42 Ofertas de Desarrolladores Front-end en Barcelona

Founded in 2012 by cyber-security experts Eduardo Cruz, Josep Gaspar, and Josh Gabel, Qustodio is the global leader in online safety and digital wellbeing for families. In 2022, Qustodio became part of the Qoria group , protecting every child's digital journey through a world-class collaboration between schools, parents, and educators in cyber safety. Qoria's mission is to support families and schools to live and navigate smarter in an increasingly connected world. Together, we help millions of families and educators across the globe protect children from online harm, while promoting healthy digital habits and awareness.

We are looking for a Frontend Engineer to help us bring our product to the next level, with strong technical and communication skills.

The candidate would join our international Engineering Team and work together with engineers, UX experts, and other stakeholders. They should be a team player with a passion for technology.

Above all, we are looking for a talented professional open for a great challenge, willing to learn new technologies, and ready to do whatever it takes to keep our customers and the business happy.

What you will do:

• Build and evolve shared frontend infrastructure, tools, and components that enable product teams to move faster and deliver high-quality user experiences.
• Collaborate closely with frontend engineers, designers, and stakeholders to identify common needs and provide scalable, reusable solutions.
• Act as a technical partner to other teams by advising on best practices, architecture decisions, and performance optimizations.
• Drive experimentation and continuous improvement through internal tools, automation, and frameworks.
• Be creative and bold to experiment with new solutions.

What you bring to the table:

• You aspire to create software that wows people.
• You build solutions that aim for the best product usability.
• You are very experienced with JavaScript frameworks (we work with React).
• You're self-sufficient with JavaScript toolchains.
• Testing is a first-class citizen for you.
• You’re experienced in software versioning control with Git.
• Fluency in English (we work in English).

Bonus points for:

• You've grown fond of TypeScript's safety.
• You have worked before with a server-side language like Python or PHP.
• You are familiar with hybrid mobile apps.
• You enjoy improving the development experience for you and your team.
• You have experience in an agile workflow, like Kanban.

Soft skills that we like to hire:

• Ability to collaborate with cross-functional teams,
• Communication with non-technical people.
• Innovative thinking, result oriented, and problem-solving skills.
• Proactive, collaborative, and autonomous mindset.

What we offer you:

• Exciting challenges in a fast-growing tech company where you can grow your skills and career.
• A strong team culture—we value collaboration, learning, and fun.
• A diverse workplace—our team includes professionals from 18+ nationalities.
• Flexible work environment—including remote work options.
• Competitive salary and private health insurance.
• Professional development opportunities—in-house training and team-building events.
• A great office in Barcelona—modern, fully equipped, and in the city center.
• Perks and benefits:
• Daily fruit and beverages
• Daily lunch catering
• 23 days of annual leave plus a half-day off on your birthday
• Flexible benefits package

At this stage we are only accepting application from those with full working rights in Spain.

Shortlisting will commence immediately.

About the Team

Our competitive intelligence service is an internal, high-profile, bespoke data & AI service built in collaboration with our in-house competitive intelligence professionals. It is transforming how competitive intelligence is created, disseminated and consumed across AstraZeneca into a rich, digital, interconnected, on-demand experience.

Through the use of data pipelines, knowledge graph, interactive visualisations and machine learning, it seeks to integrate key external and internal data sources, generate complex interactive information, and accelerate our teams of competitive intelligence professionals to provide a clear advantage for AstraZeneca. We value creating an excellent customer experience, reliable data, and effective engineering practises.

The Role

We are looking for a skilled front-end developer to join our team in building an innovative application that will revolutionize healthcare. The ideal candidate will have a strong proficiency in JavaScript and experience with modern front-end frameworks such as React. Responsibilities will include collaborating with the design and back-end teams to implement user-friendly interfaces, optimizing application performance, and ensuring cross-browser compatibility. The successful candidate will have a passion for creating elegant and intuitive user experiences, a strong attention to detail, and a collaborative mindset to work effectively within a diverse team. Join us in making a meaningful impact on global healthcare delivery through cutting-edge technology.

Accountabilities

• Develop new user-facing features: Translate designs and wireframes into high-quality, reusable React components.

• Ensure responsiveness and performance: Optimize components for a variety of devices and browsers. Write clean, maintainable code.

• Implement state management: Utilize libraries like Redux or Context API to manage application state in complex projects.

