Being part of the UX Division, you'll be an integral team member of our specialized CRO Unit. This unit supports product owners across all platforms in making better - data-driven - decisions through quantitative and qualitative testing. Key Responsibilities: Leading the design, planning, and execution of A/B tests to identify conversion lift opportunities across platforms and generate business value. Developing and operationalizing hypotheses, translating them into testable concepts, and working closely with designers and developers using wireframes/mockups. Managing and prioritizing the testing backlog based on business value. Collaborating with the design team to plan and support qualitative UX research. Providing strategic consulting to product teams, fostering a culture of experimentation and optimization. Managing international testing initiatives and actively communicating with international markets. Analyzing, interpreting, and reporting of A/B test results, ensuring statistical validity and translating outcomes into clear, data-driven recommendations for stakeholders and decision-makers. Following the latest market trends and customer behavior to identify new opportunities and develop impactful test concepts. Key Requirements: Bachelor’s / Master’s degree in Marketing, Business Administration, Economics, Psychology, Data Science, or a related field. Advanced knowledge in statistics, data analysis, and experimental design. Relevant experience in digital environments (e.g. as a Testing Manager, Product Owner, Analyst, or Conversion Specialist) – we value diverse career paths. Experience with A/B testing and analytics tools (e.g., Optimizely, Google Analytics, Mixpanel, Hotjar – or similar tools; we care more about your thinking than specific platforms). Understanding of both app and web ecosystems; experience with server-side A/B testing A structured, data-informed approach to decision-making, with a knack for breaking down complex problems into actionable experiments. Strong communication skills, including the ability to explain testing insights to varied audiences across teams and countries. Experience working in agile environments and managing multiple projects simultaneously. You’re fluent in English (written and spoken); German is a plus but not required.