Job Summary: We are looking for a Senior Frontend React developer to join an innovative and collaborative technological environment, capable of defining development frameworks and writing scalable code. Key Highlights: 1. Technological, innovative, and collaborative environment 2. Ability to define development frameworks and best practices 3. Skill in writing high-quality, scalable, and maintainable code Join our team as a **Senior Frontend React Developer** and become part of a technological, innovative, collaborative, and continuously evolving environment. **What We Value:** We seek professionals who meet a set of requirements. Below we detail the characteristics expected from the ideal candidate. Don’t worry if you don’t meet all of them—you may still be an excellent fit for this role. If you believe you’re a match and ideal for this position, please contact us! Especially if you meet: **4+ years of experience** or more in a similar role Ability to define a development framework and establish **best practices for designing React applications** Knowledge of **HTML / CSS (SASS)** Experience working with **NodeJS** Experience with **React** Experience working with **JavaScript**, both plain and within frameworks Experience working with TypeScript Knowledge of **Jest, RxJS, Webpack, Styled-components…** Knowledge and/or experience with non-relational NoSQL databases. Currently, we use **MongoDB and Redis** (among others) Ability (and virtue!) to write high-quality, scalable, and maintainable code When coding, follow established patterns such as **Domain-Driven Design (DDD)** or **SOLID** principles, along with industry standards Familiarity with testing tools and concepts such as unit tests, integration tests, code coverage, mocking, etc. Experience using a version control system (we use Git) and **CI/CD tools** Ability and motivation to learn new technologies, tools, and techniques A **team player capable of collaborating and connecting with colleagues across the team and organization** Ability to work using agile methodologies Responsibility for certain services throughout their entire lifecycle: development, changes, improvements, and incident resolution Ability to view problems as opportunities to improve the current situation. Our vision is that software is the ideal medium to solve the daily business challenges faced by our clients Willingness and attitude to understand the business, the sector, and contribute ideas **What We Offer:** * Hybrid model (**50% remote – 50% office**), offices in Madrid (Barajas area) * Flexible schedule: **flexible hours**, start at 8:00 AM, end at 5:00 PM; Fridays from 8:00 AM to 2:00 PM. * Vacation policy: **22 vacation days + 2 personal days**, plus December 24th and 31st off. * Permanent contract: From day one, with option for 12 or 14 annual payments. * Flexible compensation: Meal card, childcare voucher, private health insurance, training, and other tax-advantaged benefits. * Benefits Club: Discounts on technology, leisure, and training. * Continuous learning: 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 programs, physical activity, and emotional balance initiatives. * Work-life balance + LIFE: 24/7 personal and family assistance. * Inclusive environment: Diverse and multicultural workplace. * Social events: Activities to connect with your team. **Interested in learning more?** **Apply now**, and we’ll be delighted to discuss all the details with you. Follow us here to stay updated on our latest news → knowmad mood *“We are committed to equal opportunity and respect for diversity. We implement our Equality Plan and the principle of non-discrimination across all our recruitment processes.”* **Join a team of digital nomads!**