Founding Product Engineer

About the Role

Join the engineering team at a European AI communications company as a Founding Product Engineer. You will take end-to-end ownership of customer-focused product features, from discovery and prototyping through production, helping businesses automate phone-based interactions.

What You'll Do

• Own features from initial hypotheses through implementation, release, and iteration.
• Develop and test product ideas through rapid experiments and lightweight prototypes.
• Stay in regular contact with customers, partners, and sales colleagues to identify real needs.
• Define and implement product tracking, then use relevant metrics to guide decisions.
• Build across the stack and lead architecture and implementation choices.
• Balance pragmatic validation with long-term scalability, taking ownership to move initiatives forward.

What We're Looking For

• At least three years of product engineering experience delivering features end to end.
• Full-stack experience with Node.js, TypeScript, NestJS, and React.
• Experience owning software from architecture and implementation through production release.
• Hands-on experience in a startup environment and a strong customer-focused product mindset.
• German proficiency at B2 level or above, and fluent English for team and product communication.
• Comfort using metrics and experiments to inform product decisions.
• Experience integrating large language models or building AI-powered features is an advantage.