Senior Product Designer, Growth (d/f/m) - fixed-term contract - 18 months

As a Senior Product Designer in our Growth domain, you will shape experiences that drive user growth, engagement, and retention across Kleinanzeigen, helping millions of users stay connected, discover relevant opportunities, and actively participate in our marketplace. As part of the team, you will play a key role in bringing together AI-driven activities and relevant interactions around trading and searching. You will also shape notification experiences that help users return to Kleinanzeigen and engage with the platform in meaningful ways. You’ll own design across the entire product development lifecycle: From early discovery and problem framing to concept development, prototyping, delivery, and continuous iteration. Working closely with product managers, engineers, researchers, and data specialists, you’ll create intuitive, personalised, and impactful experiences that support sustainable user growth. As part of the broader Product Design team, you’ll regularly exchange ideas, participate in design reviews, and contribute to a strong, collaborative design culture across the organisation. The Growth domain focuses on attracting, engaging, and retaining users, ensuring Kleinanzeigen remains relevant throughout their buying and selling journeys. Your work will directly influence how users discover opportunities, return to the platform, and stay active, strengthening user retention, marketplace activity, and long-term growth. This is a hybrid role that combines remote work with regular presence at our Berlin-Charlottenburg office. What you bringSeveral years of experience as a Product Designer, UX/UI Designer, or Interaction Designer, ideally working on consumer-facing digital products in an agile environment. Strong conceptual and interaction design skills, with the ability to turn complex systems, including AI-powered features, into simple, intuitive, and trustworthy user experiences. Hands-on experience using AI-powered design tools to accelerate ideation, explore concepts, create interactive prototypes, and iterate quickly. Curiosity and willingness to experiment with emerging AI technologies are essential. A strong eye for visual design and experience working with design systems, combined with the ability to translate ideas into functional prototypes or make smaller improvements directly in code using AI-assisted development tools. Experience with user research, usability testing, and data-informed experimentation, using qualitative and quantitative insights to validate solutions and drive measurable improvements in engagement and retention. A collaborative, hands-on mindset, comfortable sharing work early, embracing feedback, and working closely with Product Managers, Engineers, Researchers, and other stakeholders. Ability to balance user needs, business goals, and technical constraints while adapting to evolving technologies, changing priorities, and new ways of working. Fluency in German and English, enabling effective cross-functional collaboration and direct communication with users during research and testing. What you will doShape the future of Kleinanzeigen, designing intuitive experiences that connect users with relevant activities across buying, selling, and searching, driving engagement and retention. Lead user discovery and experimentation, combining qualitative research, behavioural data, and AI-assisted analysis to identify user needs, uncover opportunities, and validate design hypotheses. Leverage AI-powered design tools and workflows to accelerate ideation, explore concepts, build interactive prototypes, and rapidly test and iterate on solutions, from early exploration to production-ready designs, including implementing smaller improvements directly in code. Design intelligent, personalised, and trustworthy user experiences, including AI-driven interactions and notification journeys, while ensuring transparency, user control, accessibility, and consistency. Partner closely with Product Managers, Engineers, Researchers, and Data specialists to turn insights into measurable improvements, using experimentation, usability testing, and growth metrics to continuously optimise the user experience. Contribute to scalable design systems and a collaborative design culture, sharing knowledge, exploring emerging AI design practices, and helping evolve how we design and build products at Kleinanzeigen. 💚 Your benefits at Kleinanzeigen At Kleinanzeigen, we care about our people — their wellbeing, growth, and life beyond work. Our benefits are designed to support you holistically, giving you flexibility and opportunities to thrive. ✨ Flexibility Flexible working time (hybrid) 20 days “work from anywhere” Paid additional parental leave for both parents Extra paid days off for special occasions (e.g. your wedding or a move) ❤️🩹 Wellbeing & Support Confidential support & coaching for you and your loved ones Annual company sports events Pension and life insurance 📚 Growth & Development Personal development budget Learning opportunities to grow your skills and career 🛍️ Perks & Everyday benefits Corporate benefits and exclusive discounts An attractive referral program Transportation allowance Free shipping on Kleinanzeigen Direktkauf Kleinanzeigen is an equal opportunity employer that values diversity and inclusion. We welcome people of all backgrounds, races, religions, colours, national origins, gender identities, sexual orientation, ages, marital status, or disability. If this role sparks your interest but you’re not sure you meet every single requirement, we’d still love to hear from you anyway.