FullStack Engineer

October 20, 2026

Hybrid

Senior

Barcelona, Spain

Description

A global AI-native technology solutions provider is hiring a FullStack Engineer for a hybrid role in Barcelona. The position centers on React frontend work across the full lifecycle — technical design, implementation, testing and deployment — delivered together with backend engineers and designers. Candidates bring 5+ years of building scalable web applications, expert React knowledge, GraphQL APIs on Node.js, plus hands-on AWS, PostgreSQL and CI/CD experience.

Responsibilities

Develop, test, and maintain high-quality features and UI components using React
Write clean, maintainable, and well-tested frontend code
Collaborate with the Lead Frontend Engineer, backend engineers, and designers to deliver end-to-end solutions
Participate in code reviews, advocating for frontend best practices
Contribute across the full frontend lifecycle: technical design, implementation, testing, and deployment

Requirements

Expert ReactJS knowledge, including hooks and new React 18 features
Extensive experience developing GraphQL APIs using Node.js, experience with NestJS a plus
Hands-on experience with cloud based technologies such as AWS (S3, EC2, RDS, API Gateway, CloudFront Lambda)
In-depth knowledge of database technologies with hands-on PostgreSQL experience
Real-world experience using CI/CD, such as GitHub Actions or Jenkins
5+ years of experience architecting and building scalable web applications
Experience building and maintaining component libraries and design systems
Familiarity with Storybook for component documentation and UI development
Understanding or experience with microfrontend architectures
Leverage one or more AI tools to optimize and augment day-to-day work, including drafting, analysis, research, or process automation
Experience working in the media & publishing industry is a plus