Senior AI Engineer

About HostAI
HostAI is the conversational AI platform for housing and hospitality. Our AI agents automate communications workflows for operators to increase conversions, reduce costs, and ensure customer success. Our agents automate messaging, handle phone calls, and manage tasks, all from one platform that seamlessly integrates with core housing and hospitality systems.

**Role: Senior AI Engineer (Europe)**
We seek a motivated and ambitious AI Engineer with hands-on experience building production-grade agentic AI systems. You’ll work directly with Lodovico (Founding AI Engineer) and Punn (CTO) to refine existing AI workflows build net-new functionality. This includes:

1. Building new AI features – designing and implementing agentic systems that handle real-world, multi-step tasks.
2. Improving current AI workflows – increasing visibility through robust monitoring, logging, and alerting.
3. Validation & Testing – introducing thorough unit tests, validation datasets, and performance benchmarks to ensure reliability.
4. Model & Data Pipeline Ownership – from integrating external data sources to fine-tuning large language models and integrating them into our platform.

You’ll have ownership over the entire AI lifecycle—from ideation, experimentation, and development to deployment in production.

Who You Are

• You have experience with building and shipping AI systems at scale, ideally using modern LLM-based techniques.
• You thrive in a small, fast-moving startup environment, where you can take on significant responsibility.
• You care deeply about crafting solutions that solve real customer problems.
• You’re excited about working with a tight-knit team (both the CTO and fellow engineers) on cutting-edge AI.
• You have a track record of achievement and initiative, with the drive to see tough projects through to completion.
• You’re based in Europe (or can easily align with Central European time zones).

What You’ll Do

• End-to-End AI Development: Research and prototype advanced agentic AI, then turn prototypes into robust production services.
• Monitoring & Analytics: Implement metrics, dashboards, and alerting to track AI performance and spot issues early.
• Testing & Validation: Develop test frameworks (unit, integration) and create validation datasets for continuous evaluation of AI workflows.
• Collaborative Architecture: Work closely with our backend engineers to integrate AI modules with the broader platform (Inbox, Workflows, Escalation Center, etc.).
• Scaling: Ensure our AI infrastructure is built to handle growing data volumes and real-time interactions with minimal latency.

Compensation & Benefits

• Competitive Salary: €60k–€120k (depending on experience).
• Opportunity to own critical AI infrastructure in a fast-growing product.
• High-impact role with day-one ownership and the freedom to influence both architecture and product direction.

Interview Process

• Initial Application: Short Video (1 minute): Introduce yourself and why you’re a strong fit.
• CV + Links (GitHub, portfolio).
• Brief Written Response: “What is the most difficult problem you’ve solved?”
• First Call (20 min) Fit assessment with the founders to understand your experience and goals.
• Design Discussion (45 min) Talk through an ambiguous AI-related problem we’re facing. Discuss potential solutions and tradeoffs.
• Technical Interview (45 min) A coding challenge focused on real-world AI/ML or data pipeline scenarios.
• On-site Work Trial (1–2 days in Milan) Spend a few days with the team (travel covered), outlining a potential AI feature and deploying a simple version to production.
• Decision & Offer

We'd love to hear from you if you’re passionate about building real-world AI that seamlessly automates real estate and hospitality communication and tasks.