Design Systems Engineer

OnePay is the consumer fintech trusted by millions of Americans to make money better.

Our financial system is broken. High fees, low rates, and too few ways to actually grow your money. We’re fixing it. And we’re moving fast.

We’re an all-in-one financial services platform that brings together banking, high-yield savings, credit cards, point-of-sale lending, investing, and crypto in one place. We also partner with employers, HCM providers, gig platforms, and others to deliver embedded financial services to millions of employees and frontline workers.

We’re backed by Walmart, the world’s largest retailer, and Ribbit Capital, one of fintech’s most respected investors, giving us rare scale, distribution, and the opportunity to build something truly category-defining.

But what really sets OnePay apart is how we move. Our customers don’t have time to wait… and neither do we. This place moves fast, and we’re looking for people who are:

• Ready to run

• Hungry and driven by urgency

• Exceptional at what they do, with low ego

• Comfortable operating in motion

Experience Design at OnePay shapes how millions of people interact with their money. The product touches saving, spending, borrowing, and growing wealth – often for people the traditional financial system has underserved. That weight raises the bar on craft and on the systems that produce it.

We’re a small, senior team with roots at Apple, Meta, Ford, Airbnb, and leading fintechs – low ego, high craft, and genuinely collaborative. AI is a baseline part of how we work, not a future we’re talking about.

We’re looking for a Design Systems Engineer to architect the design platform for OnePay. This is not a library-maintainer role. You’re building the infrastructure that lets designers, engineers, product, marketing, and creative all consume and extend the system with confidence.

AI-native design systems are the new standard, and you’re building for that reality. You’ll connect the design system to the AI layer so designers can use AI tools that understand the system, engineers can generate code that’s already system-compliant, and the gap between design and production keeps shrinking. MCPs, token pipelines, LLM-aware components, AI-generated variants that stay on-system.

You’ll work tightly with the Design Engineer to evolve the design-to-code pipeline, and partner across the org to make the platform genuinely useful beyond design and engineering.

What we’re looking for

• You build platforms, not libraries. You’re thinking about adoption, extensibility, and the people downstream who depend on what you ship – not just the artifact itself.

• You’re rethinking what a design system is. Most systems were built for a pre-AI world. You’re excited to question fundamentals and design infrastructure that’s native to how teams work now.

• You’re AI-native by default. MCPs, LLM integrations, and AI-assisted workflows are already part of your toolkit. You see AI as core infrastructure, not an add-on.

• You’re tool-agnostic. Figma is the standard today, but you know the landscape is moving. You optimize for systems thinking over tool expertise.

• You serve the whole org. Designers, engineers, product, marketing, creative – everyone consuming design work is your audience.

• You ship infrastructure others use. You’d rather see five teams adopt your work than write a perfect spec nobody reads.

• Deep experience with design system architecture across Figma and code.

• Hands-on work integrating AI into design and engineering workflows – MCPs, LLM integrations, automation.

• Fluency in design tokens, component architecture, and how design systems map to production code.

• Scripting or plugin development experience (Figma plugins, APIs, or similar).

• A track record of building systems that serve audiences beyond designers and engineers.

• Comfort defining and tracking what success looks like: adoption, speed, consistency, design-to-production fidelity.

• Competitive base salary, stock options, and health benefits from Day 1

• 401(k) plan with company match

• Remote-friendly (US), flexible time off (FTO), and opportunities for growth

• A high-growth, mission-driven, inclusive culture where your work has real impact

• Initial Interview with Talent Partner

• Technical or Hiring Manager Interview

• Team Interview

• Executive Interview

• Offer!

To build technology and products that are used and loved by people and solve real-world problems, we need to build a team with many different perspectives and experiences. We are an equal opportunity employer. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. We encourage candidates from all backgrounds to apply. Applicants in need of special assistance or accommodation during the interview process or in accessing our website may contact us at [email protected].