We are an international technology scale-up in a strong growth phase, building our own product with a strong focus on Artificial Intelligence, Data and Automation. Our mission is to transform the way people invest in Real Estate by combining AI, advanced analytics and technology. Operating across multiple international markets, we are entering a key stage of growth where Artificial Intelligence will become a core pillar of both our product and engineering strategy.
We're looking for a Senior Software Engineer who thinks like an owner, not a ticket-taker. This is a cross-functional role: you'll work on complex projects across multiple teams with a high level of autonomy, taking ideas from a high-level problem statement through to production. You'll have the experience to design and defend backend architecture, along with the product mindset to understand why we're building something, not just what we're building.
Design and defend backend architecture: event-driven systems on AWS, built to be resilient, cost-aware, and scalable.




Contribute across the frontend in our React / Next.Js ecosystem when the work calls for it.
A strong backend engineer with proven Node.Js experience designing scalable, event-driven architectures and structuring well-modeled databases. AWS expertise: especially in designing scalable, event-driven cloud architectures, with a strong understanding of distributed systems, serverless patterns, APIs, messaging, observability and data architecture.
A genuine owner: you take a problem from an ambiguous idea to a shipped product and you're comfortable adapting as priorities shift with demand in a fast-growing startup.
You already use AI in your daily engineering flow and have opinions about where it helps and where it doesn't.
Fluent in Spanish and English.
Frontend: production-grade experience with React.Js/Next.Js building complex, performant UIs, components, etc. Hands-on experience building and integrating solutions on top of the HubSpot platform,

📌 Senior Software Engineer (Madrid)
🏢 Prophero
📍 Madrid