11.992 Ofertas de Full Stack Developer en España

Full Stack Developer | AI Start-up | Spain

An unbelievable opportunity has opened for you to join a ground-breaking AI start-up in Spain as a founding developer. Backed by fresh Series A funding and founded by ex-directors of one of the world’s most prominent healthcare organizations, the team is building an AI platform ahead of its time.

You are a full stack engineer with a front-end bias, strong in TypeScript and React , and complemented by back-end skills in Node.js, Python, or FastAPI . You thrive on designing and deploying applications in cloud-based environments at speed and with precision, leveraging CI/CD pipelines to deliver high-quality outcomes. You also bring experience with PostgreSQL .

It’s a bonus, though not essential, if you’ve worked in a fast-paced start-up, have knowledge of Office.js , or bring an eye for UI/UX design .

You have an understanding of or passion for AI Architecture. You have excellent communication skills and the intellectual curiosity to go beyond coding, challenging assumptions, questioning the why, and shaping the what. As part of the founding engineering team, you will help shape both the product and the company’s future.

Why this role stands out

• Be part of a founding team in a high-growth AI start-up

• Build with bleeding-edge technology at a pivotal time in the industry

• Play a central role in solving key real-world challenges

• Work alongside visionary founders, staying ahead of the curve

If you back your technical skills and 'end-to-end' mindset, I want to hear from you.

Hybrid in Barcelona with a competitive salary, this is your chance to live in the sun while building the innovations of tomorrow.

Our goal is to strengthen the brand in Spain. We are looking for an expert to work as Full Stack Developer!

What do you need to fulfill this job?

- Java Springboot 2.0

- React

- Devops

- Maven y Gradle

- CI/CD (Jekins, Sonar, Nexus.)

- GIT

- Database

- and API REST

- Good knowledge in English

What is a plus?

- PHP

- Python

- Postgresql

- Microservices

- Docker, CNF and K8S

- Bonitasoft

About HCLTech:

We are HCLTech, one of the fastest-growing large tech companies in the world and home to 225,000+ people across 60 countries, supercharging progress through industry-leading capabilities centered around Digital, Engineering and Cloud. The driving force behind that work, our people, are diverse, creative, and passionate, raising the bar for excellence on a regular basis.

We, in turn, work hard to bring out the best in them as we strive to help them find their spark and become the best version of themselves that they can be. If all this sounds like an environment you’ll thrive in, then you’re in the right place. Join us on our journey in advancing the technological world through innovation and creativity.

Why Us?

• We offer End-to-end digital transformation expertise that helps clients from strategy through execution. We work with the biggest brands, offering the opportunity to be a part of industry-leading work.
• We are invested in your growth, offering learning and career development opportunities at every level to help you find your spark.
• We offer freedom and flexibility on the job, empowering our employees to make decisions.
• We offer a virtual-first work environment, promoting a good work-life balance and real flexibility Our company is extremely diverse with representation of 165 nationalities.
• We offer the opportunity to work with colleagues across the globe.
• We are a certified great place to work and a top employer in 25 countries including Romania, offering a positive work environment that values employee recognition and respect.

If you have a valid disability certificate, Certificate of Disability in Force, please contact us.

Among HCL's principles we would like to highlight diversity and inclusion as a strength in our values and practices. To achieve all our objectives, it intends to attract, develop, and retain different profiles, assuming diversity as a key factor and differentiator of fundamental innovation in our organization. We welcome and value all people, and we are committed to the inclusion and sense of belonging of each person who is part of HCL.

• HCL is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws, regulations, and ordinances.

Full Stack Developer | Freelance | Remote | Catalonia

I am currently working with a respected digital marketing agency who are looking to bring in an experienced Full Stack Developer to lead the department on a freelance basis to help improve their processes and deliver future projects.

Role Details:

Job title: Full Stack Developer.

Working Model: Remote.

Day Rate: D.O.E.

Contract Length: 6 Month contract with extension possibilities.

