Experienced Frontend Software Engineer - Navigate & Adwise

A leading European consumer electronics retailer with a strong omnichannel presence, seamlessly integrating physical stores and digital platforms to deliver connected shopping experiences. Its technology hub drives high-impact products and platforms for millions of customers across multiple countries, with international teams working in agile environments using cutting-edge technologies.]Role Mission and Location:We are looking for a Frontend Engineer / React Developer whose mission is to design and build scalable, accessible, and user-centric web experiences for a high-traffic ecommerce platform. The position is based in Barcelona, with a hybrid work model combining remote and on-site work.]Responsibilities:You will develop new webshop features based on business requirements and user needs, integrating UI components with a complex backend service ecosystem. You will collaborate closely with Product Owners, UX designers, and frontend engineers to deliver scalable, customer-facing components and pages. Additionally, you will take part in requirement analysis, code reviews, debugging, and troubleshooting, while ensuring consistency, usability, and accessibility across the product interfaces.Essential Requirements:Strong experience in frontend development using React for SPA applicationsProficiency in modern JavaScript (ES2022+) and TypeScriptAdvanced knowledge of HTML5 and CSSStrong understanding of user-centered design and attention to UX/UI detailsExperience treating accessibility, performance, and testing as core development pillarsExperience with test automation and browser testingHands-on experience with GraphQL, including schema design, querying, and performance optimizationAbility to work in agile teams and collaborate with cross-functional stakeholdersFamiliarity with Continuous Delivery, cloud environments, and microservices architecturesTeam-oriented mindset with ownership and autonomyNice to Have:Experience with headless CMS, especially ContentfulKnowledge of SEO best practices in ecommerceExperience with A/B testing tools such as OptimizelySkills in web performance optimization and related toolsUnderstanding of Core Web Vitals and their business impactExperience in international environmentsProfessional proficiency in English or GermanWhy Join the Company:You will be part of a dynamic and international tech environment where you can actively shape products, culture, and ways of working. You’ll have a real impact on a platform used by millions, with strong opportunities for both technical and personal growth.Key benefits include:Hybrid work model and flexible scheduleShort Fridays and summer hoursLearning and development budgetLanguage classesDay off on your birthdayEmployee discount on ecommerceFlexible compensation plan (meals, health insurance, etc.)Visa supportOffices in BarcelonaModern tech stack