Marlex is a leading Spanish human resources and recruitment consultancy specializing in talent acquisition, temporary staffing, and executive search. With over 30 years of experience and a network of more than 60 offices, the company serves a wide range of industries including aerospace, engineering, healthcare, and administration, positioning itself as one of the top HR firms in the country.

Headquartered in Catalonia, Marlex has a deep-rooted presence across the Spanish territory, with significant operations in Madrid and Barcelona. For international professionals, Marlex acts as a key gateway to the Spanish job market, frequently managing recruitment processes for high-tech sectors like mobility and defense that require multilingual talent and specialized technical expertise.

Founded in 1996 in Girona, Marlex began as a local recruitment firm before expanding nationwide. It has grown into one of the largest HR consultancies in Spain, focusing on proximity to both clients and candidates.

For international professionals

Operates a network of over 60 physical offices across Spain, providing extensive local market coverage.
Specializes in high-growth sectors for international talent, including Aerospace, Engineering, and IT.
Frequently manages recruitment for roles requiring multilingual capabilities, specifically English and French.
Acts as a primary recruiter for major industrial and technology hubs in Madrid, Barcelona, and Andalusia.

Fullstack developer

Marlex Recruiting

This job was originally posted in Spanish and automatically translated to English. You'll most likely need Spanish to apply.

Job Description

Are you looking for a new job opportunity? Do you have solid experience as a Full Stack Developer specializing in React? Would you like to be part of a consolidated, innovative company with international projection within the e-commerce sector? If your answer is yes, this is your opportunity!

At Paul Marlex, we are collaborating with a major B2C e-commerce company, specializing in the online sale of recognized brands through a flash sales model, in the search for a FULL STACK DEVELOPER (REACT) to join their international technology team.

What will be your mission in the company?

● Design, develop, and maintain web applications using JavaScript, React, and PHP.

● Implement attractive, accessible, and functional user interfaces in

collaboration with the design team.

● Integrate APIs and backend services, working hand-in-hand with other developers to ensure a robust and secure data flow.

● Participate in the technical design of new functionalities, providing both frontend and backend vision.

● Identify, analyze, and resolve performance, usability, and security issues.

● Participate in the planning, estimation, and tracking of tasks within the team.

● Contribute to the continuous improvement of the codebase, architecture, and internal processes (code review, standards, best practices, documentation, etc.).

● Collaborate in test automation and the improvement of software quality.

What can we offer you?

● Stable position with a permanent contract and direct hiring by the company.

● Be part of a solid, innovative company with an international presence.

● Participation in strategic projects with a direct impact on the business.

● Hybrid work model: 2 days in the office (Wednesday and Thursday) and 3 days of remote work.

● Flexible scheduling.

● Competitive compensation package according to the experience provided.

● Continuous training and real possibilities for professional growth.

● Collaborative, dynamic, and multicultural environment.

What do we need from you?

● Minimum of 5 years of experience as a Full Stack Developer, with specialization

● Demonstrable experience in web development using JavaScript and React on the

frontend.

● Solid knowledge of HTML5, CSS3, and related technologies (responsive design, preprocessors, etc.).

● Experience in backend development with PHP and the use of frameworks such as Laravel or other equivalents.

● Knowledge of Node.js, Next.js, and Express (or other similar frameworks).

● Experience working with relational databases (MySQL, PostgreSQL) and non-relational databases (MongoDB).

● Familiarity with frontend state patterns and the use of libraries/frameworks such as Redux, MobX, or others.

● Knowledge of testing (unit, integration, and/or end-to-end).

We are looking for an analytical person, results-oriented, and with a great capacity to solve complex problems. Someone with a collaborative mindset, a passion for technology, and a desire to participate in high-impact projects within a dynamic and innovative environment.

View original advert (Spanish)

¿Estás en búsqueda de una nueva oportunidad laboral? ¿Cuentas con una sólida experiencia como Full Stack Developer con especialización en React? ¿Te gustaría formar parte de una empresa consolidada, innovadora y con proyección internacional dentro del sector e-commerce? Si tu respuesta ha sido sí, ¡esta es tu oportunidad!

Desde Paul Marlex estamos colaborando con una importante empresa B2C del sector e-commerce, especializada en la venta online de marcas reconocidas mediante un modelo de flash sales, en la búsqueda de un/a FULL STACK DEVELOPER (REACT) para incorporarse a su equipo tecnológico internacional.

¿Cuál será tu misión en la empresa?

● Diseñar, desarrollar y mantener aplicaciones web utilizando JavaScript, React y PHP.

● Implementar interfaces de usuario atractivas, accesibles y funcionales en

colaboración con el equipo de diseño.

● Integrar APIs y servicios backend, trabajando de la mano con otros desarrolladores para garantizar un flujo de datos robusto y seguro.

● Participar en el diseño técnico de nuevas funcionalidades, aportando visión tanto de frontend como de backend.

● Identificar, analizar y resolver problemas de rendimiento, usabilidad y seguridad.

● Participar en la planificación, estimación y seguimiento de tareas dentro del equipo.

● Contribuir a la mejora continua de la base de código, la arquitectura y los procesos internos (code review, estándares, buenas prácticas, documentación, etc.).

● Colaborar en la automatización de pruebas y en la mejora de la calidad del software.

¿Qué te podemos ofrecer?

● Posición estable con contratación indefinida e incorporación directa por empresa.

● Formar parte de una compañía sólida, innovadora y con presencia internacional.

● Participación en proyectos estratégicos con impacto directo en el negocio.

● Modelo de trabajo híbrido: 2 días de oficina (miércoles y jueves) y 3 de teletrabajo

● Flexibilidad horaria.

● Paquete retributivo competitivo acorde a la experiencia aportada.

● Formación continua y posibilidades reales de crecimiento profesional.

● Ambiente colaborativo, dinámico y multicultural.

¿Qué necesitamos de ti?

● Experiencia mínima de 5 años como Full Stack Developer, con especialización