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Job Summary: We are looking for a React Developer with experience in modern technologies to design, build, and optimize scalable web applications, ensuring quality and collaborating across disciplines. Key Highlights: 1. Design and development of scalable web applications with React 2. Backend and database integration (NodeJS, NoSQL) 3. Mentoring, technical leadership, and continuous improvement We are knowmad mood! We are a leading digital transformation company, constantly evolving and at the forefront of technology. We were founded to drive real change through innovation and sustainable development, with a mission to deliver value to our clients and empower our talent. Comprising over 3\,000 creative, digital, and innovative people connected by purpose and capable of building connections with individuals worldwide. A responsible, flexible team with high adaptability to our clients’ and the market’s needs — while delivering value, vision, creativity, expertise, professionalism, and passion for technology in every project. Our core values guiding us toward excellence are collaboration, innovation, commitment, fun, and trust. **What do we value?** At least 4 years of experience as a React Developer in: * Solid experience with **React**, **JavaScript** (vanilla and frameworks), and **TypeScript**. * Advanced knowledge of **HTML / CSS (SASS)**, **NodeJS**, and tools such as **Jest, RxJS, Webpack, Styled\-components**. * Experience with **NoSQL databases**, such as MongoDB and Redis. * Ability to write **high-quality, scalable, and maintainable code**, following patterns like **DDD** or principles like **SOLID**. * Experience with **unit testing, integration testing, and code coverage**, as well as version control (**Git**) and **CI/CD** tools. * Teamwork skills, effective communication, and willingness to **mentor** other developers. * Experience working with **agile methodologies**. **What would your responsibilities be?** * **Frontend Development with React**: Design and build scalable web applications, optimizing frontend architecture and applying React best practices. * **Backend and Database Integration**: Collaborate with NodeJS and NoSQL databases to ensure proper service integration. * **Quality and Testing**: Implement unit and integration tests to ensure code quality and adherence to team standards. * **Mentoring and Technical Leadership**: Support other team members in development best practices and lead technical projects. * **Optimization and Continuous Improvement**: Analyze issues and propose efficient solutions to improve our applications and user experience. * **Cross-disciplinary Collaboration**: Work alongside other web teams to enhance the **usability and accessibility** of our websites and applications. **Additionally, we highly value experience and/or knowledge in:** * Experience with complementary **React frameworks and libraries**. * Knowledge of **agile methodologies and DevOps**. * Experience in **web performance optimization** and accessibility best practices. * Skills in **software architecture** and application scalability. * Willingness to learn new web technologies and development techniques. Hybrid work model: offices in **Madrid (Barajas)** Working hours: Mon–Thu 08:00–14:00 / 15:00–17:30; Fri 08:00–14:00 No summer intensive schedule *At* ***knowmad mood*** *we are committed to equal opportunities and respect for diversity. We apply our Equality Plan and the principle of non-discrimination across all our recruitment processes.* Stay updated on our news by following us here \-\> knowmad mood
