documentos pertinentes.
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 do
- Design, develop, and maintain enterprise‑grade Full Stack applications supporting a general B2B platform
- Build modern frontend applications using React and Next.js
- Develop scalable backend services and REST APIs using Node.js and/or Java Spring Boot
- Build and deploy cloud-native applications using AWS
- Collaborate with multiple engineering teams working on shared codebases




- Deliver high-quality software following clean architecture and software engineering best practices
- Optimize application performance, scalability, security, and reliability
- Implement unit, integration, UI, and automated testing strategies
- Contribute to CI/CD pipelines and modern DevOps practices
- Participate in Agile/Scrum ceremonies and cross-functional product teams
- Collaborate with architects, product managers, UX designers, QA engineers, and international stakeholders
- Contribute to technical decisions, code reviews, mentoring, and engineering best practices
- 5+ years of experience as a Full Stack Software Engineer
- Strong experience with React and/or Next.js
- Experience developing backend applications using Node.js and/or Java Spring Boot
- Experience designing and integrating REST APIs
- Hands‑on experience building applications on AWS
- Experience working with shared repositories using GitHub
- Experience with CI/C

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