Jr/Mid Back End Engineer

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

Descrizione del lavoro

A fast-growing technology startup in Italy is seeking a Backend Developer for a fully remote position with flexible hours. You will maintain and expand the server infrastructure, integrating AI communication capabilities. Ideal candidates should have experience with Node.js, REST APIs, and database technologies. The company offers ample opportunities for professional growth and a dynamic work environment.

Servizi

Flexible work environment

Professional growth opportunities

Hands-on experience with cutting-edge technologies

Competenze

• Experience with Node.js and backend services.
• Familiarity with database schema design and query optimization.
• Ability to integrate communication technologies such as WhatsApp and email.

Mansioni

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

Conoscenze

Node.js

Postgres / Supabase

REST APIs

TypeScript

WebSockets

Strumenti

Twilio

Docker

RabbitMQ

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

• Twilio / LiveKit (voice, SMS, call routing, WhatsApp)
• Email integration (like SMTP)
• Experience designing robust webhook flows and handling external APIs
• not mandatory; you can learn on the job

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!