Senior Backend Engineer - Node.js AI Chat Platform (Hybrid Madrid)
Location
madrid, comunidad de madrid
Job Type
Full-time
Category
Informática y tecnología
Posted
June 08, 2026
A technology company in Madrid is seeking an experienced Senior Full Stack Developer to join its team. You'll take ownership of the backend architecture for a sophisticated AI chat platform, integrating multiple AI providers. The role requires expertise in Node.js and database optimization with MongoDB and PostgreSQL. This is a hybrid position, requiring onsite presence 2-3 days per week. A competitive B2B contract awaits with opportunities for professional growth.
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