React Native Engineer, Design Systems

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

As a React Native Engineer at OnePay, you'll craft simple, elegant mobile experiences that sit at the heart of our customers' financial lives - with a focus on UI animations and interaction design that make our app feel fast, intuitive, and delightful. You will:

• Build and ship animation-rich features that bring joy and clarity to our customers’ financial journeys

• Employ best practices such as code reviews, automated testing, and continuous delivery on a modern React Native stack to achieve both quality and velocity

• Partner with product managers, designers, and engineers to bring interaction and motion design concepts to life

• Optimize animations for performance across devices and platforms, ensuring smooth and consistent experiences

• Own your work from concept to launch, earning the trust of teammates through accountability and transparency

• 5+ years of professional experience building and deploying iOS and Android apps with React Native

• Deep experience with UI animations and interaction design (e.g., React Native Reanimated, Gesture Handler, Lottie, or native animation APIs)

• Experience building out scalable design system libraries or components

• Strong understanding of mobile performance optimization, including frame rate, rendering, and device resource constraints

• Passion for your craft and genuine care for teammates—quality in code, communication, and culture is non-negotiable

• Act-like-an-owner mentality: you proactively identify problems and drive them to resolution

• Drive and proactivity – everyone here is a builder and executor

We use Node and TypeScript on the server, leveraging the NestJS framework within a microservice-oriented architecture running on Kubernetes and AWS. On the client side, we build and ship product features for iOS, Android, and web platforms using React Native. While you don’t need experience with our exact stack, familiarity with modern software engineering practices will help you ramp up quickly.

• 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].