• Collaborate with team members: Work effectively with designers, back-end developers, and other stakeholders.

• TypeScript: Familiarity with TypeScript for improved type safety and maintainability in large projects.

• Write unit and integration tests: Ensure code quality and maintainability using frameworks like Jest and React Testing Library.

• Stay up-to-date: Continuously learn and adapt to the evolving React ecosystem.

Essential Skills/Experience

- In-depth knowledge of React.Js: Proficiency with core React concepts, components, state management, props, JSX syntax, and modern JavaScript features (ES6+).
- Experience with Design Systems: Strong experience working with design systems, Figma for design collaboration, and building/utilizing Storybook components while closely partnering with UX designers.
- Modern JavaScript Features: Familiarity with features like arrow functions, classes, modules, and promises is a plus. These features enhance code readability and maintainability.
- Experience with front-end build tools: Familiarity with Vite, Babel, and npm (or yarn) for development workflows, bundling, and dependency management.
- Version control systems: Familiarity with Git for version control and collaboration, including experience with Git actions for continuous integration and deployment.
- RESTful APIs: Ability to fetch data from and interact with RESTful APIs.
- Testing Frameworks: The candidate must be proficient in using tools like SonarQube and GitHub Copilot, integrating tests within CI/CD pipelines, and utilizing frameworks such as Vitest, Pytest, and Playwright. Developers are expected to take full responsibility and accountability for the quality and thorough testing of their code before it is checked in and integrated with the rest of the stack.
- Code Quality Tools: Familiarity with SonarQube for continuous inspection of code quality and security vulnerabilities.

When we put unexpected teams in the same room, we unleash bold thinking with the power to inspire life-changing medicines. In-person working gives us the platform we need to connect, work at pace and challenge perceptions. That's why we work, on average, a minimum of three days per week from the office. But that doesn't mean we're not flexible. We balance the expectation of being in the office while respecting individual flexibility. Join us in our unique and ambitious world.

At AstraZeneca, we connect across the business to drive disruptive transformation through data-led innovations. Our work empowers efficient processes and quality decision-making, impacting patient outcomes globally. Collaborate with leading experts in specialist communities to expand your knowledge and contribute to novel solutions. Here, your contributions are recognized from the top down, providing endless development opportunities.

Ready to make an impact? Apply now to join our team!

Date Posted

Closing Date

AstraZeneca embraces diversity and equality of opportunity. We are committed to building an inclusive and diverse team representing all backgrounds, with as wide a range of perspectives as possible, and harnessing industry-leading skills. We believe that the more inclusive we are, the better our work will be. We welcome and consider applications to join our team from all qualified candidates, regardless of their characteristics. We comply with all applicable laws and regulations on non-discrimination in employment (and recruitment), as well as work authorization and employment eligibility verification requirements.

Founded in 2012 by cyber-security experts Eduardo Cruz, Josep Gaspar, and Josh Gabel, Qustodio is the global leader in online safety and digital wellbeing for families. In 2022, Qustodio became part of the Qoria group , protecting every child's digital journey through a world-class collaboration between schools, parents, and educators in cyber safety. Qoria's mission is to support families and schools to live and navigate smarter in an increasingly connected world. Together, we help millions of families and educators across the globe protect children from online harm, while promoting healthy digital habits and awareness.

We are looking for a Frontend Engineer to help us bring our product to the next level, with strong technical and communication skills.

The candidate would join our international Engineering Team and work together with engineers, UX experts, and other stakeholders. They should be a team player with a passion for technology.

Above all, we are looking for a talented professional open for a great challenge, willing to learn new technologies, and ready to do whatever it takes to keep our customers and the business happy.

What you will do:

• Build and evolve shared frontend infrastructure, tools, and components that enable product teams to move faster and deliver high-quality user experiences.
• Collaborate closely with frontend engineers, designers, and stakeholders to identify common needs and provide scalable, reusable solutions.
• Act as a technical partner to other teams by advising on best practices, architecture decisions, and performance optimizations.
• Drive experimentation and continuous improvement through internal tools, automation, and frameworks.
• Be creative and bold to experiment with new solutions.

What you bring to the table:

• You aspire to create software that wows people.
• You build solutions that aim for the best product usability.
• You are very experienced with JavaScript frameworks (we work with React).
• You're self-sufficient with JavaScript toolchains.
• Testing is a first-class citizen for you.
• You’re experienced in software versioning control with Git.
• Fluency in English (we work in English).

