Senior Frontend Engineer

way the automotive industry connects, trades, and grows. Through significant investment in technology, data, and AI, we're building the next generation of digital products that power vehicle marketplaces, customer experiences, and business operations across Europe. As part of this transformation, we're expanding our Technology Hub in Lisbon and looking for a talented Senior Front-End Engineer to help build exceptional digital experiences that delight users and deliver business value at scale. This is an exciting opportunity to join a high-performing product engineering team, working with modern front-end technologies, AI-assisted development tools, and a collaborative group of engineers, designers, and product professionals who are passionate about innovation and excellence. The Opportunity As a Senior Front-End Engineer, you'll play a key role in designing, building, and evolving world-class user experiences across our European product portfolio. You'll work closely with Product Managers, UX/UI Designers, Back-End Engineers, Architects, and fellow Front-End Engineers to deliver modern, scalable, and accessible web applications. You'll be an expert in React and modern front-end engineering practices, helping to shape how we build and deliver customer-facing solutions through micro-frontends, GraphQL, cloud-native architectures, and AI-enabled engineering practices. What You'll Be Doing Design, build, and maintain engaging, scalable, and responsive user experiences. Develop and evolve micro-frontends using modern React-based architectures. Design and consume GraphQL APIs while collaborating closely with back-end engineering teams. Select and apply the most effective rendering strategies, including SSR, SSG, SPA, and PWA approaches. Translate UX and design concepts into high-quality, accessible, and performant user interfaces. Build quality into every release through automated testing and continuous delivery practices. Optimise performance, accessibility, security, and overall user experience. Participate in architectural discussions and contribute to technical design decisions. Review code and provide technical guidance to fellow engineers. Mentor and support less experienced developers within the team. Leverage AI-assisted development tools to improve productivity while maintaining engineering excellence. Contribute to a culture of innovation, collaboration, and continuous learning. What We're Looking For Essential Experience & Skills Expert-level experience with React and modern front-end development. Strong experience designing and consuming GraphQL APIs. Experience building and supporting Micro-Frontend architectures. Strong knowledge of JavaScript/TypeScript, HTML, CSS, and responsive design principles. Experience with modern rendering approaches including SSR, SSG, SPA, and PWA. Experience deploying and supporting front-end applications in AWS environments. Strong understanding of accessibility, usability, and front-end performance best practices. Experience with testing frameworks such as Jest and React Testing Library. Experience working in Agile environments with CI/CD practices. Hands-on experience using AI-assisted development tools such as GitHub Copilot, Claude Code, or similar. Strong communication and collaboration skills. Professional proficiency in English. Nice to Have Experience with Next.js. Experience with Playwright and end-to-end testing. Familiarity with .NET/C# environments. Experience with Terraform and Infrastructure as Code. Experience with observability and monitoring tools such as New Relic. Knowledge of Lean UX, experimentation, and A/B testing. Contributions to open-source projects or a strong technical portfolio. Our Technology Stack You'll work with a modern technology ecosystem including: Frontend: React, Next.js, GraphQL, Micro-Frontends Cloud & Infrastructure: AWS, Terraform, CloudFront, S3 Engineering: TypeScript, CI/CD, GitHub Actions Testing & Quality: Jest, React Testing Library, Playwright AI & Observability: GitHub Copilot, Claude Code, New Relic While experience across our entire stack isn't required, we're looking for engineers who are passionate about building exceptional user experiences and working with modern technologies. Why Join Us? Joining Cox Automotive Europe means becoming part of a business that is investing heavily in technology, innovation, and people. You'll have the opportunity to: Create digital experiences used by customers across Europe. Work with modern front-end technologies and cloud-native platforms. Collaborate with talented engineers, designers, and product teams. Help shape engineering standards and front-end best practices. Gain hands-on experience with AI-enabled software development. Develop your career within an international technology organisation. Contribute to products that are transforming the automotive industry. Our Culture At Cox Automotive Europe, we believe great products are built by empowered teams. We're looking for individuals who are: Customer-focused and outcome-driven. Passionate about delivering exceptional user experiences. Collaborative, inclusive, and supportive. Curious, adaptable, and committed to continuous learning. Strong communicators who build trust and influence across teams. Motivated to help others grow and succeed. We value diverse perspectives and believe that inclusive teams create stronger products, better ideas, and better outcomes for our customers. Diversity, Equity & Inclusion We're committed to creating a workplace where everyone feels respected, valued, and empowered to bring their authentic selves to work. We welcome applications from all qualified individuals regardless of background, identity, or experience. Ready to Join Us? If you're passionate about building exceptional digital experiences, working with modern technologies, and helping shape the future of automotive technology, we'd love to hear from you. Apply today and help us drive the next generation of digital innovation at Cox Automotive Europe. Recruitment Agencies We are managing this recruitment directly and are not seeking agency support for this opportunity. We kindly ask that recruitment agencies refrain from submitting unsolicited CVs or candidate profiles. Any candidate information submitted without a signed supplier agreement and formal engagement from Cox Automotive Europe will not be eligible for placement fees and may be treated as a direct application. Thank you for respecting our recruitment process.