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Senior Frontend Engineer at SkyCell AG. Do you have proven experience as a Senior Frontend Engineer, with a strong background in designing and implementing clean, maintainable, and scalable client-side code using . TypeScript. and . React. ? Are you familiar with the entire JavaScript ecosystem, and have the ability to collaborate effectively with a variety of stakeholders? Then join us as a Senior Frontend Engineer and play a vital role in our mission. Be a part of our team and help us deliver innovative solutions that make a real impact.. At our company, we're on a mission to change the world by revolutionizing the digital landscape. Our cutting-edge web and mobile applications are designed to enhance user experience and improve customer engagement, with quality and security at the core of everything we do.. We’re a fast-growing, purpose-driven scale-up where you’ll make an impact, feel empowered, and thrive in a diverse, innovative environment.. Why SkyCell?. · 🌱 Purpose-Driven Work: Make a real difference by contributing to a more sustainable future in global logistics and healthcare.. · 🚀 Innovation at Heart: Work with cutting-edge technology and be at the forefront of supply chain innovation.. · 🌎 Stronger together: Join a supportive team of talented individuals from over 40 countries, where we work together every step of the way.. · 💡 Growth Opportunities: We believe in investing in our people – continuous learning and development are key pillars of SkyCell.. · 🏆 Award-Winning Culture: Join a workplace recognized for its commitment to excellence with a ‘Great Place to work’ award, as well as a Platinum Ecovadis rating highlighting our sustainability and employee well-being.. What You'll Do:. Our Frontend team designs and implements high-quality client-side code, develops scalable, reliable, and secure mobile and web applications, and assures quality via testing and best practices. The team uses modern, standard technology, focuses on security and stability, and is proud to be a great and esteemed counterpart of our development teams.. In this role you'll also:. . Design and implement clean, maintainable, and scalable client-side code using . TypeScript. and . React. . . Build and iterate on responsive, reliable, and secure . web applications. that perform across devices.. . Ensure product quality with . unit tests (Jest). and . end-to-end tests (Playwright is a nice-to-have). . . Own feature development from idea to deployment, aligning closely with product and design. . Review code, challenge assumptions, and help raise the technical bar across the team. . Mentor less experienced engineers and support team growth through technical guidance. . Help shape frontend architecture and guide long-term decisions (modularity, patterns, performance). . Troubleshoot PROD issues including HotFix coordination and root cause analysis. . Contribute to documentation and ensure that developed components are reusable and easy to onboard. . Collaborate with backend devs on API definitions and coordinate with QAs and BAs on new implementations.. . What You'll Bring:. . Expertise in . TypeScript. , modern . JavaScript. , and the React ecosystem (hooks, context, modular design). . Solid grasp of . HTML5. , . CSS3. , and responsive design principles. . Comfortable working in a fast-paced, iterative, . CI/CD environment. . . Understanding of web security, performance, and accessibility best practices. . Experience designing or contributing to scalable frontend architectures. . Proficient with Git, npm/yarn, and modern tooling. . Familiarity with agile processes and delivering frequently with fast feedback loops. . 5+ years of relevant professional experience. . Nice to have:. . Experience with . MUI v5. or other component libraries/design systems. . Exposure to . React Native. for cross-platform mobile development. . Familiarity with tools like . React Query. , . Storybook. , or . Lighthouse. . . Experience with . GitHub Actions. . . Experience with frontend monitoring tools (e.g., Sentry, Logz.io). . Understanding of mobile-first and accessibility-first design principles. . Company Location: Portugal.