Co-Founder CTO (Berlin / Hybrid) - Build the Future of AI-Driven Financial Ops I'm supporting the Founder of a fast-moving, early-stage tech company in Berlin who has built something genuinely exciting - and is now looking for the right technical co-founder to take it from "working product with paying customers" to a category-defining platform. This is one of those rare opportunities where the timing is perfect: - There's a live product. - Paying customers. - Strong pull from the market. - A founder who has proven the technical feasibility himself - but knows it's time to bring in someone exceptional to own the architecture, technology, and team. If you're an experienced CTO or Technical Founder who loves building from the ground up, staying close to customers, iterating fast, and shaping the long-term technical vision - this is one worth looking at. The Opportunity You'd be joining at true co-founder stage, working shoulder-to-shoulder with a commercially strong, strategically minded Founder who moves fast, listens, and wants a genuine partner - not a hired gun. The product sits at the intersection of AI, financial operations, workflows, and automation. Customers love what they're seeing, and the roadmap is driven directly by real-world use cases that need solving now. You'll have full freedom to shape: the architecture (nothing is rigid yet - you'll define it) the engineering culture the hiring strategy AI/ML integration choices and ultimately, the technical direction of the company If you're motivated by autonomy, ownership, and the chance to build something meaningful with a Founder who genuinely values the technical voice - you'll thrive here. The Person We're Looking For You should be someone who: Has deep Computer Science fundamentals Has built and scaled systems as a CTO, Tech Founder, or early engineering leader Isn't afraid to be hands-on in the early months Loves moving quickly and keeping things lean Enjoys speaking with customers and shaping product direction Has a strong "bias for action" and thrives in ambiguity Wants to build a small, exceptional engineering team Feels energised by early-stage ownership, not overwhelmed by it Bonus: some German language capability (or willingness to learn), given a portion of the customer base operates within German financial/legal frameworks. Why this might resonate with you This isn't a turnaround role. This isn't a corporate CTO role. This is creation. You'll be building on top of real traction, real customers, and real demand - not hypothetical slides. You'll partner with a Founder who has the commercial side covered and wants a technical equal who can drive speed, quality, and long-term thinking. If you've been waiting for the right early-stage co-founder role - the kind you don't see advertised often - this is it. Interested? If you're a technical founder/CTO who enjoys building fast, staying close to customers, creating clarity out of chaos, and owning the full technical journey - I'd love to speak with you.