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