Full Stack Developer - AI Marketplace (IDP backstage)

Job Description

The Full Stack Developer plays a key role in building and expanding the AI Marketplace within the Internal Development Portal (IDP), powered by Backstage. This role involves close collaboration with UX designers, developers, security experts, and internal stakeholders to deliver a seamless, intuitive, and secure experience for users. It also requires applying best practices in collaborative development, agent behavior governance, and responsible AI principles.

YOUR ROLE

• Design and develop full-stack features for the AI Marketplace using React, Node.js, and Backstage plugins.
• Integrate services and APIs into the IDP portal, ensuring seamless discoverability and usability.
• Collaborate with UX designers to craft intuitive user interfaces and workflows.
• Build and maintain backend services including authentication, data storage, and service orchestration.
• Ensure code quality through testing, peer reviews, and CI/CD pipeline implementation.
• Work with internal stakeholders to gather requirements and iterate on features.

YOUR PROFILE

• Solid experience in full-stack development, with a focus on React, Node.js, and modern architectures.
• Familiarity with agile methodologies, Git version control, and collaborative development practices.
• Awareness of application security, data privacy principles, and responsible AI practices.
• Understanding of Agentic AI concepts and agent behavior governance.
• Excellent communication and teamwork skills across cross-functional teams.
• Proactive, solution-oriented, and able to manage multiple tasks simultaneously.
• Experience with Backstage or similar IDP platforms is a plus.

WHAT YOU'LL LOVE ABOUT WORKING HERE

• Supportive environment for personal growth, including help with certifications and access to international know-how and career opportunities.
• Flexible work culture based on trust — relaxed hours and home office options, with a focus on delivering quality results.
• Commitment to social impact, featuring volunteering initiatives like Impact Together Week involving 7,000+ participants.
• A wide range of employee perks: meal vouchers, Multisport card, birthday day off, free office gym access, and monthly company breakfasts.

Capgemini is an equal opportunity employer. We promote equality and dignity in all aspects of recruitment and employment, and all offers of employment and promotions are made on the basis of performance, competence and ability.

ABOUT CAPGEMINI

Capgemini is a global leader in partnering with companies to transform and manage their business by harnessing the power of technology. The Group is guided everyday by its purpose of unleashing human energy through technology for an inclusive and sustainable future. It is a responsible and diverse organization of over 360,000 team members in more than 50 countries. With its strong 55-year heritage and deep industry expertise, Capgemini is trusted by its clients to address the entire breadth of their business needs, from strategy and design to operations, fuelled by the fast evolving and innovative world of cloud, data, Al, connectivity, software, digital engineering and platforms. The Group reported in 2022 global revenues of €22 billion.