Overview Founding engineer role shaping a new Factorial spinoff focused on making AI central to workflow management. You’ll own big initiatives, define quarterly roadmaps, and work closely with cross-functional teams to ship usable AI features. The role blends fast execution with thoughtful, reliable design in a cloud-native stack. You’ll join a scrappy, highly capable team that values impact, mentorship, and continuous learning. Compensaciones / Ventajas * Alan private health insurance * Wellhub gym benefits * Cobee for expenses * Language classes * Breakfast in the office and organic fruit * Pet-friendly office Responsabilidades * Own large initiatives and quarterly roadmaps * Participate in customer calls to understand pains and needs * Review code daily and provide feedback across the team * Mentor junior engineers and share knowledge * Learn from and contribute to performance and architecture discussions * Collaborate to build AI-integrated features in Ruby on Rails + React/TypeScript Requisitos principales * 4+ years in software engineering * Experience shipping AI-powered features * Proficiency with Ruby on Rails backend and React frontend * Ability to explain complex technical decisions to non-technical audiences * Entrepreneurial mindset and experience building from scratch * Comfort with probabilistic systems and integrating AI models into scalable environments * Ability to translate non-deterministic outputs into actionable guidance * Collaborative mindset * Ability to explain technical concepts clearly * Problem-solving under uncertainty * Ruby on Rails * React * TypeScript

📌 AI Software Developer - Founding role (Barcelona)
🏢 Factorial Hr
📍 Barcelona