Jr/Mid Back End Engineer

Overview 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. Responsibilities Design, develop, and maintain backend services and APIs Build integrations to connect the AI agent with external communication channels Voice: integrate telephony via technologies such as LiveKit (calls, speech input / output) Messaging: integrate with WhatsApp and email systems Implement and optimize real-time communication flows using WebSockets Ensure scalability, reliability, and security of backend services Collaborate with frontend and AI engineering teams to deliver seamless multi-channel experiences Core Tech Stack Node.js Hono (or similar frameworks like Express.js) WebSockets TypeScript Postgres / Supabase (schema design, query optimization, migrations) REST APIs Skills Integration Skills (not mandatory; you can learn on the job) Twilio / LiveKit (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 mentality and adaptable in a startup environment Strong problem-solving and debugging skills Self-discipline for remote work, with openness to in-person meetups Location Must be able to attend periodic (every 6–8 weeks) 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 Ready to transform hospitality tech with us? Send us your CV! J-18808-Ljbffr

Location: Sardegna, IT

Posted Date: 10/13/2025