# Sebastian Misch ## Headline CTO @ Stay Cold Apparel | Scaling DTC Brands to 8–9 Figures on Shopify Plus | SaaS Builder | 28+ Years in Tech & E-Commerce ## Location Cologne Bonn Region ## Current Role CTO — Stay Cold Apparel ## Education (Top) University of Applied Sciences Dortmund / Cologne Diploma Information Technology (AS), IT & Business Administration 2001 – 2006 --- ## About I build systems that scale e-commerce brands. For the past 2+ years as CTO at Stay Cold Apparel, I’ve been responsible for transforming the tech, data, and growth infrastructure of a fast-scaling DTC brand — moving from 7 to 8 figures, with a clear path toward 9. The focus was never just tech. It was: - Conversion rate optimization at scale - Data-driven decision making (A/B testing, surveys, behavioral analysis) - Custom Shopify Plus architecture - Automation across marketing and operations - Sales psychology applied to UX and lifecycle - Retention and loyalty systems Alongside that, I’ve been running Nerds of all Trades GmbH since 2016 — building, scaling, and advising digital businesses. One of those was Uhrwerk Berlin, a watch brand I founded and scaled to 100,000+ units sold. Today, we focus on: - E-commerce consulting for scaling brands - Building SaaS products for DTC (currently: audience growth tools) Before that, I spent years in senior and principal engineering roles at companies like ImmobilienScout, RTL, and others — building large-scale systems and leading frontend architecture. ### What I bring - 28+ years in software and internet businesses - Deep understanding of both engineering and revenue - Proven ability to scale systems and organizations - Strong bias toward execution and measurable outcomes ### What I’m interested in - Working with brands doing €10M–€100M+ aiming for the next level - SaaS collaborations in the e-commerce ecosystem - High-impact projects where tech directly drives revenue Not actively looking for roles. Open to relevant conversations. ---