Hello
Do you want to help us

Hello
Do you want to help us redefine how AI powers the future of Business Management software, not as an add-on, but as a core part of how people work, decide and grow ?
We’re looking for engineers who:

- ? Treat AI as central to their craft
- ⚡ Are obsessed with building and shipping fast
- Care about real impact, not hierarchy or titles

If that sounds like you, keep reading.
? The Role
Design System Architect:
This is for a systems thinker with technical firepower , a builder’s mindset , and a strong design eye .
You’ll own the architecture of our company-wide design system — evolving it from a set of components to a real product infrastructure that fuels consistency, quality, and speed across every team.
Think: building the rails for AI-powered design → dev workflows, creating seamless tooling from Figma to code, and setting the bar for how we scale quality across the product.
Factorial is scaling fast — and this role is about laying the foundations for design and engineering to move at 10x speed with 10x consistency . You’ll have massive ownership, shape how we build product across the org, and leave a legacy in how we approach design quality at scale.
You won’t just be contributing to a system.
You’ll be engineering the product underneath the product.
? What You’ll Do
As a Design System Engineer at Factorial, you’ll help define and build the next generation of our AI-native product using modern AI development practices .
You will:

- Lead and scale our design system across the company

Define the technical architecture, tooling, documentation, governance, and implementation plan. Help us rethink how design systems operate in an AI-native product development flow

- Design and implement AI Skills

Build tools and plugins that connect Figma → code → AI-driven workflows

- Develop and maintain evaluation frameworks (Evals)

Partner with design, frontend, and product to ensure pixel-perfect execution at scale. Drive best practices around accessibility,



responsiveness, and usability

- Stay close to our customers

We have a strong customer-centric mindset : engineers regularly join customer calls, reviews, and feedback sessions to deeply understand real workflows, pain points, and constraints — ensuring we build the right solutions to real problems , not assumptions.

- Share knowledge and raise the bar

Mentor peers, document learnings, and contribute to Factorial’s AI engineering best practices.
? What we’re looking for
Your title matters less than your mindset .
You might be mid, senior, or staff, what we care about is:

- AI as a habit: you’ve built real AI-powered systems or workflows (not just experiments)
- Proven impact: shipped projects, side projects, or contributions that made a measurable difference
- Product-first thinking: you design complete experiences, not just isolated components
- Speed & adaptability: you experiment, learn, and iterate fast

Bonus points if you’ve worked with:
LLMs, skill-based agents, MCP, or other AI protocols ?✨
? Technical Foundation (Not Strict Requirements)
Strong candidates often have:

- Deep experience with React, TypeScript, and the modern frontend ecosystem
- Strong understanding of Figma, tokens, and component libraries
- Experience translating early concepts into production-grade design systems
- Product sense — you don’t just code components, you understand why they exist
- Builder mindset: you ship fast, clean, and don’t wait for perfect specs

Bonus if:

- You’ve built or contributed to internal tooling, plugins, or Figma-to-code pipelines
- You’ve explored ways to use AI to automate or accelerate parts of the design → dev flow
- You see design systems as a strategic layer, not just a UI toolkit

We care far more about what you’ve built than the stack you used.
How We Work

- Office-first in Barcelona & Madrid, with 20% remote flexibility
- A people-first, high-trust culture built on radical candor and ownership
- A multicultural team (40+ nationalities) building the next generation of business management software

📌 Ai‑powered Design System Architect (Madrid)
🏢 Factorial
📍 Madrid