Agent Engineer

Welcome to Arbio – where AI meets hospitality, and every day is a step toward redefining short-term rentals across Europe.

Arbio is where AI meets hospitality. We're re-engineering the short-term rental industry through automation, intelligence, and scalable systems. Our goal is simple: deliver better guest experiences and operational efficiency through agentic technology that works.

We are building the AI backend that powers everything from property management to guest communication - a system of interconnected agents that reason, act, and learn.

As an Agent Engineer, you will design, build, and run the systems that make agents possible.

This role sits at the intersection of software engineering, system design, and security - part backend engineer, part systems thinker, and part AI operator. You will architect and maintain the infrastructure that allows multiple agents to run concurrently, manage memory and knowledge, stay context-aware, and operate safely within organizational boundaries.

What you will do:

• Design and build agent runtimes that handle orchestration, state, and concurrency
• Implement memory and knowledge systems that support retrieval, reasoning, and context persistence
• Integrate MCPs and external APIs, ensuring safe and efficient tool execution
• Design secure data boundaries and enforce RBAC and privacy across agent requests
• Develop evaluation and monitoring frameworks to measure usefulness, latency, cost, and accuracy
• Optimize performance and reliability across multi-agent systems running on cloud infrastructure

What you will add to our Crew:

• Strong background in TypeScript, NodeJS, and modern backend architecture
• Experience with LangGraph, LangChain, or similar orchestration frameworks
• Understanding of event-driven or distributed systems (Pub/Sub, SQS, Kafka, etc.)
• Familiarity with vector databases (MongoDB Atlas, Pinecone, etc.) and retrieval-augmented systems
• Knowledge of authentication, authorization, and secure API design
• Curiosity about LLMs, reasoning agents, and multi-agent design patterns
• You believe AI tools like Cursor and Claude make engineers radically more productive

Bonus Points:

• Have experience with knowledge graphs
• Familiarity with AI observability stacks
• Knowledge of Access Control methods (RBAC and OrBAC)

Why you will love this

• Build next-generation agentic infrastructure from the ground up
• Work in a high-ownership, high-impact role in a team who care about velocity and owning projects end-to-end
• You believe AI tools like Cursor or Claude Code make engineers radically more productive
• Work directly with a small, focused team that moves fast and ships

You may not be a good fit if…

• You prefer predictable routines over dynamic challenges
• You prefer fully remote work
• You need well-defined requirements and struggle in high-ambiguity environments
• You prefer large teams with specialized roles over high-ownership positions

Our current benefits

• Work Environment & Support: Flexible working hours with a flexible work set-up combining office & remote work
• Food & Beverage: Free drinks, fruit and veggie baskets, beer, and pizza after All Hands
• Sport: Subsidized Qualitrain Subscription (includes: unlimited Beat81 classes, Holmes Place, Yoga studios, Boulder Halls, etc.
• Mental Well-being: Access to our mental health platform offering regular 1o1 sessions with coaches, trainers and psychologists
• Travelling: Free yearly stay in one of our apartments of your choice
• Tech: Possibility to choose between Windows Lenovo or Macbook
• Culture: Yearly Company Offsites, regular team events, Christmas party, summer party, budget for your birthday

What joining the Arbio Squad means for you

You will be part of a dynamic team of top-tier professionals from every domain, all united by a relentless drive. We are dedicated to nurturing and pushing each of our team members to unleash the best version of their professional selves. We believe in a culture of trusted ownership, caring meritocracy, and constructive feedback where we elevate each other while constantly challenging the status quo. Join a dynamic, young company with an entrepreneurial culture operating at lightning speed — with eyes set on global horizons

Join us:

If you are the kind of engineer who enjoys building systems that think, not just code that runs, this role is for you.