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# Full Stack Engineer

- **Company:** Employment Business Square One Resources
- **Location:** Spain (Remote available)
- **Salary:** €65,000.0 - €78,000.0
- **Contract:** Temporary contract
- **Skills:** Java (Programming Language), Amazon Web Services, Application Performance Management, Unit Testing, Microsoft Azure, Business Process Management, Software Quality, Cyber Security, Computer Programming, Databases, Continuous Integration, Cross-Origin Resource Sharing (Ajax Programming), Cross-Site Request Forgery, Software Debugging, Enterprise Content Management, Elasticsearch, Revision Control Systems, JSON, PostgreSQL, MySQL, Node.Js, Oracle (Applications), Software Engineering, Systems Integration, TypeScript, Web Content Accessibility Guidelines, Web Performance Optimization, Extensible Markup Language (XML), Google Cloud, Test-Driven Development (TDD), ReactJS, Delivery Pipeline, Spring-boot, Cross-Site Scripting (XSS), Backend, Gitlab, Git, Non-relational Database, Bitbucket, Api Gateway, Restful APIs, Es2015, Intelligent Document Processing, Docker, Jenkins, Microservices
- **Published:** October 22, 2026
- **Apply:** https://www.careerboard.com/es/en/find-jobs-in-Spain/-943E0B1D3CFFDFE70F/

## About the Role

* Strong programming experience with Java and Spring Boot or Node.js.
 * Excellent knowledge of JavaScript (ES6+), TypeScript and React.js.
 * Experience with REST APIs, JSON/XML, microservices and API gateway integrations.
 * Practical experience with databases such as PostgreSQL, MySQL, Oracle or Elasticsearch.
 * Understanding of web performance optimisation, browser security, CORS, XSS, CSRF and WCAG accessibility standards.
 * Experience with Docker and Kubernetes.
 * Familiarity with AWS, Azure or Google Cloud Platform.
 * Knowledge of CI/CD pipelines and version control tools such as Git, GitLab, Jenkins or Bitbucket.
 * Strong analytical, problem-solving and debugging skills.
 * Confident communication skills and the ability to collaborate with distributed technical teams.

Desirable Experience

 * Developing administrative consoles or data-intensive dashboard interfaces.
 * Exposure to Enterprise Content Management (ECM), Business Process Management (BPM) or Intelligent Document Processing (IDP) platforms.
 * Experience working with complex microservices environments.

## Description

We are seeking an experienced Full Stack Engineer for an exciting 12-month remote contract with an established international organisation. You will contribute to the design, development and optimisation of scalable web applications, working across both Front End and Back End technologies.

You will take ownership of product features, collaborate with technical teams across the development life cycle, and ensure solutions are secure, reliable and aligned with business requirements., * Design, develop and maintain full-stack web applications using Java (Spring Boot) or Node.js, alongside React and TypeScript.

 * Build and integrate RESTful APIs within microservices-based architectures.
 * Work with relational and non-relational databases to support application functionality and performance.
 * Contribute to technical design discussions, balancing scalability, business value and delivery timelines.
 * Develop unit tests and promote test-driven development practices.
 * Identify and resolve technical issues, including application performance and debugging challenges.
 * Implement secure coding practices and consider potential security risks.
 * Participate in peer reviews and maintain high standards of code quality.
 * Lead the development and delivery of individual product features.
 * Support containerisation, deployment and continuous integration processes.