Job Summary: We are seeking a Senior Frontend React Developer for a neobank, responsible for designing, developing, and maintaining user interfaces, ensuring code quality, and fostering a collaborative environment. Key Highlights: 1. Design, develop, and maintain user interfaces using React and Next.js. 2. Ensure code quality and robustness through testing and code reviews. 3. Foster a collaborative environment and document technical decisions. Join our team as a **Senior Frontend React Developer** for one of our key clients—a well-known neobank. A minimum of 5 years’ experience with **React / NextJS** is required, along with the ability to attend the Madrid city-center office two days per week. **Responsibilities**: * **Design, develop, and maintain user interfaces** using **React, Next.js, and TypeScript.** * Participate in **technical analysis sessions and refinement meetings** to define solutions aligned with business requirements. * **Ensure technical decisions** are well-founded and contribute to project stability and sustainability. * Implement and execute **tests using Vitest and React Testing Library** to guarantee the quality, stability, and robustness of delivered code. * **Participate in code reviews**, ensuring adherence to team best practices and technical standards. * **Build new interfaces from scratch**, as well as maintain, refactor, and customize existing components. * Document code, processes, and technical decisions clearly and effectively to facilitate knowledge transfer within the team. * Foster a **collaborative environment**, contributing ideas and improvements toward the team’s collective success. **Minimum Requirements** Solid experience (minimum 5 years) developing with **React, Next.js, TypeScript, and API integration.** * Advanced knowledge of **testing with Vitest and React Testing Library.** * Prior experience working with agile methodologies (Scrum/Kanban). * Knowledge of hybrid application development. **What We Offer?** * **Permanent contract**: From day one, with option of 12 or 14 annual payments. * **Hybrid model**: 2 days per week at the Madrid city-center office. * **Flexible schedule**: Flexible hours (start at 8:30 AM, end at 6:00 PM), with intensive Fridays (8:00 AM–3:00 PM) and summer intensives (July and August: 8:00 AM–3:00 PM). * **Vacation**: 22 vacation days + 2 personal days, plus December 24th and 31st off. * **Flexible compensation**: Meal card, childcare voucher, private health insurance, training, and other tax-advantaged benefits. * Benefits Club: Discounts on technology, leisure, and training. * **Continuous training**: Access to Udemy Business, language courses, official certifications, and technical training. * **Career development plan**: Support to grow, specialize, or take on new challenges. * **Holistic wellbeing**: Nutrition, physical activity, and emotional balance programs. * **Inclusive environment**: Diverse and multicultural workplace. * **Social events**: Activities to connect with the team. Apply now and we’ll share more details! Stay updated on our latest opportunities—follow us here → knowmad mood At knowmad mood, we are committed to diversity and inclusion, creating equal opportunities for all individuals.