About fonio We grew from $1M to $10M ARR in under 12 months and now serve 10,000+ customers. fonio is Europe's market leader for AI phone agents for SMBs. Our AI answers every call automatically, but voice is just the beginning: we're building the AI operating system for small businesses. We move fast, take ownership, give direct feedback, and avoid politics and unnecessary meetings. Join one of Europe's fastest-growing companies. Your role You shape how fonio feels to use for thousands of businesses. You own core areas of our product end-to-end: from talking to customers, to designing the flow, to shipping it with our engineers. You're a hands-on designer with high craft and a lot of autonomy. You don't wait for perfect specs. You find the problem, design the solution and move fast. What to expect • Own the design of core product areas end-to-end, in close collaboration with Product Engineering and our founders • Talk to customers regularly and turn insights into design decisions • Turn complex functionality into simple and easy to use experiences • Shape and scale our product design system • Prototype fast with AI tools (Cursor, v0, Claude and others) to get from idea to testable flow in hours, not weeks • Use analytics to measure what works, and iterate Who we're looking for • At least 5 years of experience in product design, ideally in a small, fast-moving product team (portfolio required) • Exceptional design craft: interaction detail, hierarchy, typography and motion • High autonomy: you take ownership without needing much structure • Experience with design systems and shipping features end-to-end • Product and analytics thinking: you don't design from your gut, you measure • AI-first mindset • Fluent English (any additional language is a plus, especially German (DACH is our most important market) What we offer • Competitive salary: €65,000–€90,000 • Equity - you're building this, so you should own a piece of it. • Food & drinks - lunch and dinner are on us • Relocation bonus (if you still need to move) • Equipment of your choice - whatever makes you happy. Hiring process • 15 min intro call • Case study • Skill interview with Moritz • Culture call with the founders