Design system designer

About Pennylane

Our Vision
We aim to become the most beloved financial Operating System of French SMEs and Accounting Firms (and soon, European ones).
We help entrepreneurs rid themselves of time-consuming tasks related to accounting and finance while providing them with access to key financial information to assist in making the best decisions for their business.

About Us
Pennylane is one of the fastest growing Fintechs in France (and soon to be in Europe!)
In 6 years of existence, we've managed to:

• 💻 Make ourselves known as a groundbreaking accounting and financial software for small businesses and their accountants

• 💰 Raise a total of €225 millions, including from Sequoia, the famous fund from the Silicon Valley who invested early in companies like Google, Facebook, Airbnb, Stripe, Paypal and much more...

• 👨‍👩‍👧‍👦 Grow from 7 cofounders to 650+ happy Pennylaners: we're now recognized as one of the greatest places to work in France (and also remotely), with a 4.6/5 rating on Glassdoor.

• 🌍 Build an international environment with more than 25 nationalities, with a strong remote-friendly culture, where 30% of the employees are already working from all parts of Europe

• 🤝 Earn the trust of thousands of customers and accounting firms and obtain outstanding ratings

• 🚀 Already more than 400,000 small and medium-sized enterprises (SMEs) and over 4,500 accounting firms use Pennylane in France!

Design at Pennylane
Design sits at the centre of this mission and its purpose is to deliver a seamless, accessible and enjoyable experience for our users. Our team of 40+ product designers work across different tracks that are divided into cross-functional squads each consisting of Engineering, Product and Design. Autonomy, trust and transparency are the key values upon which our culture is built, this is directly reflected in how our designers operate on a day-to-day basis.

At Pennylane, designers are expected to actively contribute all the way from defining the problem space, to research and testing.

We are seeking a Design System Designer to grow and maintain Purse, our design system, alongside our Design System Manager. You will own the craft of the system at the component level: building tokens, components, and patterns that 40+ designers and engineers rely on every day across web, mobile, and tablet, in multiple languages.
You'll partner closely with engineering on design–code parity, with product designers as their support for system usage, and with our Design System Manager on the long-term direction of Purse. If you love the craft of system design, defining APIs, modeling tokens, writing documentation that's beautifully clear for both humans and AI , and care about how a great system shapes a great product, you'll thrive at Pennylane.

What you'll bring

Design System Expertise

• Hands-on experience contributing to a design system at scale: designing components, defining variants and APIs, modeling tokens, and maintaining Figma libraries used by 40+ designers

• Strong understanding of design token systems, semantic naming, and theming / multi-brand patterns

• Skilled at running design system audits, spotting inconsistencies in product surfaces, and bringing them back into the system

• Experience writing component documentation that is clear for designers, engineers, and product managers

• Expertise in what makes a design system interpretable and usable by AI: structured content, machine-readable patterns, AI-ready documentation conventions, and how an LLM or codegen agent consumes a design system

• Solid grounding in accessibility (WCAG) and inclusive design practices

Mindset

• You want to push the design system toward an ambitious vision, but you know how to slice the path into small intermediate milestones that deliver value at every step, rather than waiting for the perfect end state

• You are pragmatic: you don't overthink, you don't always work by the book, and you know when a "good enough" solution beats a perfect one

• You are curious about how design systems are evolving in 2026 (AI, codegen, token automation, MCP)

• You enjoy switching between deep craft work and pragmatic system-level decisions

Technical Partnership

• Strong technical acumen with a clear understanding of how design systems are implemented in code

• Comfortable working in a production-first environment where code is the source of truth, and Figma reflects what ships

• Experience partnering with engineering teams to ensure design–code parity and smooth implementation of new components

Enablement & Communication

• Experience supporting product designers through office hours, a support model, or peer review

• Demonstrated ability to evangelize a design system, present design rationale, and translate component-level decisions for non-design stakeholders

• Ability to handle complex support requests and turn recurring questions into permanent improvements (docs, lint rules, worked examples)

Nice to have

• Experience with B2B SaaS products or fintech environments

• Familiarity with multi-language / internationalization design challenges

• Experience contributing to or maintaining a tokens pipeline (Style Dictionary, Tokens Studio, MCP-based pipelines)

• Background in accessibility standards and inclusive design practices

• Experience working in fast-growing scale-ups

Your key responsibilities

• Build and maintain components, patterns, and tokens in Purse , partnering closely with engineering to ensure design–code parity across web, mobile, and tablet

• Write and maintain component documentation that serves designers, engineers, and AI tools — including usage rules, anatomy, variants, accessibility, and worked examples…

Source: Arbeitnow (https://www.arbeitnow.fr/jobs/companies/pennylane-sas/design-system-designer-paris-84394)