We're looking for a Full Stack Engineer for one of our clients who enjoys building new products from the ground up and is eager to help shape AI tooling for the mobility industry. * Work across the full stack to solve complex problems using incomplete and messy data * Design and evolve canonical data models * Build pipelines to handle real-world data inputs * Define and implement methods to resolve conflicting data * Build and orchestrate agents that reason over data and take action * Design agent behavior, including failure and recovery processes * Create outputs that are explainable and auditable * Ship features from idea through to production * Help shape product direction, not just implement technical decisions * Strong full-stack engineering skills (tech stack experience is flexible) * Comfortable working with ambiguity and messy,



inconsistent data * Ability to take problems from concept to shipped solution * Product-oriented mindset, focused on delivering outcomes * Open to forming and revising strong opinions as the project evolves * Demonstrated ability to think creatively and critically about what you build * Ruby on Rails (API) * React / Next.js * Python (data and AI orchestration) * Competitive salary: €40,000 to €80,000 * Meaningful equity * Adaptable working (3 days in office) * Barcelona HQ with beachfront location * Generous holiday allowance plus public holidays * Team off-sites in exciting locations

📌 Full-Stack AI Tooling Engineer — Product Vision (Cataluña)
🏢 Joppy
📍 Cataluña