Senior Mobile Engineer - React Native

About the role

About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies-from the world's largest enterprises to the most ambitious startups-use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. We're a mobile engineering team based in Barcelona, focused on building world-class mobile applications that deliver excellent user experiences for Stripe merchants. React Native is at the core of how we build-it lets us move fast, share code across platforms, and ship high-quality experiences to millions of businesses worldwide without compromise. As a Senior Mobile Engineer on our team, you'll help shape our React Native architecture, set the bar for engineering quality, and play a meaningful role in defining what great mobile development looks like at Stripe. This is a high-impact role where your decisions will be felt across the product-and across the millions of merchants who depend on our apps every day.

Responsibilities

• As a Senior Mobile Engineer, you'll own significant parts of our React Native codebase, lead architectural decisions, and help grow the team around you. You'll work closely with product, design, and cross-functional partners to deliver polished, performant mobile experiences.
• Spearhead the design and development of critical product features, partnering with cross-functional teams to transform complex requirements into seamless, high-performance mobile experiences
• Champion the integration of AI and cutting-edge development tools to drive efficiency, elevate code standards, and cultivate a culture of AI-assisted engineering
• Own architectural decisions for the mobile layer-including navigation, state management, native module integration, and performance strategy
• Drive code quality through thorough code reviews, clear standards, and a strong testing culture
• Mentor and support junior and mid-level engineers, helping them grow technically and professionally
• Proactively identify and resolve performance bottlenecks across the JS thread, native bridge, and render pipeline, while scaling our mobile CI/CD infrastructure, release processes, and engineering tooling
• Act as the primary mobile platform liaison for internal teams, effectively translating requirements into well-scoped mobile initiatives while upholding rigorous standards for code quality and architectural integrity

Requirements

• We're looking for someone who meets the minimum requirements to be considered for the role. If you meet these requirements, you are encouraged to apply. The preferred qualifications are a bonus, not a requirement.
• Minimum requirements
• 5+ years of professional mobile development experience, with a strong focus on React Native
• Strong proficiency in TypeScript and modern JavaScript
• Solid understanding of mobile app architecture and design patterns (e.g., Flux, Redux, MobX, or similar)
• Proven expertise in React Native, encompassing component architecture, performance tuning, and a demonstrated ability to ship and maintain high-quality production applications at scale
• Excellent problem-solving skills and ability to communicate complex technical concepts clearly
• Experience with Expo (managed or bare workflow)
• Experience designing and maintaining mobile CI/CD pipelines (e.g., Fastlane, GitHub Actions, Bitrise)
• Experience building or contributing to mobile SDKs or shared component libraries
• Experience with backend development (REST APIs and GraphQL)
• Contributions to open-source React Native libraries or the broader JS and mobile ecosystem
• Experience mentoring engineers and contributing to a team's engineering culture
• Familiarity with native iOS (Swift, UIKit) or Android (Kotlin, Android SDK) development
• Experience working in a remote-first or distributed engineering environment

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