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OnePay Logo OnePay · IT - Software Development

React Native Engineer, Design Systems

United States 125000.00 - 190000.00 USD / Year · Job Posted February 21, 2026
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Job Description

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.

Job Responsibility

  • 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

Requirements

  • 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

What we offer

  • 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
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