Senior Full Stack Developer (AI SaaS)

About the Role

Join a European AI-powered B2B SaaS team building chat and voice agents that help customers navigate complex product ranges online and in stores. You will develop the platform and integrations behind these customer-facing experiences.

What You'll Do

• Build and maintain full-stack features for an AI SaaS platform using TypeScript and NestJS.
• Integrate current LLM APIs into chat and voice agent experiences.
• Develop and support backend services and data workflows using MongoDB.
• Contribute to product features that help customers search and make decisions across complex product catalogs.

What We're Looking For

• Several years of professional experience with NestJS.
• Very strong TypeScript skills and solid MongoDB experience.
• Hands-on experience using current LLM APIs.
• Based in Europe, or able to work in a hybrid arrangement from Cologne or Hamburg.

Compensation & Benefits

Visa sponsorship is not available.

Location

Remote across Europe, with hybrid options in Cologne or Hamburg. Primary location: Cologne, Germany.