Senior Fullstack Engineer

About the Role We are seeking a Senior Fullstack Engineer to own end-to-end feature delivery in a remote-first, high-growth team building an AI powered German language phone assistant for European businesses. What You'll Do Own features from ideation through architecture, implementation, and release. Engage with customers, partners, and Sales to surface real pain points. Lead product discovery with hypotheses and quick experiments. Instrument metrics to enable data driven decisions in your area. Build pragmatic, scalable software balancing value and maintainability. Prefer asynchronous communication and ship with minimal meetings. Work remotely with CET overlap or from a partner office as needed. What We're Looking For 5+ years of full stack engineering delivering end to end web features. Strong experience with Node.js, TypeScript, NestJS and React; experience with integrating LLMs is a plus. Native German proficiency with fluent English for team collaboration. Product minded with ability to measure success by customer value and outcomes. Experience with product discovery, forming hypotheses, and validating them quickly. Comfort owning tracking, analytics, and data to support product decisions. Experience in a high growth startup environment and familiarity with GDPR/EU AI considerations. Compensation & Benefits Salary range: 80,000-120,000 EUR annually Visa sponsorship: not available Location Remote work with CET overlap; primary location in Germany; option to work from a partner office as needed.