Design System Engineer

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

🚀 About us

At Factorial, we’re building the leading business management software for companies of all sizes.

Our platform centralizes key workflows across HR, finance, and operations, freeing teams from manual processes so they can focus on what really matters: leading, growing, and taking care of their people.With over 1,200 employees across 7 markets, we serve 700,000+ users and are one of Europe’s fastest-growing SaaS companies, backed by top-tier investors and proudly headquartered in Barcelona.We believe in bold goals, radical ownership, and inclusive collaboration. If you're excited to shape the future of business management technology, we’d love to meet you.

🫀 Our Values

We own it

: We take responsibility for every project. We make decisions, not excuses.

We learn and teach

: We're dedicated to learning something new every day and, above all, share it.

We partner

: Every decision is a team decision. We trust each other.

We grow fast

: We act fast. We think that the worst mistake is not learning from them.

We believe in diverse talent:

We welcome applicants from all backgrounds and strongly encourage people of diverse experiences and identities to apply.

We believe in inclusion:

We are committed to equal opportunities and actively promote workplace inclusion of people with disabilities. If you would like to learn more about our inclusive recruitment processes, you are welcome to indicate so optionally and we will share additional information with you.

Wanna learn more about us? Check our

website

!

💆

Perks of being part of our team

We care about people and we also offer a lot of benefits for employees:

High growth, multicultural and friendly environment 🤝

Alan

as private health insurance 🩺

Healthy life with

Wellhub

(Gyms, pools, outdoor classes) 🧘🏽‍♀️

Save expenses with

Cobee

💰

Language classes 👩🏽‍🏫

Breakfast in the office and organic fruit 🍏

Nora

discounts 🍱

Free caffeine and theine ☕

Pet Friendly 🐕

💻 The hiring process

If you apply, here’s what to expect:

A first conversation with our

Talent Acquisition Partner

. It will be about comparing our expectations and making sure we match on a human level. We will also check our Engineering Rubrics (

check them out

, they are open!) and

the salary

in your position.

A second conversation with the team’s

Engineering Manager

. This is about making sure we can work together. Here you will have a conversation about the team, their needs, your profile and how can you complement it. Expect to have a mix of a human and technical conversation.

A

Live Engineering Challenge

with two Factorial engineers: At Factorial, we’re passionate about hiring engineers who can think clearly, communicate well, leverage the best tools, and learn very fast. In this challenge, we’re not looking for a finished product, but for how you structure problems, ask questions, use technology, and reason about solutions.

One

last coffee-chat with our CTO

, where you can get all the answers about Factorial’s culture, business vision, or anything else that interests you.

And that’s it! Feel free to request any other conversation you want, with team members or to address specific concerns at any time during the process.

The whole process is remote, using videoconferencing tools!