Key Skills

• Strong expertise in Python (non-negotiable) and Node.js (must)
• Proficiency with React for front-end development
• Experience with CI/CD pipelines and automation
• Strong background in data management (data lakes, warehouses, streaming analytics)
• Familiarity with cloud environments , ideally Google Cloud Platform (Big Data, ML fundamentals, resilient streaming systems)
• Ability to take projects end-to-end with focus on back-end development
• Solid understanding of modern software engineering practices (scalability, resiliency, clean code)

Key Responsibilities

• Deliver end-to-end development of small to medium-scale projects
• Lead the modernization of data lakes and data warehouses on Google Cloud Platform
• Build and maintain resilient streaming analytics systems
• Design, implement, and optimize back-end services and APIs (Python, Node.js)
• Develop and maintain React-based front-end components
• Implement and manage CI/CD pipelines to ensure reliable deployments
• Collaborate with stakeholders to define technical requirements and solutions
• Ensure applications are secure, scalable, and performant

Key Requirements:

• Full working proficiency in English
• Eligibility to work within the EU without sponsorship
• 4-7 years experience working with the above technologies

If this sounds interesting to you, please apply or send your CV with a contact number to

¡Ha llegado el momento de unirte al movimiento #NTTDATADigitalLover, donde la colaboración, la calidad humana, el crecimiento y la innovación están servidas! Si eres una persona apasionada de lo digital y tienes siempre la cabeza en las nubes buscando soluciones innovadoras, ¡lo que vamos a contarte puede interesarte!

En NTT DATA buscamos un perfil Fullstack Develope r con ganas de formar parte de un apasionante proyecto de transformación en el sector de la salud. Trabajaras estrechamente con otros ingenieros y dueños de producto, utilizando tecnologías frontend y backend basadas en JavaScript, typescript y java, y aplicando las practicas más modernas de CI/CD.

Como parte de tu dia a dia, te enfrentaras a retos con tecnologias de frontend basadas em Web cmponents, utilizando JavaScript vanilla y Lit elements para crear, junto a los equipos de diseño, interfaces limpias, accesibles y modernas.

En backend, serás el responsable de implementar microservicios en Java con un stack completo basado en OpenTlemetry, desplegado en kubernetes y apoyándote en tecnologías de mensajería como Kafka, bases e datos como Oracle (tanto relacional como no relacional) h sistemas de chache como redis.

Como senior Engineer, tus responsabilidades serán:

• Asegurar que las soluciones diseñadas se equilibran en cuanto a demanda y viabilidad y que cumplan con los estándares de seguridad.
• Guiar la construcción de soluciones siguiendo a las arquitecturas de referencia en el proyecto basadas en Lit Elementes y Web Components.
• Implementar microservicios utilizando Microprofile , garantizando el cumplimiento de los estándares y las directrices relacionadas con la implementación de las arquitecturas limpias.
• Promover, compartir e implementar mejores prácticas de ingeniería en el equipo.
• Identificar y resolver problemas complejos relacionados con su ámbito de soluciones.
• Trabajar en propuestas técnicas que reflejen las necesidades del servicio.
• Crear prototipos y pruebas de concepto para validar ideas.
• Mantener documentacion de calidad sobre los componentes web y microservicios desarrollados.
• Dar retroalimentación precisa y accionable al equipo, especialmente en calidad de código y consumo de APIs mediante programación por partes o code review.

Experiencia requerida:

• +2 años en sedarrollo de soluciones con JAvascript y TYpescript
• +2 años en desarrollo de arquitecturas basadas en microservicios
• Experiencia demostrable n Lit Elements
• Experiencia trabajando con arquitecturas basadas en microfrontends
• Experiencia en pruebas con open-wc/testing y web(test-runner
• Experiencia con Oracle y Kafka (u otra solución de mensajería) demostrable
• Experiencia en las mejores practicas de ingeniería de software (por ejemplo, pruebas unitarias, revisiones de código, patrones de diseño

Será un plus si:

• Has trabajado con Azure Cloud
• Soltura demostrable en el uso de Docker
• Has trabajado con React
• Has trabajado con Kubernetes
• Te desenvuelves bien con git, Confluence y Jira
• Tienes experiencia como full-stack
• Tienes experiencia con Figma o cualquier otra herramienta para desarrollar prototipos

Y ahora sí, ¿Qué te ofrecemos? Lee con detenimiento porque esto realmente merece la pena

"Great things in business are never done by one person. They're done by a team of people." (Steve Jobs).

