Principal Product Designer - Size & Fit

Finding clothes that truly fit is one of the biggest challenges in e-commerce fashion and the Size & Fit team is on a mission to address it. We create game-changing solutions that help Zalando’s 50+ million customers find the right fit through innovation, science, and by delivering great customer experiences. Our aim is to close the gap between textile manufacturers and customers because the magic happens when comprehensive fashion assortment knowledge meets deep customer understanding. Our multidisciplinary team brings together applied scientists, engineers, product managers, designers, analysts, business developers and fashion experts working across Berlin and Zurich. As a Berlin-based Principal Product Designer, this role spans across Size & Fit as well as Proposition teams. The Proposition Teams create unique experiences for specific Zalando assortments like Sports, Beauty, Kids, Recommerce, and Designer, requiring deep customer understanding to enhance category credibility. Within Size & Fit, you'll improve the customer experience by helping them find the right size and fit initially, collaborating with internal and external partners. You will drive foundational fit work, ensuring seamless product interaction, considering our assortment and customer diversity. You lead the Virtual Fitting Room experience, using your UX/UI skills to let customers try on clothes with personalized avatars. This makes online shopping more inspiring and physical-like. You will also enable customers to choose the best fit with personalized size advice. Working across disciplines and levels, your contributions will help millions confidently choose the right size, reducing returns, and contributing to a more sustainable and inclusive fashion future. This is a parental cover and will have a 1 year limited contract.

Partner closely with teams across disciplines and levels to deliver customer-centric experiences that create real impact. Shape the future innovative customer-facing experiences and elevate personalized moments across the entire customer journey. Envision new ways to use product and customer data to help customers find their perfect match. Prototype and test quickly to turn assumptions into clear decisions and translate ideas into validated solutions. Raise the bar by mentoring others, giving thoughtful feedback, and sharing your skills at community events.

Craft & Design Leadership: You bring exceptional UI/UX skills and naturally raise the quality bar within the team. Your toolkit keeps growing and already covers workshop facilitation, prototyping, user research and UX writing good practices. Problem Definition & Vision: You’re comfortable diving into uncharted, complex problem spaces and bringing clarity. You shape long-term product direction, keep success metrics in focus, and turn strategy into cohesive customer experiences. Solution Design & Impact: You know your way around mature design systems and accessibility. You experiment and iterate to create innovative, data-informed solutions that work holistically and drive impact across diverse customer audiences. Communication & Influence: You clearly articulate the “why” behind your design decisions and the “so what” in your narratives to bring others along. By keeping the customer at the center you align stakeholders at every level. Collaboration & Community Contribution: You’re a trusted partner to Product, Engineering, and Data Science, helping disciplines work better together. You actively contribute to the design community and elevate the excellence of our organization.

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; 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