Job Summary: We are seeking a Senior Front-end Developer (React) to develop and evolve e-commerce platforms in a challenging and collaborative technical environment. Key Highlights: 1. Development and evolution of e-commerce platforms with React 2. Work on decoupled frontend and Checkout optimization 3. Collaboration in continuous improvement of technical standards and processes Would you be interested in further developing your career as a **Front\-end Developer (React)** at an **international leader in the e\-commerce and natural health sector**, in a **100% remote**, collaborative environment with technically challenging projects (decoupled frontend, Checkout, B2B platforms)? Oxigent Technologies is looking for a **Senior React Developer** to join a project focused on the development and evolution of e\-commerce platforms, based in Spain **(100% remote).** If selected, your mission will be to contribute to enhancing the shopping experience and internal platforms (PIM/ERP), collaborating on the continuous improvement of technical standards, quality, and team processes. **What will be your main responsibilities?** * Develop and maintain high-quality web applications using React. * Work in a decoupled frontend environment, B2B platforms, internal systems (PIM/ERP), and Checkout optimization. * Collaborate on improving CI/CD pipelines. * Implement testing strategies and participate in code reviews. * Apply UI/UX and styling best practices, creating reusable and responsive components together with the Design team. **What qualifications do you need?** * Over 6 years of software development experience. * Solid experience with React, TypeScript, and Next.js. * Proficiency in JavaScript ES6, HTML5, and CSS3\. * Knowledge of state management, Git, and REST API consumption. * Fluent Spanish and professional English for technical communication. **Desirable:** * Node.js, GraphQL * MySQL / PostgreSQL and/or NoSQL databases * Experience with CI/CD, automated testing, and decoupled frontend architectures **What do we offer?** * Permanent contract through Oxigent. * **Salary** commensurate with experience (between €50,000 – €55,000 gross annual). * **100% remote work** from any location within Spain. * **Flexible working hours** * Training vouchers to develop in areas of greatest interest to you. * Private health insurance. * Flexible compensation (meal, transportation, childcare, training, and health insurance). * Gym access app and sports activities across Spain with discounts. * **And many other benefits!** Join the Oxigent team! A company committed to sustainability and equal opportunities, where talent and technology know no gender. Location: Spain \- Barcelona Date: 20/01/2026 Salary: €50,000 Employment Type: Employee