Design System Engineer

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., 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.

Do you have experience in Usability?, * 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