Senior Fullstack Engineer

ABOUT THE ROLE Join a B2B AI communications SaaS team as a Senior Fullstack Engineer, building voice AI products for businesses. You will own customer-facing features from concept through deployment and help shape the product roadmap. WHAT YOU'LL DO • Build and evolve full-stack product features using NestJS, TypeScript, React, and Node.js. • Take features from discovery and prototyping through production release. • Engage with customers through support, feedback sessions, and user testing to understand their needs. • Prioritize and scope work around immediate customer value, then iterate based on feedback. • Contribute to feature prioritization and product roadmap decisions. • Ship improvements frequently while maintaining focus on reliable, customer-facing software. WHAT WE'RE LOOKING FOR • At least 5 years of full-stack engineering experience building and delivering SaaS products. • Strong hands-on experience across both backend and frontend engineering, including TypeScript, React, and Node.js; NestJS experience is preferred. • Experience owning end-to-end features, from technical and product decisions through deployment. • Experience working directly with customers and using feedback, experiments, and metrics to inform product decisions. • Native German proficiency and fluent English. • Experience with AI or LLM integrations, fast-moving product teams, or European AI and data privacy considerations is useful. COMPENSATION & BENEFITS Annual base salary: €80,000 to €120,000. Visa sponsorship is not available. LOCATION Remote within Germany.