Job Summary: A leading company in the energy sector is seeking a Senior/Semi-Senior Frontend Developer with experience in React and Redux to join its team and actively participate in the development of modern applications. Key Highlights: 1. Opportunity at a leading company in the energy sector. 2. Challenging role with modern technologies (React, Redux). 3. Strong commitment to quality and project scalability. **Description:** ---------------- Would you like to work at a leading company in the ENERGY sector? We are a national company experiencing significant growth, operating in the energy sector for both residential and commercial clients. We are seeking a candidate for the position of **Senior / Semi-Senior Frontend Developer (React + Redux)** at our offices in FUENGIROLA. Profile: We seek a PROFESSIONAL holding a Bachelor’s degree and possessing at least 3 years of verifiable experience leading or actively participating in the development of modern applications using React. Critical thinking, solid JavaScript fundamentals, and a clear focus on quality, scalability, and performance are required. The ideal candidate must master tools within the React ecosystem, understand the rationale behind each technical decision, and enjoy working in agile teams where technical excellence and collaboration are the norm. Technical Requirements Frontend (Mandatory) * Advanced experience with React, including understanding of component lifecycle and proper use of Hooks * Strong command of JavaScript ES6+ and deep understanding of asynchrony (promises, async/await, event loop) * Solid proficiency in managing global state with Redux * Strong knowledge of SCSS, with modular architecture and BEM principles * Experience in Responsive Design and Pixel-Perfect development * Experience in Webpack configuration and optimization * Experience in automated testing with Jest (unit and integration tests) * Experience in real-time communication via Socket.IO * Solid experience consuming and managing REST APIs * Experience in internationalization (i18n) with react-i18next Backend (Desirable, not mandatory) * Basic knowledge of Node.js and Express, or genuine interest in learning them Environment and Tools * Proficiency in using bash terminal and basic Linux system administration * Experience working with Jira and agile methodologies, especially Scrum * Ability to understand and produce clear, structured technical documentation * Knowledge of Git and CI/CD workflows Languages and Communication * Spanish: native or advanced level * English: sufficient technical level to read documentation, understand concepts, and communicate during occasional technical meetings Best Practices and Work Style * Application of KISS, DRY, and SOLID principles * Clean, modular, and well-documented code * Strong commitment to quality, maintainability, and scalability of the project We Value * Ability to analyze and optimize code * Autonomy, responsibility, and attention to detail * Genuine interest in learning new technologies and improving processes What We Offer: * Permanent contract * Salary commensurate with the position * Excellent working environment * Full-time schedule (Monday to Friday) * Growing company * Opportunities for career advancement _________________________________________________________________ COMPETENCIES Proactive, committed individuals with initiative, strategic vision, versatility, problem-solving skills, effective communication, adaptability, time management, and ability to work collaboratively in teams. What are you waiting for? We’re looking for professionals like you! We look forward to meeting you and providing further details. All we need is your motivation to work and to excel.