Lead React Native Developer

Ruby Labs

2d • Remote

About The Position

At RubyLabs we’re looking for a Lead React Native Developer to join our growing engineering team and help lead our expansion into mobile. This is a role for someone who cares deeply about product quality, enjoys solving architectural challenges, and wants ownership over real features that users rely on. You’ll play a key role in building and scaling our mobile applications, shaping the future of our mobile offering, and collaborating closely with backend and product teams to deliver a seamless, reliable, and high-performance user experience.

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.

Nice To Haves

• Experience in startup or high-ownership product teams.
• Experience scaling real-time or multi-region mobile architectures.
• Experience designing or building design systems, shared component libraries, or mobile platform foundations.
• Experience improving mobile security, analytics, performance profiling, and release automation.
• Knowledge of edge caching, streaming real-time events, WebSockets, or offline-first architectures.

Responsibilities

• 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.

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.

What This Job Offers

• Career Level: Mid Level
• Education Level: No Education Listed