Senior / Staff React Native Engineer
Senior / Staff React Native EngineerOur client is a fast-growing, product-led technology company in the healthcare space, building high-impact mobile applications used daily by a large and rapidly expanding user base. The mobile app is the primary interface for users to manage sensitive data, communicate securely with service providers, and interact with complex, real-world workflows.This role is for a Senior or Staff-level React Native Engineer who will own the mobile experience end to end and act as a subject-matter expert for mobile architecture, performance, and delivery.The role is based in San Francisco, CA with an in-office work model (5 days/week).Role OverviewYou will lead the design, architecture, and ongoing evolution of a cross-platform mobile application built with React Native and Expo, operating in a regulated, high-stakes domain where reliability, performance, and user trust matter deeply. You'll have broad ownership-from mobile infrastructure and offline data strategies to UX polish and app store delivery.Key ResponsibilitiesArchitect and build scalable, high-performance React Native / Expo applicationsDesign and implement offline-first data synchronization and resilient mobile state managementIntegrate native mobile capabilities and platform services when requiredOwn mobile CI/CD pipelines, OTA updates, and app store release processesChampion mobile UX quality, accessibility, and performance optimizationCollaborate closely with product, design, backend, and compliance stakeholdersEstablish mobile engineering standards and raise the bar through code review and mentorshipLeverage modern AI-assisted development tools while maintaining high engineering rigorQualifications5-8+ years of frontend or mobile engineering experienceDeep expertise in React Native, Expo, and TypeScriptStrong understanding of mobile performance, rendering, and async workflowsExperience shipping and maintaining production mobile apps at scaleFamiliarity with mobile observability, crash monitoring, and release managementExperience with native iOS (Swift/Objective-C) or Android (Kotlin/Java) is a plusStaff-level candidates should demonstrate impact across teams and technical direction-setting