It is an incredible time to join our team and become one of the first ‘xplorers’ that help us grow and expand Xplore Group in Spain. Xplore Group is the most successful independent JAVA and PHP solution provider in the Benelux, present in Belgium, the Netherlands, and Spain. We have offices in cities such as Hasselt, Antwerp, Eindhoven, Amsterdam and Valencia.

Our team of highly skilled ‘xplorers’ has a unique approach, combining the experience of world-leading platforms with best practices and the latest technologies, delivering the best experience to our customers.

Xplore Group consists of 45 competence centers, each with its unique focus on one of the lead technologies, like AWS, Salesforce, Sap Commerce Cloud, RPA, Kubernetes. . We have gone from 400 to 1200 employees in the last three years.

We have a clear view of the direction we want to take. We work in multidisciplinary teams, where good practices and high standards are of the highest importance. We use testing, continuous integration and delivery to reduce the time to market for our clients.

Do you want to work in an international company with a startup mentality, where you can speak openly, contribute with creative ideas, learn from experienced colleagues, help us grow and become a key member of the company?

WHAT YOU WILL BE DOING:

You will work on one of our international e-commerce projects and be part of one of our squads with team members from Spain, Belgium, and the Netherlands. You will communicate in English and memes, and use agile methodologies like Scrum and Kanban.

You will put together good javascript practices in the frontend and have basic ideas about how the backend part works and collaborate with other team members and the client to define, design and develop new functionalities.

And you will do this, by developing in React with some cloud-native development in one of the major clouds (AWS/Azure).

• The first week

You will receive and set up your MacBook PRO and equipment that will allow you to work very efficiently. Alfredo Gil, our Managing Partner and CTO, will introduce you to your colleagues. You will start your training and enjoy your first free weekly meal.

• In 30 days

You will be an active member of the squad. With your professional way of working and our help, you will be of great added value to your team By taking group decisions you will help shape our awesome culture and take it to the next level. You will experience for yourself how fun and rewarding it can be to work in an international environment.

You will discover the challenges of your new project. Don’t worry if you don't have all the technical skills yet, with the help of your teammates, you'll already be running at full capacity. You will experience that your English improves quickly by drinking Belgium beer at your first after-work event. Your team is eager to meet you!

• In three months

You will have responsibility and ownership of one of the important parts of the e-commerce project. The client will mention the good job that you are doing.

• In six months

You will be at maximum performance! Every day thousands of clients make use of your developments and have a happy shopping experience in our clients' webshops.

The international tech team of our client will congratulate you for all the value that you provide. You will pass your trial period with flying colours and you’ll have the opportunity to choose your hardware that will make you type faster than flash. And now, it is time to celebrate!

WHERE YOU WILL DO IT:

Our offices are in Edificio Europa, Avenida de Aragon in the heart of Valencia’s city centre. In our 12th floor with our stunning views of all the city of Valencia, we can even see the sea from a window on the same floor. In the area, there are plenty of restaurants, cafes, shops, gyms and green areas (Valencia is very cycle-friendly). You can use super-efficient public transport; the metro is right across the street from our building.

Are your curiosity levels peaking when reading this?

As a medior/senior fullstack developer you will work with a big team, we support our clients with digital transformation projects in different kind of industries (Retail, Automotive, Healthcare, …).

What will you be doing?

