Senior Fullstack Engineer

About the Role

Join the product engineering team at a seed-stage B2B AI communications startup. You will own customer-facing features from discovery through deployment, helping shape a voice AI product through close customer collaboration and rapid iteration.

What You'll Do

• Build and evolve the platform using TypeScript, NestJS, Node.js, and React.
• Own features from ideas and prototypes through production release.
• Speak with customers, gather feedback, and participate in support and user testing.
• Break down opportunities into valuable, practical releases and iterate based on feedback.
• Contribute to feature prioritization and product roadmap decisions.
• Use product metrics and experiments to inform decisions and validate ideas.

What We're Looking For

• At least 5 years of fullstack engineering experience delivering end-to-end features for SaaS products.
• Production experience with TypeScript, React, and Node.js, with NestJS experience preferred.
• Strong frontend and backend skills, including experience taking customer-facing applications from architecture through release.
• Native German proficiency and fluent English.
• A customer-focused, pragmatic approach to product discovery, prioritization, and rapid delivery.
• Experience integrating LLMs into applications is helpful, as is familiarity with European privacy and AI regulations.