Lead React Native Developer

9 hours ago

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Health • Education • Entertainment

Ruby Labs is a company that creates cutting-edge consumer products designed to innovate across health, education, and entertainment sectors. With a commitment to enhancing lives and making a positive impact, Ruby Labs is at the forefront of technological progress. Their diverse portfolio reflects their dedication to innovation in vital sectors of society, specifically health and wellness, pharmaceuticals, education, and entertainment. Ruby Labs has a self-funded model that empowers them to pursue ambitious ideas independently. The company boasts over 100 million annual users and has a track record of sustained growth over 6 years, delivering products that are adopted by millions.

📋 Description

• Lead the development and delivery of new mobile product features. • Maintain and improve the existing React Native codebase, performance, and stability. • Define and evolve mobile architecture, system design, and technical strategy. • Partner with backend, product, and design teams to shape solutions that scale. • Drive reliability, performance, and observability standards on mobile. • Own production debugging, incident investigation, and root cause analysis. • Guide improvements in build systems, CI/CD, releases, testing, and app store deployments. • Mentor engineers and foster a culture of quality, ownership, and execution. • Support hiring and help grow a world-class mobile engineering team. • Champion performance across rendering, navigation, latency, memory, offline behavior, caching, and real-time experiences. • Lead with accountability for failure cases, API degradation, recovery UX, and resilience.

🎯 Requirements

• 5+ years of experience building mobile applications, with significant React Native experience. • 2+ years in a technical leadership, lead, or architect role. • Experience mentoring engineers through code reviews, architecture, and incident response. • Strong understanding of mobile system design, component architecture, state management, navigation patterns, and performance trade-offs. • Experience optimizing UI performance, memory usage, rendering efficiency, and startup time. • Deep knowledge of React internals and rendering behavior (hooks, reconciliation, lifecycle, render cost). • Experience working with native modules and iOS/Android bridging. • Shipped and maintained apps on the App Store and Google Play. • Experience with CI/CD, builds, release automation, and OTA updates (EAS, CodePush, or similar). • Experience implementing monitoring and observability (Sentry, OpenTelemetry, crash reporting, performance tracing). • Demonstrated ownership of edge cases, distributed failure modes, degraded APIs, offline sync, and recovery UX. • Demonstrated ability to lead architecture or technical strategy for a mobile app or major feature. • Maintains high standards for clean code, SOLID principles, maintainability, and documentation. • Proven experience leading and mentoring mobile engineers. • Proven ownership of technical strategy or architecture for mobile apps or features. • Proven ability to coach others and raise the bar across a team. • Leads cross-team alignment during ambiguity or incidents.

🏖️ Benefits

• Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance. • Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days. • Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge. • Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them. • Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere.