Full-time contract with flexible hours &##Fully remote (with recurring meeting/retreats in northern Italy) We are a fast-growing, innovative startup looking for a Backend Developer (all levels) to join our team and help us build AI agents. Your mission: maintain/expand our server infrastructure and create integrations that make our AI agent accessible as a voice assistant, and through email and WhatsApp. Voice: integrate telephony via technologies such as LiveKit (calls, speech input/output)~ Collaborate with frontend and AI engineering teams to deliver seamless multi-channel experiences js js) TypeScript Twilio/LiveKit (voice, SMS, call routing, WhatsApp) Experience or strong interest in AI/Context Engineering (OpenAI APIs, RAG systems) Docker, CI/CD pipelines, cloud services Flexible mentality and adaptable in a startup environment Self-discipline for remote work, with openness to in-person meetups Flexible and modern remote work environment