Lead React Developer About the Project Join a forward-thinking team working on a cutting-edge sustainability platform. Our mission is to empower individuals and organizations to reduce their environmental impact through technology, while maintaining a user-first experience. Your Role We are looking for a highly skilled and experienced Lead React Developer to guide our team in building scalable, high-performance applications. You'll play a crucial role in making key technical decisions, driving best practices, and mentoring a team of talented developers. Key Responsibilities Architect and Design : Lead the design and implementation of our React-based front-end, ensuring scalability, maintainability, and performance. Technical Leadership : Define coding standards, implement best practices (e.g., clean code, design patterns, testing), and set quality benchmarks. Decision-Making : Collaborate with stakeholders to make informed decisions about technology, tools, and architecture. Team Collaboration : Work closely with UX/UI designers, back-end developers, and product managers to deliver exceptional user experiences. Mentorship : Coach and mentor team members, fostering a culture of growth and collaboration. Code Reviews : Perform detailed reviews to ensure the codebase meets high standards and aligns with the project's goals. Focus on Sustainability : Help implement features and systems that align with our mission of promoting sustainability and eco-awareness. Qualifications Experience : 5 years in front-end development with a strong focus on React.js, and 2 years in a leadership role. Expertise : Proficient in JavaScript/TypeScript, React, Redux, Context API, and modern front-end build tools (e.g., Webpack, Vite). UI/UX Skills : Experience building responsive and accessible user interfaces. Best Practices : Deep knowledge of testing frameworks (e.g., Jest, React Testing Library), CI/CD pipelines, and version control systems like Git. Problem Solving : Strong analytical and debugging skills with a proactive approach to overcoming challenges. Communication : Excellent interpersonal skills with the ability to articulate technical concepts to both technical and non-technical stakeholders. Sustainability Enthusiasm : Passionate about making a positive environmental impact through technology. What We Offer A hybrid work environment with 3 in-office days at our modern location near Atocha Station , Madrid. Competitive salary and benefits, including health insurance and professional development opportunities. The chance to lead a high-impact project in a purpose-driven organization. A collaborative, diverse, and innovative team passionate about sustainability. Ready to join us? If you are passionate about leading high-performing teams and building technology that makes a difference, we'd love to hear from you Apply now and let's build a greener future together.