Jr/Mid Back End Engineer

Ai Kosmo - Your Hotel Digital Concierge; Chieti; Remoto; EUR 40.000 - 60.000; Tempo pieno

Descrizione del lavoro

A fast-growing innovative startup is seeking a Backend Developer to join their remote team. Candidates will maintain and expand server infrastructure and create integrations for AI agents to operate as voice assistants through various communication channels. This role involves designing backend services, optimizing real-time communication, and collaborating with other teams. Ideal for those with experience in Node.js, TypeScript, and WebSockets, who thrive in a flexible startup environment.

Servizi

Space for fast professional growth

Flexible and modern remote work environment

Hands-on experience with cutting-edge technologies

High-impact role

Young, friendly, and motivated team

Competenze

• Experience with backend services and API development.
• Familiarity with real-time communication and WebSockets.
• Knowledge of database schema design and query optimization.

Mansioni

• Design, develop, and maintain backend services and APIs.
• Build integrations for AI agent communication channels.
• Collaborate with frontend and AI engineering teams.

Conoscenze

Node.js

WebSockets

TypeScript

Postgres

REST APIs

Strumenti

Docker

Twilio

Descrizione del lavoro

🤝 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, 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

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
• Passion for what you do
• 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!