• As a full-stack developer, you can translate business requirements into a working product
• You will help identify and solve their most critical challenges through technology. You will work with architects, developers, functional experts and scrum masters in the business.
• You obtained a bachelor's or a master's degree, preferably in Computer Science.
• Good knowledge of English , B2/C1
• You can implement a new design and get the required data through a web service or from the back end to give the page the needed data. You can do it from A to Z!
• JavaScript, HTML and CSS3 are things you love working with .
• You can work with frameworks like AngularJS, React, Vue, and NodeJS

YOUR PROFILE

• You have 3 to 5+ years of experience as a Full-Stack Developer
• You have considerable experience working in React.js
• Experience with Node js and Nest js.
• Nice to have: knowledge in Gatsby y GraphQl
• Nice to have: any CMS knowledge (ContentStack, Contentful, etc)
• Experience building PWA apps is a big plus
• Good understanding of Core Web Vitals
• Clean code and refactoring techniques
• You have a "get-the-job-done"-mentality
• You communicate well with clients and team members
• You have a bachelor's or master's degree in software development, or you can prove to us that you are the right person for this job due to your experience or sheer awesomeness.
• You are very interested in Digital Transformations, and you realise how significant the impact of technology can be for a business.
• You are eager to learn about the latest trends and technologies so you can stay one step ahead of the pack
• You have an eye for detail
• You love to work in a team as well as individually
• You are very passionate about the latest technologies and trends
• You love to join a team that's pushing innovative ideas to the next level

WHAT WE BRING

• Hybrid Work. (2/3 day a week in the office).
• Permanent contract (Contrato indefinido).
• Competitive salary.
• Benefits program with restaurant tickets, transport tickets, kindergarten.
• Top private medical insurance paid by Xplore Group.
• Warm lunch everyday, coffee, tea and fresh fruits in the office
• Short working Fridays (8:00 - 15:00).
• Grow and keep track of technologies and certifications.
• Work in an international environment talking English part of the day, occasional traveling to Belgium and the Netherlands.

Full Stack Developer | AI Start-up | Spain

An unbelievable opportunity has opened for you to join a ground-breaking AI start-up in Spain as a founding developer. Backed by fresh Series A funding and founded by ex-directors of one of the world’s most prominent healthcare organizations, the team is building an AI platform ahead of its time.

You are a full stack engineer with a front-end bias, strong in TypeScript and React , and complemented by back-end skills in Node.js, Python, or FastAPI . You thrive on designing and deploying applications in cloud-based environments at speed and with precision, leveraging CI/CD pipelines to deliver high-quality outcomes. You also bring experience with PostgreSQL .

It’s a bonus, though not essential, if you’ve worked in a fast-paced start-up, have knowledge of Office.js , or bring an eye for UI/UX design .

You have an understanding of or passion for AI Architecture. You have excellent communication skills and the intellectual curiosity to go beyond coding, challenging assumptions, questioning the why, and shaping the what. As part of the founding engineering team, you will help shape both the product and the company’s future.

Why this role stands out

• Be part of a founding team in a high-growth AI start-up

• Build with bleeding-edge technology at a pivotal time in the industry

• Play a central role in solving key real-world challenges

• Work alongside visionary founders, staying ahead of the curve

If you back your technical skills and 'end-to-end' mindset, I want to hear from you.

Hybrid in Barcelona with a competitive salary, this is your chance to live in the sun while building the innovations of tomorrow.

Full Stack Developer | Freelance | Remote | Catalonia

I am currently working with a respected digital marketing agency who are looking to bring in an experienced Full Stack Developer to lead the department on a freelance basis to help improve their processes and deliver future projects.

Role Details:

Job title: Full Stack Developer.

Working Model: Remote.

Day Rate: D.O.E.

Contract Length: 6 Month contract with extension possibilities.

