Senior Software Engineer - React Native

Summary

Join Samsara's Routing organization and build one of its most ambitious mobile experiences for drivers. This deeply technical role blends real-time data, UX, and platform coordination to create a seamless experience. As a full-time remote position with up to 10% travel, you will develop and maintain high-performance React Native mobile applications, design user-friendly UI components, optimize application performance, integrate with native modules, and collaborate with other engineers. This role offers the chance to impact global industries and advance your career within a supportive, high-caliber team. Samsara values quality, performance, and impact, and this role is critical to the success of its customers and the safety of their teams. Relocation assistance is not provided.

Requirements

• 6+ years of software development experience, including 4+ years of hands-on mobile app development with React Native in production environments
• Deep knowledge of React Native as a mobile-first framework, with a strong grasp of its architecture, native components, and limitations
• Proven experience creating native modules or bridging React Native with native iOS and Android code (Objective-C/Swift and Java/Kotlin)
• Strong track record of performance tuning in mobile apps, including use of profiling tools and techniques to diagnose and resolve performance issues
• Hands-on experience ensuring mobile app accessibility compliance, applying best practices so that the app is usable by all customers
• Solid testing and debugging skills in a mobile context – experience writing unit and integration tests and utilizing continuous integration pipelines to maintain app stability and quality

Responsibilities

• Champion, role model, and embed Samsara’s cultural principles (Focus on Customer Success, Build for the Long Term, Adopt a Growth Mindset, Be Inclusive, Win as a Team) as we scale globally and across new offices
• Develop and maintain high-performance React Native mobile applications for iOS and Android, delivering complex features at enterprise scale
• Design and implement polished, user-friendly UI components with a focus on accessibility and consistency across platforms, ensuring an excellent mobile user experience
• Profile and optimize application performance and responsiveness by identifying bottlenecks, reducing render times, and improving memory usage, resulting in smooth and stable app behavior on all supported devices
• Integrate with native iOS/Android modules and APIs when needed by leveraging React Native’s bridging capabilities to unlock platform-specific functionality
• Collaborate closely with product managers, designers, and backend engineers to plan and build new mobile features, ensuring code quality through peer reviews, robust testing, and adherence to mobile development best practices

Preferred Qualifications

• Familiarity with geospatial or mapping technologies such as Mapbox or Google Maps SDK
• Domain experience in logistics, fleet management, or industrial IoT
• Background in native mobile development (Swift/Objective-C and Kotlin/Java)

Benefits

• Health benefits
• Samsara for Good charity fund
• Employee-led remote and flexible working