Overview
In this role you will help build and scale Factorial’s AI-driven Finance domain, transforming how invoices, payments, and analytics are handled. You’ll own end-to-end impact, from problem definition to measuring real outcomes, not just coding. You’ll contribute to an AI platform that automates core finance workflows and supports cross-functional teams. This is a fast-moving, hands-on role focused on delivering tangible value through probabilistic, AI-enabled features.
Compensaciones / Incentivos
Alan private health insurance
Wellhub gym access
Cobee expense management
Language classes
Breakfast in the office and organic fruit
Food discounts with Nora
Responsabilidades
Design system architectures for multi-agent AI features
Write high-level prompts to guide multi-agent code generation
Review and validate AI-generated outputs for security, scalability, and structure
Orchestrate parallel AI agents to ensure coherent feature outputs
Define workflows and experiment with new approaches; share findings with the team




Assist in transitioning teammates from deterministic to probabilistic thinking
Requisitos principales
~4+ years in software engineering
~ Experience shipping AI-powered features with production evaluation
~ Comfort reviewing agentic workflows and understanding LLM tradeoffs
~ Ability to break down non-deterministic outputs for the team to reason about
~ Proficiency in Ruby on Rails and React; experience integrating AI models into cloud-native environments
~ Ability to explain complex technical decisions in clear English
~ Owns end-to-end AI feature lifecycle: build, deploy, measure, adjust

Collaborative mindset
Problem-solving and curiosity
Clear communicator who can explain complex ideas to non-engineers
AI feature development and evaluation in production
Agentic/workflow design with multi-agent systems
LLM architecture tradeoffs

📌 Senior Product Engineer (Barcelona)
🏢 Jobrapido
📍 Barcelona