Fullstack Software Engineer

About the Fullstack Engineer Offer.

Our client, a fast-growing organization leveraging AI-driven technology, is looking for a motivated Full Stack Developer to join our product and engineering team.

If you are passionate about building scalable applications that generate real impact and want to work in a dynamic, data-driven environment, this is the opportunity for you.

What are the roles and responsibilities of a Fullstack Engineer?

As a Fullstack Engineer with a frontend emphasis, you will work closely with product, data, and computer vision teams to deliver responsive, intuitive, and scalable user interfaces.

Develop modern, dynamic frontend applications using React (Next Js), with a strong eye for user experience and performance.

Collaborate in the design and refinement of backend APIs and data models to support seamless frontend integration.

Implement efficient state management, reusable components, and responsive design principles for cross-device compatibility.

Contribute to backend logic and integration, primarily with Node.js services and RESTful APIs, when needed.

Optimize application behavior to ensure fast load times, efficient performance, and smooth user experiences.

What skills should I have to be a good Fullstack Engineer?

Minimum of 2 years of hands-on experience with React and Node.

• If you only work with one of the technologies, don’t hesitate to apply anyway.

Bachelor's degree in Computer Science, Engineering, or a closely related technical field is required. Applications from candidates who do not meet this requirement will not be considered.

Strong proficiency in front end development using React and / or Node Js.

Solid understanding of RESTful APIs, asynchronous programming, and real-time technologies like WebSockets.

Hands-on experience with MongoDB and MySQL, working across both NoSQL and relational database environments.

Familiarity with DevOps tools such as GitHub Actions, Docker, and cloud infrastructure including AWS.

Fluent in English and Spanish, both written and spoken. (Catalan is a plus)

Why should I apply for the Fullstack Engineer Offer?

A high-impact role in a growing company.

Flexible working hours and hybrid model. (Barcelona city based)

Flat hierarchy and agile, collaborative environment.

Access to exciting international projects.

Competitive salary based on experience and qualifications, with expectations starting from €27,000 gross annually.