Senior Full-Stack Developer

hace 7 días

Barcelona, Barcelona, España All-In Factory A tiempo completo 60.000 € - 90.000 € al año

Job description

We are an international creative and tech agency based in Barcelona, specialised in web and app development, UX/UI design, and digital strategy.

We are looking for a
Senior Full-Stack Developer
to take a key role in our development team — setting up the technical foundations, leading the build of new projects, and coding directly on web and app projects.

You will work on diverse and challenging projects for international clients across multiple sectors, from startups to established brands.

Responsibilities

  • Develop and maintain web and mobile applications with clean, scalable, and efficient code.
  • Set up and structure the agency's development environment (architecture, workflows, deployment).
  • Implement new features, integrations, and custom functionalities.
  • Collaborate closely with designers and project managers to ensure quality and performance.
  • Occasionally work on CMS projects (mainly WordPress) — custom design and optimisations.
  • Identify and test new tools, frameworks, and technologies to improve processes.
  • Ensure performance, security, and scalability across all builds.

Requirements

  • 7+ years of experience as a full-stack developer.
  • Strong skills in
    JavaScript, React, , and PHP
    .
  • Experience with
    web app
    development;
    mobile app
    experience is a strong plus.
  • Familiarity with
    WordPress
    (custom themes/plugins) or other CMS platforms is a plus.
  • Solid understanding of databases (MySQL, MongoDB) and API architecture.
  • Experience with
    Docker, Git, and CI/CD
    pipelines.
  • Curious, self-driven, and comfortable testing new technologies.
  • Fluent in English; Spanish or French are a plus.

What we offer

  • 80% remote work, with 1–2 office days per week in Barcelona.
  • Diverse and international projects across different industries.
  • Flat, creative structure with autonomy and direct impact.
  • Flexible and open-minded environment that values initiative and responsibility.
  • Opportunity to shape the agency's technical direction while staying hands-on with code.

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