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.
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
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
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
Hands-on experience building applications on AWS
Experience working with shared repositories using GitHub
Experience implementing unit, integration, UI, and automated testing
Experience working in Agile/Scrum environments
Strong software engineering fundamentals, problem-solving skills, and collaborative mindset
Fluent English (mandatory)
Experience integrating LLMs , Generative AI , RAG , or Agentic AI into web applications
Experience with data pipelines and AI-enabled backend services
Hybrid model — 3 days onsite in Barcelona
International environment with global engineering teams
Opportunity to work on a global B2B platform used worldwide
Work on enterprise-scale digital commerce solutions with modern technologies
Build cloud-native applications on AWS
Opportunity to contribute to AI-enabled software initiatives
€1,200 annual training budget
Private health insurance
Flexible working hours
Information Security Notice
The employee will have access to confidential information related to Capitole and the assigned project.
or continue with email
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.
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
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
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
Hands-on experience building applications on AWS
Experience working with shared repositories using GitHub
Experience implementing unit, integration, UI, and automated testing
Experience working in Agile/Scrum environments
Strong software engineering fundamentals, problem-solving skills, and collaborative mindset
Fluent English (mandatory)
Experience integrating LLMs , Generative AI , RAG , or Agentic AI into web applications
Experience with data pipelines and AI-enabled backend services
Hybrid model — 3 days onsite in Barcelona
International environment with global engineering teams
Opportunity to work on a global B2B platform used worldwide
Work on enterprise-scale digital commerce solutions with modern technologies
Build cloud-native applications on AWS
Opportunity to contribute to AI-enabled software initiatives
€1,200 annual training budget
Private health insurance
Flexible working hours
Information Security Notice
The employee will have access to confidential information related to Capitole and the assigned project.
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