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. COMPENSATION & BENEFITS Annual salary range: €80,000 to €120,000. Visa sponsorship is not available. LOCATION Remote, Germany.