Senior Frontend Engineer - Product

Headquarters: Portugal The Engineering (Tech) Team is responsible for all Feedzai product development. Together with Product Management and Data Science, we build the next generation of tools to catch fraud in real-time with a machine learning first approach. Formed by engineers and managed by engineers, at Feedzai, you will find one of the most talented teams out there, from junior to senior engineers. We are fast-paced and provide a safe, open, and collaborative environment that encourages us to lean in, try new things and discover our potential with continuous learning for everyone. While building the best value for our customers, you will work with a wide range of technical challenges. Such as building distributed systems that need to operate 24/7 and ultra-low latencies, solving UI/UX problems to help fraud analysts to fight fraud more efficiently. In addition, designing extensive databases from relational, NoSQL and graphs, validate and develop new data science techniques and algorithms. You: We’re looking for a Frontend Engineer to join the Studio team , the team responsible for maintaining and evolving the micro-frontend project that hosts the different components of the Feedzai product. Studio is the backbone of our product integration, ensuring a seamless user experience, performance, and cohesion across our entire product suite. Your mission goes beyond building features; you will be building the platform that hosts them. You will treat Studio as an internal product, focusing on scalability, adoption, and creating a world-class developer experience for your colleagues. The Studio Team: The Studio Team builds the foundation that allows Feedzai to disrupt the financial crime industry with speed and consistency. We view our fellow engineers and product teams as our primary customers . By providing a robust, cloud-first, and flexible micro-frontend host , we enable product teams to focus on solving complex financial risk problems rather than reinventing application infrastructure. Being part of this team means you value precision, empathy for the developer experience, and the power of shared standards. Your Day to Day: Architect & Build: Develop a highly scalable and performant micro-frontend architecture that serves as the host environment for all Feedzai products, ensuring distinct applications work in harmony. Bridge Platform & Products: Collaborate closely with Product Engineering teams to translate their standalone modules into a unified application, ensuring seamless integration and routing. Empower Developers: Write clear, comprehensive documentation and create tooling that makes it easy for product teams to plug their micro-frontends into the Studio shell. Quality Assurance: Be the guardian of platform standards. Implement rigorous testing strategies to ensure zero regressions in the host environment and shared dependencies. Support & Advocate: Act as a consultant for product teams, helping them solve complex integration issues and gathering feedback to iterate on the Studio platform. Strategic Evolution: Have an active role in decisions regarding the frontend architecture and the long-term roadmap of the Studio project. You Have & You Know-how: BSc/MSc degree in Computer Science, or a similar technical degree. 4+ years of experience in modern JavaScript (ES6+), HTML5, and advanced architecture patterns. Deep experience with React and its ecosystem. Strong proficiency in TypeScript Demonstrated experience architecting or contributing to Micro-Frontend architectures Experience with testing frameworks (Jest, React Testing Library) and integration testing tools (e.g., Cypress, Playwright). Experience with build tools (Webpack/Vite/Rollup), and release lifecycles . A "Service Mindset" or "Platform Mindset" —you enjoy helping other developers succeed. Solid knowledge of Web Accessibility standards (WCAG) is a plus The Product Team builds our product to disrupt the financial crime industry from a data-led approach. We