At Lighthouse, we're on a mission to revolutionize commercial strategy as hospitality's most powerful AI platform. We take the world's largest hotel data network and transform it into real-time intelligence that drives action. Our 850+ teammates across 35 countries aren't just building software—they are leveraging cutting-edge AI to help hoteliers be the first to act.

Tens of thousands of hotels across 185 countries trust Lighthouse to execute their commercial strategy, including every one of the top 15 global chains and thousands of independent hotels that consistently outperform their markets. Our shared values keep us on a collaborative path fostering a cultural and customer centric environmentPursuit of greatness: We're innovators who care deeply about our customers' success. We make every moment count by knowing what to deliver, why it matters, and how it drives Lighthouse forwardElevate each other: Collaborative, fun, and deeply committed, we work hard together to revolutionize the hospitality sector.

Job DetailsEngineeringSpain - BarcelonaFull-Time/RemoteWhat you will doYou'll join our Crawler Engineering team as a Backend Engineer focused on data acquisition.

This is a building role: you'll design and develop high-performance systems, mostly in Rust, that collect billions of data points from the web. The work sits where backend engineering meets how the web works: stacks, proxies and browser tooling. When a data source blocks an approach, you'll dig into what's happening on the wire and find another way forward.

You'll also help make our infrastructure "agent-friendly", so other teams can safely build on it with AI.Where you will have impactDesign, build and improve backend systems for data acquisition that handle close to 200 million requests a day.



Investigate hard crawler problems, test alternative approaches when one gets blocked, and turn what works into robust, reusable systems. Own the quality of your code, including code written with AI assistance: tests, observability and maintainability.

Work closely with crawler engineers, DevOps and Security to ship solutions that are secure and scalable. About our teamThe Crawler engineering team makes sure Lighthouse customers get fresh, high-quality rates, ranking and supply data. We handle close to 200 million requests a day across 200+ data sources, so the team carries a big responsibility for keeping our crawling infrastructure reliable, efficient and ahead of a web that keeps changing.

What's in it for you?

Flexible working environment: Work from home or at one of our general offices. Optional benefits through tax-free payroll deductions for food, transportation and/or nursery.

Comprehensive health insurance: High-bar, friendly, creative, and passionate colleagues. Workshops, frameworks, tools, training, and processes to realize your full potential. Who you areYou have hands on experience building, deploying and running production backend services in a cloud environment.

You're experienced with a systems language such as Rust or C/C++, or you have a strong track record in another backend language and a real drive to go deep in Rust. You have a solid grasp of how the web works under the hood: You're curious about how browsers and network stacks work internally, you're comfortable with ambiguity, and you'd rather prove a hypothesis than assume it. You're fluent in English.

Technologies you will work withRust, TypeScript/Node.js, Python, Google Cloud, Kubernetes, Prometheus, Grafana, Claude Code. Learn more about our careers and recruitment process | Our company and leadership team

📌 Backend Engineer - Data Acquisition (Barcelona)
🏢 Lighthouse Io
📍 Barcelona