Bonus points for:

• You've grown fond of TypeScript's safety.
• You have worked before with a server-side language like Python or PHP.
• You are familiar with hybrid mobile apps.
• You enjoy improving the development experience for you and your team.
• You have experience in an agile workflow, like Kanban.

Soft skills that we like to hire:

• Ability to collaborate with cross-functional teams,
• Communication with non-technical people.
• Innovative thinking, result oriented, and problem-solving skills.
• Proactive, collaborative, and autonomous mindset.

What we offer you:

• Exciting challenges in a fast-growing tech company where you can grow your skills and career.
• A strong team culture—we value collaboration, learning, and fun.
• A diverse workplace—our team includes professionals from 18+ nationalities.
• Flexible work environment—including remote work options.
• Competitive salary and private health insurance.
• Professional development opportunities—in-house training and team-building events.
• A great office in Barcelona—modern, fully equipped, and in the city center.
• Perks and benefits:
• Daily fruit and beverages
• Daily lunch catering
• 23 days of annual leave plus a half-day off on your birthday
• Flexible benefits package

At this stage we are only accepting application from those with full working rights in Spain.

Shortlisting will commence immediately.

Senior Front-end Engineer

Main responsibilities:

• Develop and sustain the FE codebase: Creating best-in-class user flows and integrating with a headless CMS, feature-flags and central API.
• Develop Reusable Components: Ensure separation of concerns by creating standardized, modular components.
• Implement Robust Testing: Write comprehensive unit and end-to-end tests to guarantee quality and stability.
• Collaborate Cross-Functionally: Work closely with UX designers, backend teams, and other digital organizations to deliver cohesive eCommerce solutions.
• Deploy and Enhance eCommerce Solutions: Build and deploy new capabilities and market-specific customizations while continuously improving existing products.
• Contribute to Product Strategy: Participate in defining new product requirements alongside Developers, Product Owners, and Solution Architects in a digital environment.

Key Skills:

• Proficiency in building web applications with React, Next.Js, and JavaScript/TypeScript.
• Expertise in responsive design and modular architecture.
• Familiarity with CI/CD pipelines and automated testing frameworks.
• Web development principles, lifecycle processes, and modern web frameworks.
• It would be nice to have experience with Angular, and the Spartacus Composable Storefront Framework is useful, even though it is not the primary focus.
• Experience with SAP e-commerce, SAP Hybris, or SAP Commerce Cloud, alongside integration with other systems, would be beneficial.

Senior Mobile Developer

En Algoritcom Games buscamos un Senior Developer especializado en React Native (Expo) , con más de 5 años de experiencia , para unirse a nuestro equipo y ayudarnos a crear aplicaciones móviles innovadoras, fluidas y de alto rendimiento.

¿Qué harás?

• Desarrollar y mantener aplicaciones móviles multiplataforma (iOS y Android) con React Native (Expo) .
• Optimizar el rendimiento y la usabilidad, asegurando una experiencia de usuario de primer nivel.
• Integrar APIs, servicios en tiempo real y notificaciones push .
• Identificar y resolver retos técnicos complejos.
• Aportar ideas innovadoras para nuevas funcionalidades y mejoras de producto.

¿Qué buscamos?

• Experiencia sólida en React Native y Expo .
• Dominio de JavaScript/TypeScript y buenas prácticas de desarrollo.
• Experiencia con APIs REST y bases de datos móviles (SQLite, Realm, Firebase, etc.).
• Publicación y mantenimiento de apps en App Store y Google Play .
• Conocimientos en control de versiones (Git ).
• Experiencia con Three.js y React Three Fiber .
• Capacidad para trabajar en equipo y de forma autónoma.
• Mentalidad creativa y resolutiva.

Se valorará muy positivamente.

• Experiencia en 3D y gráficos interactivos .
• Conocimientos en cloud (AWS, Firebase, Supabase).
• DevOps móvil (CI/CD con EAS, Fastlane).
• Arquitecturas escalables (Clean Architecture, SOLID).
• Integraciones en tiempo real con WebSockets .
• Animaciones avanzadas (Reanimated, Lottie).
• GLSL y shaders para gráficos avanzados.

¿Qué ofrecemos?

