React and Boot lead developer IT

MISSION

The candidate is responsible for leading the design, development, and optimization of user-facing applications built with React using a Java Spring Boot backend. They will act as a technical lead for front-end initiatives, mentoring developers, enforcing coding standards, and ensuring best practices in performance, maintainability, and scalability.

• Design, develop, and maintain modern web applications using React, JavaScript, Redux, REST APIs and supporting Spring Boot backend applications (Back-end for Front-end principle).
• Collaborate closely with backend developers to adapt and extend existing Java services for frontend integration.
• Lead the implementation of efficient state management with Redux and middleware such as Redux Thunk.
• Implement back-end functionality in Spring Boot supporting the front-end.
• Optimize applications for maximum speed and scalability, identifying and resolving performance bottlenecks.
• Drive code quality through reviews, automated testing, and adherence to clean code principles.
• Define and maintain front-end architecture and best practices, ensuring consistency across components and projects.
• Collaborate with UX/UI designers to translate design concepts into responsive, interactive, and intuitive interfaces.
• Support CI/CD processes, ensuring smooth deployment and version control alignment with backend updates.
• Mentor junior developers, fostering a culture of continuous learning and collaboration.

• Bachelor's degree in computer science, Software Engineering, or equivalent professional experience.
• At least 5 years of experience with React.
• Strong proficiency in JavaScript (ES6+), React, Redux, and React Router.
• At least 3 years of experience with Spring Boot backends.
• Solid understanding of frontend architecture, modular design, and component-based development.
• Experience in using functional programming style and supporting libraries like Ramda.
• Experience working with Spring Boot java-based back-ends.
• Familiarity with CI/CD pipelines, Git, and automated build processes.
• Proven ability to troubleshoot, debug, and optimize front-end performance.
• Strong understanding of responsive design and cross-browser compatibility.

• Excellent communication skills and high drive;
• Sense of responsibility and initiative;
• Ability to work autonomously;
• Resistance to stress and time-pressure;
• Excellent interpersonal skills and customer orientation;
• Agile and flexible mindset, reactive to requests;
• Excellent organizational skills and attention to detail;
• Ability to interact with colleagues of diverse cultures; respect for diversity;
• Full professional proficiency in Office 365 is expected.
• Full professional proficiency in spoken and written English is required; knowledge of other languages is an asset.
• Spanish national, EU national, or holder of a valid spanish work permit.