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.