Descripción de la oferta
Job Title: Senior Frontend DeveloperLocation: Fully RemoteRate: €300–€350 per day (depending on experience)Contract: Open-endedOverviewWe are looking for a Senior Frontend Developer to play a key role in building and evolving high-performance web applications. You will be responsible for developing modern, conversion-focused user interfaces, contributing to frontend architecture, and driving performance improvements across a range of digital products.You will work closely with Product, Design, Marketing, QA, and Backend teams to deliver scalable, user-centric solutions.Key Responsibilities• Build modern, high-conversion user interfaces using React and Next.js• Develop and maintain frontend architecture with a modular and scalable approach• Implement new features from scratch while improving and optimising existing applications• Develop frontend components for both public-facing products and internal tools• Ensure cross-browser and cross-device compatibility• Write clean, reusable, and maintainable TypeScript code• Integrate with REST and/or GraphQL APIs and manage asynchronous data flows• Participate in code reviews and contribute to engineering best practices• Continuously identify opportunities to improve performance, scalability, and user experience• Collaborate closely with cross-functional teams across Product, Design, Marketing, and QARequirements• Strong experience with React and Next.js• Solid experience using TypeScript in production environments• Strong understanding of modern JavaScript, including asynchronous programming (Fetch API, Axios)• Experience consuming RESTful APIs and/or GraphQL services• Good understanding of frontend architecture, modular design, and design patterns (SOLID principles)• Experience with NPM and package management, including optimisation• Familiarity with testing frameworks and writing testable code• Working knowledge of AWS and cloud-based deployment practices• Strong understanding of JSON and API data handling, including error management• Comfortable working in cross-functional teams in an agile environmentNice to Have• Experience with performance optimisation and frontend monitoring• Familiarity with AI-assisted development tools and workflows• Previous experience working on high-traffic or conversion-focused platformsSoft Skills• Strong problem-solving ability and attention to detail• Proactive mindset with a high level of ownership• Clear communicator, comfortable working with both technical and non-technical stakeholdersAdditional Requirement• Native or fluent Spanish (written and spoken) is mandatory
