Lead React Native Developer
Ruby Labs
full-time
Posted on:
Location Type: Remote
Location: Serbia
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Job Level
Tech Stack
About the role
- 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.
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard skills
React Nativemobile applicationssystem designcomponent architecturestate managementnavigation patternsUI performance optimizationnative modulesiOS/Android bridgingmonitoring and observability
Soft skills
technical leadershipmentoringownershipaccountabilitycross-team alignmentcoachingquality cultureincident responsecommunicationexecution