We are looking for a
Senior AI Full Stack Developer
to join a integral 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 do

? Design, develop, and maintain enterprise-grade Full Stack applications supporting a global 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

? Must Have

? 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

? Strong knowledge of
JavaScript
,
TypeScript
, or
Java

? Experience designing and integrating
REST APIs

? Hands-on experience building applications on
AWS

? Experience working with shared repositories using
GitHub

? Experience with CI/CD pipelines

? Experience implementing unit,

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