Overview Full-time contract with flexible hours. Fully remote (with one monthly in-person meeting in northern Italy). Role and Mission 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: create integrations that make our AI agent accessible as a voice assistant (via Twilio), and through email and WhatsApp. Responsibilities Design, develop, and maintain backend services and APIs Build integrations to connect the AI agent with external communication channels Voice: integrate telephony via Twilio (calls, speech input / output) Messaging: integrate with WhatsApp and email systems Implement and optimize real-time communication flows using Web Sockets Ensure scalability, reliability, and security of backend services Collaborate with frontend and AI engineering teams to deliver seamless multi-channel experiences Requirements Core Tech Stack Node.js, Hono (or similar frameworks like Express.js), Web Sockets, TypeScript, Postgres (schema design, query optimization, migrations), REST APIs Integration Skills Twilio (voice, SMS, call routing, WhatsApp), email integration (like SMTP), experience designing robust webhook flows and handling external APIs Bonus Skills Experience or strong interest in AI / Context Engineering (OpenAI APIs, RAG systems), Docker, CI / CD pipelines, cloud services, event-driven architectures (RabbitMQ, etc.) Soft Skills Flexible and adaptable in a startup environment, strong problem-solving and debugging skills, passion for backend development and integrations, self-discipline for remote work with openness to regular in-person meetings Location Must be able to attend monthly in-person meetings in northern Italy What We Offer Space for fast professional growth Flexible and modern remote work environment Hands-on experience with cutting-edge technologies High-impact role: your work directly shapes our product Young, friendly, and motivated team How to Apply Ready to transform hospitality tech with us? Send us your CV! J-18808-Ljbffr