3+ years experience in Conversion Optimization, Growth Marketing, or E-commerce Strong understanding of A/B testing, UX optimization, and data-driven work Experience with tools like GA4, Hotjar, Klaviyo, Shopify, Google Optimize, VWO Basic technical understanding (Shopify, tagging, data structures) Structured, analytical approach with focus on impact and ROI Ability to collaborate cross-functionally Very good German and English skills