THE ROLE AND THE TEAM The ZEOS B2B Platform is the core engine enabling our partners to seamlessly integrate and scale within the Zalando ecosystem. As a Senior Frontend Engineer, you will be a key contributor to our partner-facing ecosystem, working either on our central Portal, specialized Portal Applications, or within the Platform Integration team. We provide a holistic, API-first environment that empowers partners to manage their business with speed and flexibility. In this role, you will help shape the future of our web architecture, moving beyond simple interfaces to build complex, modular systems. You will work in an agile, cross-functional team of engineers and product managers to create high-performance applications that serve as the primary interface between ZEOS and the global market. At ZEOS, seniority means more than just writing code; it means taking ownership of the entire lifecycle, mentoring peers, and ensuring our frontend landscape is scalable, secure, and user-centric. INCLUSIVE BY DESIGN If you think you have what it takes, we encourage you to apply even if you don't meet every single requirement. You may just be the right candidate for this or other roles! At Zalando, our vision is to be the leading pan-European ecosystem for fashion and lifestyle e-commerce – one that thrives on diversity and is truly inclusive by design. We believe that diverse teams fuel innovation and creativity, and we actively seek out talent from all backgrounds. We actively seek to reduce bias in our hiring and employment processes, focusing on your qualifications, skills, and contributions. To support this, we kindly ask that you refrain from including personal details such as your photo, age, or marital status in your CV, ensuring a fair and equitable evaluation based solely on your abilities and potential. We are committed to providing an exceptional and accessible candidate experience for everyone. If you require any accommodations to support you throughout the hiring process, please let us know – we are here to assist you. Discover more about our commitment to creating a diverse and inclusive workplace: https://jobs.zalando.com/en/our-culture/diversity-and-inclusion WHAT WE’D LOVE YOU TO DO (AND LOVE DOING) Build & Scale: Design and develop high-quality, responsive web applications using React and TypeScript, ensuring they meet the needs of ZEOS partners and internal teams. Master the Architecture: Contribute to the evolution of our Micro Frontend (MFE) and SPA landscape, focusing on modularity, performance, and seamless integration. Own the Lifecycle: Champion the "You Write It, You Run It" philosophy by owning the full development cycle—from initial architectural design and API contract discussions to testing, deployment, and production monitoring. Drive Operational Excellence: Build and maintain robust CI/CD pipelines and leverage AWS/Kubernetes environments to ensure our applications are resilient and highly available. Collaborate & Mentor: Actively participate in code reviews and pair programming, fostering a culture of high code quality and knowledge sharing within your team. Bridge Design & Tech: Work closely with designers and product managers to implement our Design System (DS), ensuring UI/UX consistency and technical feasibility across the portal ecosystem. WE'D LOVE TO MEET YOU IF Frontend Expert: You are highly proficient in TypeScript and React, with deep knowledge of modern build tools like Webpack and the Node.js ecosystem. Check our Tech Radar for more information on the technologies we use at Zalando. Architectural Mindset: You have practical experience with Micro Frontend (MFE) architectures and understand how to manage state and routing in complex, distributed frontend environments. Security & Auth Savvy: You have a solid understanding of web security and experience implementing modern authentication flows, specifically Okta or OpenID Connect. Cloud & DevOps Familiarity: You are comfortable working with AWS and Kubernetes and believe that automated testing and CI/CD are non-negotiable parts of the development process. Agile Professional: You thrive in agile settings, taking a proactive role in sprint ceremonies, refining requirements, and navigating technical uncertainty with a solution-oriented mindset. Strong Communicator: You possess excellent English skills and the ability to explain complex technical trade-offs to both technical and non-technical stakeholders. Continuous Learner: You stay up-to-date with current trends in web services and software design, always looking for ways to improve our tech stack and developer experience. OUR OFFER Zalando provides a range of benefits, here’s an overview of what you can expect. Ask your Talent Acquisition Partner to learn more about what we offer. 27 days of holiday a year to start for full-time employees (+1 day for every calendar year up to 30 days) 2 paid volunteering days a year Hybrid working model with up to 60% remote per week, actual practice is up to each team to best support their collaboration Work from abroad for up to 30 working days a year Employee shares program 40% off fashion and beauty products sold and shipped by Zalando, 30% off Lounge by Zalando, discounts from external partners Relocation assistance available (subject to prior agreement) Family services, including counseling and support Health and wellbeing options (including Wellhub, formerly Gympass) Mental health support and coaching available Drive your development through our training platform and biannual peer-to-peer review