Back-End Developer

6 giorni fa

Novara, Italia Ai Kosmo - Your Hotel Digital Concierge A tempo pieno

Full-time contract with flexible hoursFully 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, through email and WhatsApp.ResponsibilitiesDesign, develop, and maintain backend services and APIsBuild 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 systemsImplement and optimize real-time communication flows using WebSocketsEnsure scalability, reliability, and security of backend servicesCollaborate with frontend and AI engineering teams to deliver seamless multi-channel experiencesCore Tech StackNode.JsHono (or similar frameworks like Express.Js)WebSocketsTypeScriptPostgres/Supabase (schema design, query optimization, migrations)REST APIsIntegration 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 APIsBonus SkillsExperience or strong interest in AI/Context Engineering (OpenAI APIs, RAG systems)Docker, CI/CD pipelines, cloud servicesEvent-driven architectures (RabbitMQ, etc.)Soft SkillsFlexible mentality and adaptable in a startup environmentStrong problem-solving and debugging skillsPassion for what you doSelf-discipline for remote work, with openness to in-person meetupsLocationMust be able to attend periodic (every 6–8 weeks) in-person meetings in northern ItalyWhat We OfferSpace for fast professional growthFlexible and modern remote work environmentHands-on experience with cutting-edge technologiesHigh-impact role: your work directly shapes our productYoung, friendly, and motivated teamReady to transform hospitality tech with us?Send us your CV

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