Key Skills

• Strong expertise in Python (non-negotiable) and Node.js (must)
• Proficiency with React for front-end development
• Experience with CI/CD pipelines and automation
• Strong background in data management (data lakes, warehouses, streaming analytics)
• Familiarity with cloud environments , ideally Google Cloud Platform (Big Data, ML fundamentals, resilient streaming systems)
• Ability to take projects end-to-end with focus on back-end development
• Solid understanding of modern software engineering practices (scalability, resiliency, clean code)

Key Responsibilities

• Deliver end-to-end development of small to medium-scale projects
• Lead the modernization of data lakes and data warehouses on Google Cloud Platform
• Build and maintain resilient streaming analytics systems
• Design, implement, and optimize back-end services and APIs (Python, Node.js)
• Develop and maintain React-based front-end components
• Implement and manage CI/CD pipelines to ensure reliable deployments
• Collaborate with stakeholders to define technical requirements and solutions
• Ensure applications are secure, scalable, and performant

Key Requirements:

• Full working proficiency in English
• Eligibility to work within the EU without sponsorship
• 4-7 years experience working with the above technologies

If this sounds interesting to you, please apply or send your CV with a contact number to

¡Ha llegado el momento de unirte al movimiento #NTTDATADigitalLover, donde la colaboración, la calidad humana, el crecimiento y la innovación están servidas! Si eres una persona apasionada de lo digital y tienes siempre la cabeza en las nubes buscando soluciones innovadoras, ¡lo que vamos a contarte puede interesarte!

En NTT DATA buscamos un perfil Fullstack Develope r con ganas de formar parte de un apasionante proyecto de transformación en el sector de la salud. Trabajaras estrechamente con otros ingenieros y dueños de producto, utilizando tecnologías frontend y backend basadas en JavaScript, typescript y java, y aplicando las practicas más modernas de CI/CD.

Como parte de tu dia a dia, te enfrentaras a retos con tecnologias de frontend basadas em Web cmponents, utilizando JavaScript vanilla y Lit elements para crear, junto a los equipos de diseño, interfaces limpias, accesibles y modernas.

En backend, serás el responsable de implementar microservicios en Java con un stack completo basado en OpenTlemetry, desplegado en kubernetes y apoyándote en tecnologías de mensajería como Kafka, bases e datos como Oracle (tanto relacional como no relacional) h sistemas de chache como redis.

Como senior Engineer, tus responsabilidades serán:

• Asegurar que las soluciones diseñadas se equilibran en cuanto a demanda y viabilidad y que cumplan con los estándares de seguridad.
• Guiar la construcción de soluciones siguiendo a las arquitecturas de referencia en el proyecto basadas en Lit Elementes y Web Components.
• Implementar microservicios utilizando Microprofile , garantizando el cumplimiento de los estándares y las directrices relacionadas con la implementación de las arquitecturas limpias.
• Promover, compartir e implementar mejores prácticas de ingeniería en el equipo.
• Identificar y resolver problemas complejos relacionados con su ámbito de soluciones.
• Trabajar en propuestas técnicas que reflejen las necesidades del servicio.
• Crear prototipos y pruebas de concepto para validar ideas.
• Mantener documentacion de calidad sobre los componentes web y microservicios desarrollados.
• Dar retroalimentación precisa y accionable al equipo, especialmente en calidad de código y consumo de APIs mediante programación por partes o code review.

Experiencia requerida:

• +2 años en sedarrollo de soluciones con JAvascript y TYpescript
• +2 años en desarrollo de arquitecturas basadas en microservicios
• Experiencia demostrable n Lit Elements
• Experiencia trabajando con arquitecturas basadas en microfrontends
• Experiencia en pruebas con open-wc/testing y web(test-runner
• Experiencia con Oracle y Kafka (u otra solución de mensajería) demostrable
• Experiencia en las mejores practicas de ingeniería de software (por ejemplo, pruebas unitarias, revisiones de código, patrones de diseño

Será un plus si:

• Has trabajado con Azure Cloud
• Soltura demostrable en el uso de Docker
• Has trabajado con React
• Has trabajado con Kubernetes
• Te desenvuelves bien con git, Confluence y Jira
• Tienes experiencia como full-stack
• Tienes experiencia con Figma o cualquier otra herramienta para desarrollar prototipos

Y ahora sí, ¿Qué te ofrecemos? Lee con detenimiento porque esto realmente merece la pena