Senior Frontend Engineer - Identity

About the team: As a Senior Frontend Engineer in the Identity team, you will be working on providing best-in-class authentication experiences and account protection for millions of users globally, as well as central services that enable teams and products across SumUp. We're looking for someone who is adaptable, proactive, and ready to take ownership. Your primary focus will be on frontend development in TypeScript using React / Next.js, while forming the bridge to our backend development As part of a team with a broad scope, you’ll group with other engineers around and contribute to changing initiatives. Within those initiatives, you will get the chance to take ownership and drive topics end-to-end, from the collection of requirements and designing the solution, to orchestrating the rollout and communication with stakeholders. We are a cross-functional and truly engineering-driven team. Expect to work with a talented and motivated team on impactful and far-reaching projects. As a team, we set a high bar in engineering and continuously strive to raise it. We keep our processes lean to make us more effective and adaptable. Personal fit is important to us. We have a strong team-first mentality and believe in acting as a cohesive unit beyond just the technical level – join us! What you'll do : Take ownership of frontend development within the team, while helping to design and build clean and reliable APIs on the backend that serve the frontends. Closely align with our Product Designers and Mobile Engineers, creating a tight feedback loop. Employ and contribute to our internal Design System for a coherent experience across platforms. Create secure, user-friendly self-service features that empower our users to manage their accounts and contact preferences with confidence. Work with a talented distributed team that values collaboration, learning, and continuous improvement. Enjoy your work! We are looking for someone to be paid to do what they love. You’ll be great for this role if you have: Professional frontend development experience with Typescript and React. Prior experience with fullstack frameworks like Next.js would be helpful Backend development experience, focussing on API development Excitement for security and reliability topics. Experience with authentication and authorization technologies (e.g. OAuth, Multi-Factor Authentication) would be nice to have A flexible mindset and the ability to adapt quickly in a fast-moving environment and navigate complex domains. You are a quick learner and have a proven ability to pick up new skills and concepts swiftly A structured, proactive way of working. You enjoy working independently but also effectively collaborate with your cross-functional team and other teams A natural drive to improve things—you're always looking to make systems and processes better. You strive for great solutions, but also know when to be pragmatic Confidence in asking for help or using available tools (like search engines or AI assistants) when something is beyond your grasp Strong communication skills in English, both spoken and written. As part of a globally distributed team, clear and respectful communication is essential Why you should join SumUp: 🌍 Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our Berlin office. This involves an office-first setup 🧑‍🔬 We take learning and experimentation seriously with Hack Days every second Friday, and entire global Hack Weeks . 🌈 Commitment to Diversity and Inclusion: Be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced 📚 A dedicated annual LD budget of €2,000 for attending conferences and/or advancing your career through further education 🚀 Enrolment onto our VSOP program: You will own a stake in SumUp’s future success 💶 A corporate pension scheme where we m ... (truncated, view full listing at source)