• Entorno dinámico, colaborativo e innovador.
• Oportunidades reales de crecimiento profesional y personal.
• Salario competitivo acorde a la experiencia.
• Modelo híbrido : flexibilidad entre remoto y presencial.

Senior Mobile Developer

En Algoritcom Games buscamos un Senior Developer especializado en React Native (Expo) , con más de 5 años de experiencia , para unirse a nuestro equipo y ayudarnos a crear aplicaciones móviles innovadoras, fluidas y de alto rendimiento.

¿Qué harás?

• Desarrollar y mantener aplicaciones móviles multiplataforma (iOS y Android) con React Native (Expo) .
• Optimizar el rendimiento y la usabilidad, asegurando una experiencia de usuario de primer nivel.
• Integrar APIs, servicios en tiempo real y notificaciones push .
• Identificar y resolver retos técnicos complejos.
• Aportar ideas innovadoras para nuevas funcionalidades y mejoras de producto.

¿Qué buscamos?

• Experiencia sólida en React Native y Expo .
• Dominio de JavaScript/TypeScript y buenas prácticas de desarrollo.
• Experiencia con APIs REST y bases de datos móviles (SQLite, Realm, Firebase, etc.).
• Publicación y mantenimiento de apps en App Store y Google Play .
• Conocimientos en control de versiones ( Git ).
• Experiencia con Three.js y React Three Fiber .
• Capacidad para trabajar en equipo y de forma autónoma.
• Mentalidad creativa y resolutiva.

Se valorará muy positivamente.

• Experiencia en 3D y gráficos interactivos .
• Conocimientos en cloud (AWS, Firebase, Supabase).
• DevOps móvil (CI/CD con EAS, Fastlane).
• Arquitecturas escalables (Clean Architecture, SOLID).
• Integraciones en tiempo real con WebSockets .
• Animaciones avanzadas (Reanimated, Lottie).
• GLSL y shaders para gráficos avanzados.

¿Qué ofrecemos?

• Entorno dinámico, colaborativo e innovador.
• Oportunidades reales de crecimiento profesional y personal.
• Salario competitivo acorde a la experiencia.
• Modelo híbrido : flexibilidad entre remoto y presencial.

Precisamos un Programador Frontend con Vuejs para su incorporación en uno de nuestros clientes con sede en Barcelona.

Se requiere:

- Grado Superior o similar en desarrollo de aplicaciones multiplataforma.

- Experiencia en el desarrollo del Frontend

- Flexibilidad para trabajar de forma presencial

- Experiencia con: Vuejs, Javascript, Html5, Applet, CSS

- Experiencia con CMS: Drupal, Wordpress etc

- Muy valorable otros lenguajes. como PHP

Funciones:

- Desarrollo de diferentes aplicaciones a medida para las necesidades del cliente.

- Desarrollo con lenguajes de front como : Vuejs, Javascript,htmal, Css, Php etc

Se ofrece:

- Contrato Indefinido

Role Overview

We are seeking a highly skilled Senior Front-end Engineer to join our global eCommerce modernization initiative for a leading pharmaceutical client. The ideal candidate will have extensive experience with React, Next.js, and modern JavaScript frameworks , contributing to the design, development, and deployment of scalable, high-performance front-end applications.

Key Responsibilities

• Develop and maintain the front-end codebase, ensuring exceptional user experience and seamless integration with headless CMS, feature flags, and central APIs.
• Create reusable, modular, and scalable components following best practices in design and architecture.
• Implement and maintain unit and end-to-end testing frameworks to ensure product stability and code quality.
• Collaborate closely with UX/UI designers, backend developers, and product teams to deliver cohesive, user-centric eCommerce solutions.
• Develop and enhance eCommerce features and market-specific customizations , ensuring continuous improvement across digital platforms.
• Actively contribute to technical discussions and product strategy , working with Developers, Product Owners, and Solution Architects to define and refine new features.

Key Skills & Experience

• Strong proficiency in React.js, Next.js, JavaScript, and TypeScript .
• Solid experience in responsive design, component-based development , and modular front-end architecture .
• Familiarity with CI/CD pipelines and automated testing frameworks (e.g., Jest, Cypress).
• Strong understanding of web performance optimization , accessibility, and modern development principles.
• Experience with Angular or Spartacus Composable Storefront is a plus (not mandatory).
• Prior exposure to SAP eCommerce, SAP Hybris, or SAP Commerce Cloud integrations is a strong advantage.