Hello!Do you want to help usHello!Do you want to help usredefine how AI powers the future of Business Management software,not as an add-on, but as acore 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 fastCare about real impact, not hierarchy or titlesIf that sounds like you, keep reading.The RoleDesign System Architect:This is for asystems thinkerwithtechnical firepower, abuilder’s mindset, and a strongdesign eye.You’ll own the architecture of ourcompany-wide design system— evolving it from a set of components to areal product infrastructurethat 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 thefoundations 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 beengineering the product underneath the product.What You’ll DoAs aDesign System Engineerat Factorial, you’ll help define and build the next generation of our AI-native product usingmodern AI development practices.You will:Lead and scale our design system across the companyDefine the technical architecture, tooling, documentation, governance, and implementation plan. Help us rethink how design systems operate in anAI-native product development flowDesign and implement AI SkillsBuild tools and plugins that connectFigma → code → AI-driven workflowsDevelop and maintain evaluation frameworks (Evals)Partner with design, frontend, and product to ensurepixel-perfect execution at scale.Drive best practices around accessibility, responsiveness, and usabilityStay close to our customersWe have a strongcustomer-centric mindset : engineers regularly join customer calls, reviews, and feedback sessions to deeply understand real workflows, pain points, and constraints — ensuring we build theright solutions to real problems, not assumptions.Share knowledge and raise the barMentor peers, document learnings, and contribute to Factorial’s AI engineering best practices.What we’re looking forYour title matters less than yourmindset.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 differenceProduct-first thinking: you design complete experiences, not just isolated componentsSpeed & adaptability: you experiment, learn, and iterate fastBonus 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, Type Script, and the modern frontend ecosystemStrong understanding of Figma, tokens, and component librariesExperience translating early concepts into production-grade design systemsProduct sense — you don’t just code components, you understand why they existBuilder mindset: you ship fast, clean, and don’t wait for perfect specsBonus if:You’ve built or contributed to internal tooling, plugins, or Figma-to-code pipelinesYou’ve explored ways to use AI to automate or accelerate parts of the design → dev flowYou see design systems as a strategic layer, not just a UI toolkitWe care far more aboutwhat you’ve builtthan the stack you used.How We WorkOffice-first in Barcelona & Madrid, with 20% remote flexibilityA people-first, high-trust culture built on radical candor and ownershipA multicultural team (40+ nationalities) building the next generation of business management softwareAbout UsAt 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 Saa S 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 ValuesWe 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 teamWe care about people and we also offer a lot of benefits for employees:High growth, multicultural and friendly environmentAlan as private health insuranceHealthy life with Wellhub (Gyms, pools, outdoor classes) ♀️Save expenses with CobeeLanguage classesBreakfast in the office and organic fruitNora discountsFree caffeine and theine ☕Pet FriendlyThe hiring processIf 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!

📌 Design System Engineer (Madrid)
🏢 Factorial
📍 Madrid