Junior or Medior AI Engineer

HelloPrint is rebuilding the entire platform: new frontend, new pricing engine, new content engine, new product engine, everything ready for an agentic future. No one on the team writes code manually for what these systems handle. You'll work inside this rebuild, under the direction of our founding team (Hans, CEO, and Michael, CIO/Chief AI Officer), executing on high-leverage AI problems with real commercial impact, visible immediately in revenue or cost. There's no management layer between you and the outcome. You build, you ship, you measure, you move to the next problem. What you will build: The opportunity surface is large: 14 markets, 600,000 customers, a platform being rebuilt in parallel across four core engines. You'll work on problems from areas like: • Dynamic pricing and margin optimization across markets. • Agentic procurement: supplier selection, ordering, quality management. • Customer journey automation from configuration to post-delivery. • Intelligent content and SEO infrastructure at platform scale. • Predictive demand and inventory across the supplier network. • Internal tooling that multiplies the output of every team. Before you read further HelloPri nt is on a mission to become the world's leading infrastructure for customizable printed products. From our offices in Rotterdam and Valencia, 100+ professionals from 20+ nationalities are building an AI-first company that scales output faster than headcount. We're at EUR 100M revenue and aiming to disrupt a trillion-dollar industry. Every hire we make needs to help get us there. • Commercial instinct first, engineering second. You think about what something is worth before you think about how to build it. • Full-time in Rotterdam . Five days a week, in the building where the transformation is happening. • You have been building since before it was a career. Side projects, tools, systems nobody asked for. The obsession came first. • You ship continuously. You ship fast and you ship real systems. Not prototypes, not demos. • You are more than just an engineer. You understand product decisions, user impact, and design tradeoffs. You do not need a PM to translate the business problem for you.