Product Designer

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

• Make complex functionality simple: solve complexity instead of designing it visibly

• 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

• Several years of experience as a product designer, 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

1. 15 min intro call

2. Case study

3. Skill interview with Moritz

4. Culture call with the founders