Senior Frontend Developer

📍This job is based in Lisbon, Portugal 🎯About The Role We are looking for a Frontend Developer with strong experience in building modern, secure, and high-performing web applications. You will work on projects using React and Next.js, integrating APIs and collaborating with backend teams to deliver exceptional user experiences. 👋Who are we? We are a European company with over 270 professionals dedicated to our clients. We provide innovative and high-performing investment solutions across Europe. The company is recognized for its development success and its sense of innovation. Our company is exclusively owned by its managers. Nearly 160,000 clients trust us with their savings, totaling over 9.6 billion euros. With offices in Paris, London, Dublin, Amsterdam, Singapore, Lisbon, and Vienna, our head office is based in Paris. 💼 Your missions As a Senior Frontend Developer, you will: Develop and maintain responsive, performant web applications using React and Next.js.Implement API integrations and apply Backend-for-Frontend (BFF) patterns.Ensure code quality through Playwright testing and best practices.Apply Domain-Driven Design (DDD) principles adapted for frontend architecture.Optimize websites for performance, SEO, and accessibility.Implement security best practices for frontend applications (e.g., XSS prevention, secure API calls, authentication flows).Participate in technical design sessions and mentor team members. 👤Qualifications And Experience Technical Experience You should have hands-on experience with: Frontend Frameworks: React, Next.jsTesting Tools: PlaywrightCloud Platforms: Microsoft Azure (or similar)API Integration and BFF patternsSecurity Practices: OWASP guidelines, secure data handling, authentication/authorizationPerformance Optimization: Code splitting, caching strategies, image optimization, Lighthouse auditsArchitecture Concepts: DDD principles for frontend Desired Skills Strong understanding of component-driven architecture and state management.Experience with SEO optimization and Next.js performance tuning.Familiarity with SOLID principles and scalable frontend design patterns.Knowledge of CI/CD pipelines, containerization (Docker), and automated deployments. What we offer? 🌍Join an entrepreneurial adventure in an international environment💡Work on diverse projects that will stimulate your creativity💻Enjoy the flexibility of remote work up to 2 days a week🎯Benefit from professional development opportunities